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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009055 / 0.011353 (-0.002298) | 0.008835 / 0.011008 (-0.002173) | 0.117048 / 0.038508 (0.078540) | 0.096268 / 0.023109 (0.073159) | 0.474678 / 0.275898 (0.198780) | 0.550509 / 0.323480 (0.227029) | 0.005552 / 0.007986 (-0.002434) | 0.004315 / 0.004328 (-0.000013) | 0.094336 / 0.004250 (0.090086) | 0.061945 / 0.037052 (0.024892) | 0.461422 / 0.258489 (0.202933) | 0.521271 / 0.293841 (0.227430) | 0.049116 / 0.128546 (-0.079430) | 0.015007 / 0.075646 (-0.060639) | 0.414351 / 0.419271 (-0.004920) | 0.137520 / 0.043533 (0.093987) | 0.465627 / 0.255139 (0.210488) | 0.537244 / 0.283200 (0.254044) | 0.068577 / 0.141683 (-0.073106) | 1.921373 / 1.452155 (0.469219) | 2.506653 / 1.492716 (1.013937) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.273970 / 0.018006 (0.255963) | 0.750295 / 0.000490 (0.749805) | 0.004241 / 0.000200 (0.004041) | 0.000128 / 0.000054 (0.000073) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.033793 / 0.037411 (-0.003618) | 0.105562 / 0.014526 (0.091037) | 0.131771 / 0.176557 (-0.044786) | 0.196890 / 0.737135 (-0.540245) | 0.119842 / 0.296338 (-0.176496) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.634881 / 0.215209 (0.419672) | 6.069221 / 2.077655 (3.991566) | 2.678765 / 1.504120 (1.174646) | 2.460309 / 1.541195 (0.919114) | 2.517579 / 1.468490 (1.049089) | 0.869558 / 4.584777 (-3.715219) | 5.407686 / 3.745712 (1.661974) | 4.920687 / 5.269862 (-0.349175) | 3.130066 / 4.565676 (-1.435611) | 0.100337 / 0.424275 (-0.323938) | 0.009615 / 0.007607 (0.002008) | 0.745275 / 0.226044 (0.519231) | 7.577890 / 2.268929 (5.308962) | 3.607887 / 55.444624 (-51.836738) | 2.922211 / 6.876477 (-3.954266) | 3.205592 / 2.142072 (1.063519) | 1.052298 / 4.805227 (-3.752929) | 0.218798 / 6.500664 (-6.281866) | 0.082137 / 0.075469 (0.006667) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.696551 / 1.841788 (-0.145237) | 24.946074 / 8.074308 (16.871766) | 23.114202 / 10.191392 (12.922810) | 0.220498 / 0.680424 (-0.459925) | 0.029388 / 0.534201 (-0.504813) | 0.494721 / 0.579283 (-0.084562) | 0.603085 / 0.434364 (0.168722) | 0.573093 / 0.540337 (0.032756) | 0.784937 / 1.386936 (-0.601999) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009642 / 0.011353 (-0.001711) | 0.007551 / 0.011008 (-0.003457) | 0.085224 / 0.038508 (0.046716) | 0.099493 / 0.023109 (0.076384) | 0.503824 / 0.275898 (0.227926) | 0.546583 / 0.323480 (0.223103) | 0.006385 / 0.007986 (-0.001601) | 0.004751 / 0.004328 (0.000423) | 0.084699 / 0.004250 (0.080449) | 0.067875 / 0.037052 (0.030823) | 0.485313 / 0.258489 (0.226824) | 0.535808 / 0.293841 (0.241967) | 0.049935 / 0.128546 (-0.078611) | 0.014427 / 0.075646 (-0.061219) | 0.095531 / 0.419271 (-0.323741) | 0.068487 / 0.043533 (0.024954) | 0.502204 / 0.255139 (0.247065) | 0.514393 / 0.283200 (0.231193) | 0.037350 / 0.141683 (-0.104333) | 1.849380 / 1.452155 (0.397226) | 1.920151 / 1.492716 (0.427434) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.298363 / 0.018006 (0.280357) | 0.651555 / 0.000490 (0.651065) | 0.005910 / 0.000200 (0.005710) | 0.000103 / 0.000054 (0.000048) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.039170 / 0.037411 (0.001758) | 0.106436 / 0.014526 (0.091910) | 0.129880 / 0.176557 (-0.046677) | 0.185401 / 0.737135 (-0.551734) | 0.125732 / 0.296338 (-0.170607) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.643248 / 0.215209 (0.428039) | 6.374807 / 2.077655 (4.297152) | 3.057296 / 1.504120 (1.553176) | 2.779534 / 1.541195 (1.238340) | 2.790165 / 1.468490 (1.321675) | 0.841580 / 4.584777 (-3.743197) | 5.371478 / 3.745712 (1.625766) | 4.973251 / 5.269862 (-0.296610) | 3.235817 / 4.565676 (-1.329860) | 0.097276 / 0.424275 (-0.326999) | 0.008840 / 0.007607 (0.001233) | 0.728678 / 0.226044 (0.502634) | 7.526382 / 2.268929 (5.257454) | 3.792550 / 55.444624 (-51.652074) | 3.439134 / 6.876477 (-3.437342) | 3.466626 / 2.142072 (1.324553) | 1.035894 / 4.805227 (-3.769333) | 0.211670 / 6.500664 (-6.288994) | 0.087596 / 0.075469 (0.012127) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.782755 / 1.841788 (-0.059033) | 25.704407 / 8.074308 (17.630099) | 23.799672 / 10.191392 (13.608280) | 0.233952 / 0.680424 (-0.446472) | 0.030810 / 0.534201 (-0.503391) | 0.505857 / 0.579283 (-0.073426) | 0.629331 / 0.434364 (0.194967) | 0.608530 / 0.540337 (0.068192) | 0.813688 / 1.386936 (-0.573248) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#ed4d6bb5f1331576c41b04acd9872a5349a0915c \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006401 / 0.011353 (-0.004952) | 0.003916 / 0.011008 (-0.007092) | 0.083976 / 0.038508 (0.045468) | 0.072583 / 0.023109 (0.049474) | 0.322747 / 0.275898 (0.046849) | 0.345159 / 0.323480 (0.021679) | 0.005366 / 0.007986 (-0.002620) | 0.003399 / 0.004328 (-0.000930) | 0.064232 / 0.004250 (0.059982) | 0.053313 / 0.037052 (0.016261) | 0.353127 / 0.258489 (0.094638) | 0.361398 / 0.293841 (0.067557) | 0.030604 / 0.128546 (-0.097942) | 0.008615 / 0.075646 (-0.067031) | 0.285806 / 0.419271 (-0.133466) | 0.050887 / 0.043533 (0.007354) | 0.312293 / 0.255139 (0.057154) | 0.349716 / 0.283200 (0.066516) | 0.024546 / 0.141683 (-0.117137) | 1.472318 / 1.452155 (0.020163) | 1.536063 / 1.492716 (0.043347) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.280012 / 0.018006 (0.262006) | 0.593574 / 0.000490 (0.593085) | 0.004083 / 0.000200 (0.003883) | 0.000195 / 0.000054 (0.000141) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.027715 / 0.037411 (-0.009696) | 0.081392 / 0.014526 (0.066866) | 0.096445 / 0.176557 (-0.080112) | 0.152131 / 0.737135 (-0.585004) | 0.094825 / 0.296338 (-0.201514) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.380749 / 0.215209 (0.165540) | 3.806994 / 2.077655 (1.729339) | 1.842544 / 1.504120 (0.338424) | 1.682829 / 1.541195 (0.141635) | 1.701679 / 1.468490 (0.233189) | 0.484830 / 4.584777 (-4.099947) | 3.517359 / 3.745712 (-0.228353) | 3.231211 / 5.269862 (-2.038651) | 2.029371 / 4.565676 (-2.536306) | 0.057199 / 0.424275 (-0.367077) | 0.007653 / 0.007607 (0.000046) | 0.458572 / 0.226044 (0.232528) | 4.579835 / 2.268929 (2.310907) | 2.326467 / 55.444624 (-53.118157) | 1.939646 / 6.876477 (-4.936831) | 2.133150 / 2.142072 (-0.008922) | 0.596251 / 4.805227 (-4.208976) | 0.131979 / 6.500664 (-6.368686) | 0.059226 / 0.075469 (-0.016243) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.234833 / 1.841788 (-0.606955) | 19.475522 / 8.074308 (11.401214) | 14.102760 / 10.191392 (3.911368) | 0.159657 / 0.680424 (-0.520767) | 0.018292 / 0.534201 (-0.515909) | 0.391079 / 0.579283 (-0.188204) | 0.406736 / 0.434364 (-0.027628) | 0.459159 / 0.540337 (-0.081178) | 0.618159 / 1.386936 (-0.768777) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006592 / 0.011353 (-0.004761) | 0.004052 / 0.011008 (-0.006957) | 0.064536 / 0.038508 (0.026028) | 0.075051 / 0.023109 (0.051942) | 0.379596 / 0.275898 (0.103698) | 0.412413 / 0.323480 (0.088933) | 0.005377 / 0.007986 (-0.002608) | 0.003466 / 0.004328 (-0.000863) | 0.064958 / 0.004250 (0.060708) | 0.055265 / 0.037052 (0.018213) | 0.391505 / 0.258489 (0.133016) | 0.425345 / 0.293841 (0.131504) | 0.030750 / 0.128546 (-0.097796) | 0.008652 / 0.075646 (-0.066994) | 0.072107 / 0.419271 (-0.347165) | 0.048340 / 0.043533 (0.004807) | 0.387714 / 0.255139 (0.132575) | 0.402602 / 0.283200 (0.119402) | 0.023492 / 0.141683 (-0.118191) | 1.528377 / 1.452155 (0.076222) | 1.574827 / 1.492716 (0.082110) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.316999 / 0.018006 (0.298993) | 0.528391 / 0.000490 (0.527901) | 0.005183 / 0.000200 (0.004983) | 0.000085 / 0.000054 (0.000031) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029670 / 0.037411 (-0.007741) | 0.087130 / 0.014526 (0.072604) | 0.099897 / 0.176557 (-0.076660) | 0.154074 / 0.737135 (-0.583062) | 0.104309 / 0.296338 (-0.192030) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.408804 / 0.215209 (0.193595) | 4.072248 / 2.077655 (1.994593) | 2.103333 / 1.504120 (0.599213) | 1.931972 / 1.541195 (0.390777) | 1.980132 / 1.468490 (0.511642) | 0.482623 / 4.584777 (-4.102154) | 3.532789 / 3.745712 (-0.212923) | 3.304962 / 5.269862 (-1.964899) | 2.036672 / 4.565676 (-2.529004) | 0.056944 / 0.424275 (-0.367331) | 0.007190 / 0.007607 (-0.000417) | 0.490650 / 0.226044 (0.264606) | 4.903604 / 2.268929 (2.634675) | 2.586247 / 55.444624 (-52.858377) | 2.227631 / 6.876477 (-4.648846) | 2.397286 / 2.142072 (0.255214) | 0.579167 / 4.805227 (-4.226060) | 0.132037 / 6.500664 (-6.368627) | 0.059971 / 0.075469 (-0.015498) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.336430 / 1.841788 (-0.505358) | 19.915846 / 8.074308 (11.841538) | 14.102781 / 10.191392 (3.911389) | 0.147956 / 0.680424 (-0.532468) | 0.018192 / 0.534201 (-0.516009) | 0.397949 / 0.579283 (-0.181334) | 0.408529 / 0.434364 (-0.025835) | 0.479382 / 0.540337 (-0.060955) | 0.659735 / 1.386936 (-0.727201) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#98074122449bc031f7269f298f1c55f20e39b975 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005880 / 0.011353 (-0.005473) | 0.003677 / 0.011008 (-0.007332) | 0.080022 / 0.038508 (0.041514) | 0.055554 / 0.023109 (0.032445) | 0.397449 / 0.275898 (0.121551) | 0.428346 / 0.323480 (0.104867) | 0.004613 / 0.007986 (-0.003373) | 0.002873 / 0.004328 (-0.001455) | 0.062226 / 0.004250 (0.057976) | 0.044721 / 0.037052 (0.007669) | 0.404792 / 0.258489 (0.146303) | 0.437467 / 0.293841 (0.143626) | 0.027166 / 0.128546 (-0.101381) | 0.008077 / 0.075646 (-0.067569) | 0.260469 / 0.419271 (-0.158803) | 0.043551 / 0.043533 (0.000018) | 0.401712 / 0.255139 (0.146573) | 0.427294 / 0.283200 (0.144094) | 0.021243 / 0.141683 (-0.120440) | 1.464553 / 1.452155 (0.012398) | 1.507112 / 1.492716 (0.014396) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.198415 / 0.018006 (0.180408) | 0.427940 / 0.000490 (0.427450) | 0.004236 / 0.000200 (0.004036) | 0.000067 / 0.000054 (0.000013) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023759 / 0.037411 (-0.013652) | 0.073262 / 0.014526 (0.058736) | 0.677113 / 0.176557 (0.500557) | 0.194964 / 0.737135 (-0.542172) | 0.086121 / 0.296338 (-0.210217) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.401176 / 0.215209 (0.185967) | 4.028688 / 2.077655 (1.951034) | 2.026804 / 1.504120 (0.522685) | 1.887964 / 1.541195 (0.346770) | 2.008991 / 1.468490 (0.540501) | 0.498847 / 4.584777 (-4.085930) | 3.015920 / 3.745712 (-0.729792) | 2.837019 / 5.269862 (-2.432843) | 1.849976 / 4.565676 (-2.715701) | 0.057545 / 0.424275 (-0.366730) | 0.006645 / 0.007607 (-0.000962) | 0.470225 / 0.226044 (0.244180) | 4.720910 / 2.268929 (2.451982) | 2.473693 / 55.444624 (-52.970931) | 2.177525 / 6.876477 (-4.698952) | 2.374702 / 2.142072 (0.232630) | 0.588253 / 4.805227 (-4.216974) | 0.125512 / 6.500664 (-6.375152) | 0.061247 / 0.075469 (-0.014222) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.255829 / 1.841788 (-0.585959) | 18.251689 / 8.074308 (10.177381) | 13.690373 / 10.191392 (3.498981) | 0.146928 / 0.680424 (-0.533496) | 0.016534 / 0.534201 (-0.517667) | 0.335249 / 0.579283 (-0.244034) | 0.338940 / 0.434364 (-0.095424) | 0.382170 / 0.540337 (-0.158168) | 0.529570 / 1.386936 (-0.857366) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005920 / 0.011353 (-0.005433) | 0.003557 / 0.011008 (-0.007451) | 0.062776 / 0.038508 (0.024267) | 0.058473 / 0.023109 (0.035364) | 0.358780 / 0.275898 (0.082882) | 0.394161 / 0.323480 (0.070682) | 0.004636 / 0.007986 (-0.003349) | 0.002865 / 0.004328 (-0.001463) | 0.062033 / 0.004250 (0.057782) | 0.047154 / 0.037052 (0.010101) | 0.367718 / 0.258489 (0.109229) | 0.400814 / 0.293841 (0.106973) | 0.026919 / 0.128546 (-0.101628) | 0.008071 / 0.075646 (-0.067575) | 0.067802 / 0.419271 (-0.351469) | 0.040894 / 0.043533 (-0.002638) | 0.358757 / 0.255139 (0.103618) | 0.384971 / 0.283200 (0.101771) | 0.020019 / 0.141683 (-0.121664) | 1.458578 / 1.452155 (0.006423) | 1.525059 / 1.492716 (0.032342) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.207795 / 0.018006 (0.189789) | 0.413201 / 0.000490 (0.412712) | 0.005199 / 0.000200 (0.004999) | 0.000085 / 0.000054 (0.000031) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025716 / 0.037411 (-0.011696) | 0.078434 / 0.014526 (0.063908) | 0.086920 / 0.176557 (-0.089637) | 0.138327 / 0.737135 (-0.598808) | 0.088120 / 0.296338 (-0.208219) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.434344 / 0.215209 (0.219135) | 4.343114 / 2.077655 (2.265459) | 2.384439 / 1.504120 (0.880319) | 2.253929 / 1.541195 (0.712735) | 2.306811 / 1.468490 (0.838321) | 0.497572 / 4.584777 (-4.087205) | 3.028794 / 3.745712 (-0.716919) | 2.833484 / 5.269862 (-2.436377) | 1.878918 / 4.565676 (-2.686759) | 0.057133 / 0.424275 (-0.367143) | 0.006357 / 0.007607 (-0.001251) | 0.508019 / 0.226044 (0.281975) | 5.076935 / 2.268929 (2.808007) | 2.745784 / 55.444624 (-52.698841) | 2.476291 / 6.876477 (-4.400186) | 2.677264 / 2.142072 (0.535191) | 0.587173 / 4.805227 (-4.218054) | 0.126373 / 6.500664 (-6.374291) | 0.062815 / 0.075469 (-0.012654) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.355482 / 1.841788 (-0.486305) | 18.818227 / 8.074308 (10.743919) | 13.954289 / 10.191392 (3.762896) | 0.143413 / 0.680424 (-0.537011) | 0.016844 / 0.534201 (-0.517357) | 0.338334 / 0.579283 (-0.240949) | 0.344559 / 0.434364 (-0.089805) | 0.400669 / 0.540337 (-0.139669) | 0.563835 / 1.386936 (-0.823101) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#c02a44715c036b5261686669727394b1308a3a4b \"CML watermark\")\n" ]

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[ "I noticed that this is actually covered by issue #5613, which for some reason I didn't see when I searched the issues in this repo the first time." ]

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[ "@lhoestq ", "It's roughly the same code between the two so we can expected roughly the same speed, could you share a benchmark ?" ]

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[ "Fixed with PR" ]

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[ "@lhoestq ", "What should be the behavior in this case ? Should it override the default config with the added parameter ?", "I know why it should be treated as a new config if overriding parameters are passed. But in some case, I just pass in some common fields like `data_dir`.\r\n\r\nFor example, I want to extend the FolderBasedBuilder as a multi-config version, the `data_dir` or `data_files` are always passed by user and should not be considered as overriding the default config. In current state, I cannot leverage the feature of default config since passing `data_dir` will disable the default config.", "Thinking more about it I think the current behavior is the right one.\r\n\r\nProvided parameters should be passed to instantiate a new BuilderConfig.\r\n\r\nWhat's the error you're getting ?", "For example, this works to use default config with name '_all_':\r\n```python\r\ndatasets.load_dataset(\"indonesian-nlp/librivox-indonesia\", split=\"train\")\r\n```\r\nwhile this failed to use default config\r\n```python\r\ndatasets.load_dataset(\"indonesian-nlp/librivox-indonesia\", split=\"train\", data_dir='.')\r\n```\r\nAfter manually specifying it, it works again.\r\n```python\r\ndatasets.load_dataset(\"indonesian-nlp/librivox-indonesia\", \"_all_\", split=\"train\", data_dir='.')\r\n```", "@lhoestq ", "It should work if you explicitly ask for the config you want to override\r\n\r\n```python\r\nload_dataset('/dataset/with/multiple/config', 'name_of_the_default_config', some_field_in_config='some')\r\n```\r\n\r\nAlternatively you can have a BuilderConfig class that when instantiated returns a config with the right default values. In this case this code would instantiate this config with the default values except for the parameter to override:\r\n\r\n```python\r\nload_dataset('/dataset/with/multiple/config', some_field_in_config='some')\r\n```", "@lhoestq Yes. But it doesn't work for me.\r\n\r\nHere's my dataset for example.\r\n```\r\nlass MyDatasetConfig(datasets.BuilderConfig):\r\n def __init__(self, name: str, version: str, **kwargs):\r\n self.option1 = kwargs.pop(\"option1\", False)\r\n self.option2 = kwargs.pop(\"option2\", 5)\r\n\r\n super().__init__(\r\n name=name,\r\n version=datasets.Version(version),\r\n **kwargs)\r\n\r\n\r\nclass MyDataset(datasets.GeneratorBasedBuilder):\r\n DEFAULT_CONFIG_NAME = \"v1\"\r\n\r\n BUILDER_CONFIGS = [\r\n UnifiedTtsDatasetConfig(\r\n name=\"v1\",\r\n version=\"1.0.0\",\r\n description=\"Initial version of the dataset\"\r\n ),\r\n ]\r\n\r\n def _info(self) -> DatasetInfo:\r\n _ = self.option1\r\n ....\r\n```\r\n\r\nHere it's okay to use `load_dataset('my_dataset.py')` for loading the default config `v1`.\r\n\r\nBut if I want to override the default values in config with `load_dataset('my_dataset.py', option2=3)`, it failed to find my default config `v1.\r\n\r\nUnless I use `load_dataset('my_dataset.py', 'v1', option2=3)`\r\n\r\nSo according to your advice, how can I modify my dataset to be able to override default config without manually specifying it.", "What's the error ? It should try to instantiate `MyDatasetConfig` with `option2=3`", "@lhoestq The error is\r\n```\r\ndef _info(self) -> DatasetInfo:\r\n _ = self.option1 <-\r\n ....\r\nAttributeError: 'BuilderConfig' object has no attribute 'option1'\r\n```\r\nwhich seems to find another unknown config.\r\n\r\nYou can try this line `datasets.load_dataset(\"indonesian-nlp/librivox-indonesia\", split=\"train\", data_dir='.')`, it's a multi-config dataset on HF hub and the error is the same.\r\n\r\nMy insights:\r\nhttps://github.com/huggingface/datasets/blob/12cfc1196e62847e2e8239fbd727a02cbc86ddec/src/datasets/builder.py#L518\r\nif `config_kwargs` is provided here, the if branch is skipped.", "I see, you just have to set this class attribute to your builder class :)\r\n\r\n```python\r\nBUILDER_CONFIG_CLASS = MyDatasetConfig\r\n```", "So what does this attribute do? In most cases it's not used and the [documents for multi-config dataset](https://huggingface.co/docs/datasets/main/en/image_dataset#multiple-configurations) never mentioned that.", "It tells which builder config class to instantiate if additional config parameters are passed to load_dataset", "@lhoestq maybe we can enhance the document to say something about the common attributes of `DatasetBuilder`", "Ah indeed it's missing in the docs, thanks for reporting. I'm opening a PR" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006053 / 0.011353 (-0.005299) | 0.003532 / 0.011008 (-0.007476) | 0.081930 / 0.038508 (0.043422) | 0.059043 / 0.023109 (0.035934) | 0.322785 / 0.275898 (0.046887) | 0.378158 / 0.323480 (0.054678) | 0.004709 / 0.007986 (-0.003277) | 0.002907 / 0.004328 (-0.001421) | 0.061516 / 0.004250 (0.057266) | 0.047209 / 0.037052 (0.010157) | 0.346885 / 0.258489 (0.088396) | 0.381011 / 0.293841 (0.087170) | 0.027491 / 0.128546 (-0.101055) | 0.008014 / 0.075646 (-0.067632) | 0.260663 / 0.419271 (-0.158608) | 0.045427 / 0.043533 (0.001894) | 0.315277 / 0.255139 (0.060138) | 0.377902 / 0.283200 (0.094703) | 0.021371 / 0.141683 (-0.120311) | 1.416350 / 1.452155 (-0.035804) | 1.483345 / 1.492716 (-0.009372) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.203660 / 0.018006 (0.185654) | 0.569081 / 0.000490 (0.568591) | 0.002742 / 0.000200 (0.002542) | 0.000074 / 0.000054 (0.000019) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023456 / 0.037411 (-0.013955) | 0.073954 / 0.014526 (0.059428) | 0.082991 / 0.176557 (-0.093566) | 0.144781 / 0.737135 (-0.592354) | 0.083346 / 0.296338 (-0.212992) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.391542 / 0.215209 (0.176333) | 3.909505 / 2.077655 (1.831850) | 1.862234 / 1.504120 (0.358114) | 1.676076 / 1.541195 (0.134881) | 1.727595 / 1.468490 (0.259105) | 0.501769 / 4.584777 (-4.083008) | 3.083697 / 3.745712 (-0.662016) | 2.819751 / 5.269862 (-2.450111) | 1.867265 / 4.565676 (-2.698411) | 0.057575 / 0.424275 (-0.366700) | 0.006478 / 0.007607 (-0.001129) | 0.466684 / 0.226044 (0.240640) | 4.657982 / 2.268929 (2.389054) | 2.347052 / 55.444624 (-53.097573) | 1.964688 / 6.876477 (-4.911789) | 2.077821 / 2.142072 (-0.064252) | 0.590591 / 4.805227 (-4.214636) | 0.124585 / 6.500664 (-6.376079) | 0.059468 / 0.075469 (-0.016001) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.223484 / 1.841788 (-0.618304) | 18.104638 / 8.074308 (10.030330) | 13.755126 / 10.191392 (3.563734) | 0.143158 / 0.680424 (-0.537266) | 0.017147 / 0.534201 (-0.517054) | 0.337427 / 0.579283 (-0.241856) | 0.352270 / 0.434364 (-0.082094) | 0.383718 / 0.540337 (-0.156619) | 0.534973 / 1.386936 (-0.851963) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006039 / 0.011353 (-0.005314) | 0.003735 / 0.011008 (-0.007274) | 0.061954 / 0.038508 (0.023446) | 0.061786 / 0.023109 (0.038677) | 0.429420 / 0.275898 (0.153522) | 0.457629 / 0.323480 (0.134149) | 0.004748 / 0.007986 (-0.003237) | 0.002843 / 0.004328 (-0.001485) | 0.061811 / 0.004250 (0.057560) | 0.048740 / 0.037052 (0.011687) | 0.430066 / 0.258489 (0.171577) | 0.465971 / 0.293841 (0.172130) | 0.027577 / 0.128546 (-0.100969) | 0.007981 / 0.075646 (-0.067665) | 0.067580 / 0.419271 (-0.351692) | 0.042058 / 0.043533 (-0.001475) | 0.428412 / 0.255139 (0.173273) | 0.451054 / 0.283200 (0.167855) | 0.020850 / 0.141683 (-0.120833) | 1.453907 / 1.452155 (0.001752) | 1.509914 / 1.492716 (0.017197) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.237713 / 0.018006 (0.219707) | 0.418064 / 0.000490 (0.417575) | 0.006411 / 0.000200 (0.006211) | 0.000078 / 0.000054 (0.000024) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.024950 / 0.037411 (-0.012462) | 0.076806 / 0.014526 (0.062281) | 0.085237 / 0.176557 (-0.091320) | 0.137940 / 0.737135 (-0.599196) | 0.086266 / 0.296338 (-0.210072) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.418666 / 0.215209 (0.203457) | 4.160547 / 2.077655 (2.082893) | 2.135671 / 1.504120 (0.631551) | 1.964985 / 1.541195 (0.423790) | 2.009447 / 1.468490 (0.540957) | 0.501377 / 4.584777 (-4.083400) | 3.064293 / 3.745712 (-0.681419) | 2.827153 / 5.269862 (-2.442709) | 1.854698 / 4.565676 (-2.710978) | 0.057662 / 0.424275 (-0.366613) | 0.006829 / 0.007607 (-0.000778) | 0.496730 / 0.226044 (0.270686) | 4.964663 / 2.268929 (2.695735) | 2.583133 / 55.444624 (-52.861491) | 2.329700 / 6.876477 (-4.546776) | 2.415521 / 2.142072 (0.273449) | 0.591973 / 4.805227 (-4.213255) | 0.126801 / 6.500664 (-6.373863) | 0.062811 / 0.075469 (-0.012659) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.348575 / 1.841788 (-0.493212) | 18.282861 / 8.074308 (10.208553) | 13.734056 / 10.191392 (3.542664) | 0.154987 / 0.680424 (-0.525437) | 0.016996 / 0.534201 (-0.517205) | 0.335264 / 0.579283 (-0.244019) | 0.356907 / 0.434364 (-0.077456) | 0.399185 / 0.540337 (-0.141152) | 0.540209 / 1.386936 (-0.846727) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#887bef1217e0f4441d57bf0f4d1e806df12f2c50 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006768 / 0.011353 (-0.004585) | 0.004250 / 0.011008 (-0.006758) | 0.086780 / 0.038508 (0.048272) | 0.080872 / 0.023109 (0.057762) | 0.309281 / 0.275898 (0.033383) | 0.352293 / 0.323480 (0.028814) | 0.005604 / 0.007986 (-0.002382) | 0.003544 / 0.004328 (-0.000784) | 0.066910 / 0.004250 (0.062659) | 0.055568 / 0.037052 (0.018516) | 0.314931 / 0.258489 (0.056442) | 0.366026 / 0.293841 (0.072185) | 0.031247 / 0.128546 (-0.097300) | 0.008860 / 0.075646 (-0.066786) | 0.293210 / 0.419271 (-0.126061) | 0.052868 / 0.043533 (0.009335) | 0.316769 / 0.255139 (0.061630) | 0.352128 / 0.283200 (0.068929) | 0.025492 / 0.141683 (-0.116190) | 1.478379 / 1.452155 (0.026224) | 1.573652 / 1.492716 (0.080936) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.294975 / 0.018006 (0.276968) | 0.615093 / 0.000490 (0.614603) | 0.004279 / 0.000200 (0.004079) | 0.000102 / 0.000054 (0.000047) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031557 / 0.037411 (-0.005855) | 0.085026 / 0.014526 (0.070500) | 0.101221 / 0.176557 (-0.075336) | 0.157432 / 0.737135 (-0.579703) | 0.102350 / 0.296338 (-0.193988) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.384158 / 0.215209 (0.168949) | 3.826656 / 2.077655 (1.749001) | 1.873510 / 1.504120 (0.369390) | 1.721913 / 1.541195 (0.180718) | 1.848779 / 1.468490 (0.380289) | 0.485128 / 4.584777 (-4.099649) | 3.656660 / 3.745712 (-0.089052) | 3.441964 / 5.269862 (-1.827898) | 2.150611 / 4.565676 (-2.415066) | 0.056869 / 0.424275 (-0.367406) | 0.007382 / 0.007607 (-0.000225) | 0.458751 / 0.226044 (0.232707) | 4.585028 / 2.268929 (2.316099) | 2.439538 / 55.444624 (-53.005086) | 2.116959 / 6.876477 (-4.759518) | 2.459220 / 2.142072 (0.317147) | 0.580907 / 4.805227 (-4.224321) | 0.134502 / 6.500664 (-6.366162) | 0.062528 / 0.075469 (-0.012941) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.251006 / 1.841788 (-0.590782) | 20.755849 / 8.074308 (12.681541) | 14.456950 / 10.191392 (4.265558) | 0.167074 / 0.680424 (-0.513350) | 0.018482 / 0.534201 (-0.515719) | 0.395867 / 0.579283 (-0.183416) | 0.415620 / 0.434364 (-0.018744) | 0.462247 / 0.540337 (-0.078090) | 0.645762 / 1.386936 (-0.741174) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007050 / 0.011353 (-0.004303) | 0.004421 / 0.011008 (-0.006587) | 0.065312 / 0.038508 (0.026804) | 0.089790 / 0.023109 (0.066681) | 0.366318 / 0.275898 (0.090420) | 0.403542 / 0.323480 (0.080062) | 0.005695 / 0.007986 (-0.002290) | 0.003642 / 0.004328 (-0.000687) | 0.064540 / 0.004250 (0.060289) | 0.060933 / 0.037052 (0.023881) | 0.369004 / 0.258489 (0.110515) | 0.408056 / 0.293841 (0.114215) | 0.032124 / 0.128546 (-0.096422) | 0.008960 / 0.075646 (-0.066686) | 0.071267 / 0.419271 (-0.348005) | 0.049745 / 0.043533 (0.006212) | 0.367203 / 0.255139 (0.112064) | 0.383009 / 0.283200 (0.099809) | 0.025330 / 0.141683 (-0.116353) | 1.518290 / 1.452155 (0.066135) | 1.581738 / 1.492716 (0.089022) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.338281 / 0.018006 (0.320275) | 0.538195 / 0.000490 (0.537706) | 0.008498 / 0.000200 (0.008298) | 0.000121 / 0.000054 (0.000067) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.033279 / 0.037411 (-0.004133) | 0.093233 / 0.014526 (0.078707) | 0.106019 / 0.176557 (-0.070538) | 0.161262 / 0.737135 (-0.575874) | 0.109935 / 0.296338 (-0.186404) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.411563 / 0.215209 (0.196354) | 4.102149 / 2.077655 (2.024495) | 2.108513 / 1.504120 (0.604393) | 1.945344 / 1.541195 (0.404150) | 2.066964 / 1.468490 (0.598474) | 0.482771 / 4.584777 (-4.102006) | 3.659160 / 3.745712 (-0.086552) | 3.420833 / 5.269862 (-1.849029) | 2.147276 / 4.565676 (-2.418400) | 0.056957 / 0.424275 (-0.367318) | 0.007898 / 0.007607 (0.000290) | 0.482401 / 0.226044 (0.256357) | 4.821044 / 2.268929 (2.552115) | 2.567993 / 55.444624 (-52.876631) | 2.336165 / 6.876477 (-4.540312) | 2.545066 / 2.142072 (0.402994) | 0.580888 / 4.805227 (-4.224339) | 0.134092 / 6.500664 (-6.366572) | 0.062681 / 0.075469 (-0.012788) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.379124 / 1.841788 (-0.462664) | 21.627949 / 8.074308 (13.553641) | 15.064818 / 10.191392 (4.873426) | 0.169707 / 0.680424 (-0.510716) | 0.018671 / 0.534201 (-0.515530) | 0.400496 / 0.579283 (-0.178787) | 0.415542 / 0.434364 (-0.018822) | 0.484351 / 0.540337 (-0.055986) | 0.646046 / 1.386936 (-0.740890) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#53d55f33bfac9febb0c355e136f2847e5f3e3b53 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007113 / 0.011353 (-0.004240) | 0.004436 / 0.011008 (-0.006572) | 0.087422 / 0.038508 (0.048914) | 0.085996 / 0.023109 (0.062887) | 0.311772 / 0.275898 (0.035873) | 0.353281 / 0.323480 (0.029801) | 0.004562 / 0.007986 (-0.003423) | 0.003840 / 0.004328 (-0.000488) | 0.066500 / 0.004250 (0.062250) | 0.061293 / 0.037052 (0.024241) | 0.328840 / 0.258489 (0.070351) | 0.365587 / 0.293841 (0.071746) | 0.031802 / 0.128546 (-0.096744) | 0.008881 / 0.075646 (-0.066765) | 0.289671 / 0.419271 (-0.129601) | 0.053348 / 0.043533 (0.009816) | 0.307822 / 0.255139 (0.052683) | 0.342559 / 0.283200 (0.059360) | 0.025760 / 0.141683 (-0.115923) | 1.509944 / 1.452155 (0.057789) | 1.556634 / 1.492716 (0.063918) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.282036 / 0.018006 (0.264029) | 0.608350 / 0.000490 (0.607860) | 0.004843 / 0.000200 (0.004643) | 0.000108 / 0.000054 (0.000054) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029810 / 0.037411 (-0.007601) | 0.086215 / 0.014526 (0.071689) | 0.102200 / 0.176557 (-0.074356) | 0.158051 / 0.737135 (-0.579084) | 0.103083 / 0.296338 (-0.193255) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.392119 / 0.215209 (0.176910) | 3.895796 / 2.077655 (1.818141) | 1.921118 / 1.504120 (0.416998) | 1.754271 / 1.541195 (0.213076) | 1.880991 / 1.468490 (0.412501) | 0.481158 / 4.584777 (-4.103618) | 3.609210 / 3.745712 (-0.136502) | 3.412018 / 5.269862 (-1.857843) | 2.131710 / 4.565676 (-2.433967) | 0.057122 / 0.424275 (-0.367153) | 0.007444 / 0.007607 (-0.000163) | 0.468880 / 0.226044 (0.242835) | 4.682441 / 2.268929 (2.413512) | 2.505613 / 55.444624 (-52.939012) | 2.149655 / 6.876477 (-4.726822) | 2.465904 / 2.142072 (0.323832) | 0.578877 / 4.805227 (-4.226350) | 0.133504 / 6.500664 (-6.367160) | 0.061422 / 0.075469 (-0.014047) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.269395 / 1.841788 (-0.572393) | 21.107558 / 8.074308 (13.033250) | 15.318502 / 10.191392 (5.127110) | 0.165273 / 0.680424 (-0.515151) | 0.018783 / 0.534201 (-0.515418) | 0.396259 / 0.579283 (-0.183024) | 0.412907 / 0.434364 (-0.021457) | 0.465723 / 0.540337 (-0.074615) | 0.638414 / 1.386936 (-0.748522) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007083 / 0.011353 (-0.004270) | 0.004216 / 0.011008 (-0.006793) | 0.065362 / 0.038508 (0.026854) | 0.095454 / 0.023109 (0.072345) | 0.364220 / 0.275898 (0.088322) | 0.417650 / 0.323480 (0.094170) | 0.006114 / 0.007986 (-0.001872) | 0.003577 / 0.004328 (-0.000751) | 0.064830 / 0.004250 (0.060579) | 0.062535 / 0.037052 (0.025483) | 0.381844 / 0.258489 (0.123355) | 0.418996 / 0.293841 (0.125155) | 0.031386 / 0.128546 (-0.097160) | 0.008913 / 0.075646 (-0.066733) | 0.070860 / 0.419271 (-0.348411) | 0.049132 / 0.043533 (0.005599) | 0.360406 / 0.255139 (0.105267) | 0.392407 / 0.283200 (0.109207) | 0.024611 / 0.141683 (-0.117072) | 1.509051 / 1.452155 (0.056896) | 1.570288 / 1.492716 (0.077572) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.368611 / 0.018006 (0.350605) | 0.537587 / 0.000490 (0.537098) | 0.028056 / 0.000200 (0.027856) | 0.000317 / 0.000054 (0.000262) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031570 / 0.037411 (-0.005841) | 0.088985 / 0.014526 (0.074460) | 0.105268 / 0.176557 (-0.071288) | 0.156724 / 0.737135 (-0.580412) | 0.105266 / 0.296338 (-0.191073) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.413861 / 0.215209 (0.198652) | 4.127001 / 2.077655 (2.049347) | 2.112114 / 1.504120 (0.607994) | 1.945200 / 1.541195 (0.404005) | 2.083031 / 1.468490 (0.614540) | 0.488086 / 4.584777 (-4.096691) | 3.565584 / 3.745712 (-0.180128) | 3.380782 / 5.269862 (-1.889079) | 2.103481 / 4.565676 (-2.462195) | 0.058203 / 0.424275 (-0.366072) | 0.007996 / 0.007607 (0.000389) | 0.487986 / 0.226044 (0.261941) | 4.871023 / 2.268929 (2.602095) | 2.584632 / 55.444624 (-52.859992) | 2.240103 / 6.876477 (-4.636374) | 2.555165 / 2.142072 (0.413092) | 0.591950 / 4.805227 (-4.213278) | 0.134919 / 6.500664 (-6.365745) | 0.062868 / 0.075469 (-0.012601) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.369731 / 1.841788 (-0.472057) | 21.497888 / 8.074308 (13.423580) | 14.555054 / 10.191392 (4.363662) | 0.168768 / 0.680424 (-0.511656) | 0.018837 / 0.534201 (-0.515364) | 0.394512 / 0.579283 (-0.184771) | 0.405459 / 0.434364 (-0.028905) | 0.475479 / 0.540337 (-0.064858) | 0.631994 / 1.386936 (-0.754942) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#53d55f33bfac9febb0c355e136f2847e5f3e3b53 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009072 / 0.011353 (-0.002280) | 0.004894 / 0.011008 (-0.006114) | 0.108790 / 0.038508 (0.070282) | 0.081783 / 0.023109 (0.058674) | 0.381963 / 0.275898 (0.106064) | 0.450700 / 0.323480 (0.127220) | 0.006961 / 0.007986 (-0.001025) | 0.004035 / 0.004328 (-0.000293) | 0.081420 / 0.004250 (0.077169) | 0.058029 / 0.037052 (0.020976) | 0.437453 / 0.258489 (0.178964) | 0.472607 / 0.293841 (0.178766) | 0.048663 / 0.128546 (-0.079884) | 0.013512 / 0.075646 (-0.062134) | 0.406009 / 0.419271 (-0.013262) | 0.067616 / 0.043533 (0.024084) | 0.383641 / 0.255139 (0.128502) | 0.456734 / 0.283200 (0.173534) | 0.033391 / 0.141683 (-0.108292) | 1.753529 / 1.452155 (0.301375) | 1.859831 / 1.492716 (0.367115) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.215128 / 0.018006 (0.197122) | 0.538261 / 0.000490 (0.537771) | 0.005430 / 0.000200 (0.005230) | 0.000124 / 0.000054 (0.000069) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032664 / 0.037411 (-0.004748) | 0.093465 / 0.014526 (0.078939) | 0.106637 / 0.176557 (-0.069919) | 0.173642 / 0.737135 (-0.563494) | 0.113944 / 0.296338 (-0.182394) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.629212 / 0.215209 (0.414003) | 6.116729 / 2.077655 (4.039075) | 2.818000 / 1.504120 (1.313880) | 2.515317 / 1.541195 (0.974122) | 2.466588 / 1.468490 (0.998098) | 0.850815 / 4.584777 (-3.733962) | 5.051292 / 3.745712 (1.305579) | 4.472138 / 5.269862 (-0.797724) | 2.968317 / 4.565676 (-1.597360) | 0.100173 / 0.424275 (-0.324102) | 0.008407 / 0.007607 (0.000800) | 0.743972 / 0.226044 (0.517928) | 7.397619 / 2.268929 (5.128690) | 3.596681 / 55.444624 (-51.847943) | 2.854674 / 6.876477 (-4.021803) | 3.114274 / 2.142072 (0.972201) | 1.064879 / 4.805227 (-3.740348) | 0.215981 / 6.500664 (-6.284683) | 0.078159 / 0.075469 (0.002690) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.543291 / 1.841788 (-0.298497) | 23.244641 / 8.074308 (15.170333) | 20.784610 / 10.191392 (10.593218) | 0.222002 / 0.680424 (-0.458422) | 0.028584 / 0.534201 (-0.505617) | 0.478563 / 0.579283 (-0.100720) | 0.556101 / 0.434364 (0.121737) | 0.547446 / 0.540337 (0.007109) | 0.764318 / 1.386936 (-0.622618) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008651 / 0.011353 (-0.002702) | 0.004925 / 0.011008 (-0.006083) | 0.078995 / 0.038508 (0.040487) | 0.092878 / 0.023109 (0.069769) | 0.485615 / 0.275898 (0.209717) | 0.532157 / 0.323480 (0.208677) | 0.008228 / 0.007986 (0.000243) | 0.004777 / 0.004328 (0.000449) | 0.076892 / 0.004250 (0.072642) | 0.066905 / 0.037052 (0.029853) | 0.465497 / 0.258489 (0.207008) | 0.520153 / 0.293841 (0.226312) | 0.047357 / 0.128546 (-0.081189) | 0.016870 / 0.075646 (-0.058776) | 0.090481 / 0.419271 (-0.328791) | 0.060774 / 0.043533 (0.017241) | 0.474368 / 0.255139 (0.219229) | 0.503981 / 0.283200 (0.220781) | 0.036025 / 0.141683 (-0.105658) | 1.769939 / 1.452155 (0.317784) | 1.851518 / 1.492716 (0.358802) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.265947 / 0.018006 (0.247941) | 0.532317 / 0.000490 (0.531828) | 0.004997 / 0.000200 (0.004797) | 0.000130 / 0.000054 (0.000076) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.034112 / 0.037411 (-0.003299) | 0.102290 / 0.014526 (0.087764) | 0.109989 / 0.176557 (-0.066567) | 0.182813 / 0.737135 (-0.554323) | 0.111774 / 0.296338 (-0.184565) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.584893 / 0.215209 (0.369684) | 6.138505 / 2.077655 (4.060850) | 2.925761 / 1.504120 (1.421641) | 2.607320 / 1.541195 (1.066125) | 2.655827 / 1.468490 (1.187337) | 0.871140 / 4.584777 (-3.713637) | 5.051171 / 3.745712 (1.305459) | 4.708008 / 5.269862 (-0.561854) | 3.027485 / 4.565676 (-1.538191) | 0.100970 / 0.424275 (-0.323305) | 0.009640 / 0.007607 (0.002033) | 0.747818 / 0.226044 (0.521774) | 7.539930 / 2.268929 (5.271001) | 3.611693 / 55.444624 (-51.832931) | 2.924087 / 6.876477 (-3.952390) | 3.141993 / 2.142072 (0.999920) | 1.062921 / 4.805227 (-3.742306) | 0.213185 / 6.500664 (-6.287479) | 0.077146 / 0.075469 (0.001677) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.669182 / 1.841788 (-0.172606) | 23.810242 / 8.074308 (15.735934) | 21.220649 / 10.191392 (11.029257) | 0.212639 / 0.680424 (-0.467785) | 0.026705 / 0.534201 (-0.507496) | 0.469231 / 0.579283 (-0.110053) | 0.551672 / 0.434364 (0.117308) | 0.575043 / 0.540337 (0.034706) | 0.767511 / 1.386936 (-0.619425) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#53d55f33bfac9febb0c355e136f2847e5f3e3b53 \"CML watermark\")\n" ]

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[ "Hi @TomasAndersonFang,\r\n\r\nHave you tried instead to use `torch_compile` in `transformers.TrainingArguments`? https://huggingface.co/docs/transformers/v4.31.0/en/main_classes/trainer#transformers.TrainingArguments.torch_compile", "> \r\n\r\nI tried this and got the following error:\r\n\r\n```\r\nTraceback (most recent call last):\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py\", line 324, in _compile\r\n out_code = transform_code_object(code, transform)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/bytecode_transformation.py\", line 445, in transform_code_object\r\n transformations(instructions, code_options)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py\", line 311, in transform\r\n tracer.run()\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py\", line 1726, in run\r\n super().run()\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py\", line 576, in run\r\n and self.step()\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py\", line 540, in step\r\n getattr(self, inst.opname)(inst)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/symbolic_convert.py\", line 1030, in LOAD_ATTR\r\n result = BuiltinVariable(getattr).call_function(\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/variables/builtin.py\", line 566, in call_function\r\n result = handler(tx, *args, **kwargs)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/variables/builtin.py\", line 931, in call_getattr\r\n return obj.var_getattr(tx, name).add_options(options)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/variables/nn_module.py\", line 124, in var_getattr\r\n subobj = inspect.getattr_static(base, name)\r\n File \"/apps/Arch/software/Python/3.10.8-GCCcore-12.2.0/lib/python3.10/inspect.py\", line 1777, in getattr_static\r\n raise AttributeError(attr)\r\nAttributeError: config\r\n\r\nfrom user code:\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/peft/peft_model.py\", line 909, in forward\r\n if self.base_model.config.model_type == \"mpt\":\r\n\r\nSet torch._dynamo.config.verbose=True for more information\r\n\r\n\r\nYou can suppress this exception and fall back to eager by setting:\r\n torch._dynamo.config.suppress_errors = True\r\n\r\n\r\nThe above exception was the direct cause of the following exception:\r\n\r\nTraceback (most recent call last):\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/llm-copt/fine-tune/falcon/falcon_sft.py\", line 228, in <module>\r\n main()\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/llm-copt/fine-tune/falcon/falcon_sft.py\", line 221, in main\r\n trainer.train()\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/transformers/trainer.py\", line 1539, in train\r\n return inner_training_loop(\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/transformers/trainer.py\", line 1809, in _inner_training_loop\r\n tr_loss_step = self.training_step(model, inputs)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/transformers/trainer.py\", line 2654, in training_step\r\n loss = self.compute_loss(model, inputs)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/transformers/trainer.py\", line 2679, in compute_loss\r\n outputs = model(**inputs)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/nn/modules/module.py\", line 1501, in _call_impl\r\n return forward_call(*args, **kwargs)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/eval_frame.py\", line 82, in forward\r\n return self.dynamo_ctx(self._orig_mod.forward)(*args, **kwargs)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/eval_frame.py\", line 209, in _fn\r\n return fn(*args, **kwargs)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/accelerate/utils/operations.py\", line 581, in forward\r\n return model_forward(*args, **kwargs)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/accelerate/utils/operations.py\", line 569, in __call__\r\n return convert_to_fp32(self.model_forward(*args, **kwargs))\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/amp/autocast_mode.py\", line 14, in decorate_autocast\r\n return func(*args, **kwargs)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/eval_frame.py\", line 337, in catch_errors\r\n return callback(frame, cache_size, hooks)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py\", line 404, in _convert_frame\r\n result = inner_convert(frame, cache_size, hooks)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py\", line 104, in _fn\r\n return fn(*args, **kwargs)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py\", line 262, in _convert_frame_assert\r\n return _compile(\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/utils.py\", line 163, in time_wrapper\r\n r = func(*args, **kwargs)\r\n File \"/cephyr/NOBACKUP/groups/snic2021-23-24/LLM4-CodeOpt/env/lib/python3.10/site-packages/torch/_dynamo/convert_frame.py\", line 394, in _compile\r\n raise InternalTorchDynamoError() from e\r\ntorch._dynamo.exc.InternalTorchDynamoError\r\n```", "Hi @TomasAndersonFang,\r\n\r\nI guess in this case it may be an issue with `transformers` (or `PyTorch`). I would recommend you open an issue on their repo.", "@albertvillanova Thanks for your recommendation. I'll do it", "@TomasAndersonFang were you able to find a solution to this issue? I would highly appreciate any help. \r\n\r\nThanks!" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006103 / 0.011353 (-0.005250) | 0.003588 / 0.011008 (-0.007420) | 0.080335 / 0.038508 (0.041827) | 0.059634 / 0.023109 (0.036525) | 0.356093 / 0.275898 (0.080195) | 0.407376 / 0.323480 (0.083896) | 0.005343 / 0.007986 (-0.002643) | 0.002928 / 0.004328 (-0.001400) | 0.062580 / 0.004250 (0.058330) | 0.047544 / 0.037052 (0.010491) | 0.364305 / 0.258489 (0.105816) | 0.421463 / 0.293841 (0.127623) | 0.027249 / 0.128546 (-0.101298) | 0.008010 / 0.075646 (-0.067636) | 0.262543 / 0.419271 (-0.156728) | 0.044978 / 0.043533 (0.001445) | 0.339344 / 0.255139 (0.084205) | 0.395288 / 0.283200 (0.112088) | 0.021425 / 0.141683 (-0.120258) | 1.439767 / 1.452155 (-0.012387) | 1.498081 / 1.492716 (0.005365) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.196976 / 0.018006 (0.178970) | 0.435383 / 0.000490 (0.434893) | 0.004559 / 0.000200 (0.004359) | 0.000071 / 0.000054 (0.000016) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023653 / 0.037411 (-0.013759) | 0.072944 / 0.014526 (0.058418) | 0.083651 / 0.176557 (-0.092906) | 0.144590 / 0.737135 (-0.592545) | 0.084844 / 0.296338 (-0.211494) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.398752 / 0.215209 (0.183543) | 3.959539 / 2.077655 (1.881884) | 1.935277 / 1.504120 (0.431157) | 1.751994 / 1.541195 (0.210799) | 1.828386 / 1.468490 (0.359896) | 0.500492 / 4.584777 (-4.084284) | 3.086630 / 3.745712 (-0.659082) | 2.851664 / 5.269862 (-2.418198) | 1.869792 / 4.565676 (-2.695885) | 0.058509 / 0.424275 (-0.365766) | 0.006500 / 0.007607 (-0.001107) | 0.467468 / 0.226044 (0.241424) | 4.686168 / 2.268929 (2.417240) | 2.427632 / 55.444624 (-53.016993) | 2.193194 / 6.876477 (-4.683283) | 2.408574 / 2.142072 (0.266501) | 0.592173 / 4.805227 (-4.213054) | 0.125381 / 6.500664 (-6.375283) | 0.060679 / 0.075469 (-0.014790) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.236066 / 1.841788 (-0.605722) | 18.591689 / 8.074308 (10.517381) | 14.138774 / 10.191392 (3.947382) | 0.147455 / 0.680424 (-0.532968) | 0.016921 / 0.534201 (-0.517280) | 0.328129 / 0.579283 (-0.251154) | 0.348872 / 0.434364 (-0.085491) | 0.380311 / 0.540337 (-0.160026) | 0.532901 / 1.386936 (-0.854035) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005914 / 0.011353 (-0.005438) | 0.003614 / 0.011008 (-0.007394) | 0.062857 / 0.038508 (0.024349) | 0.060633 / 0.023109 (0.037524) | 0.419684 / 0.275898 (0.143786) | 0.449025 / 0.323480 (0.125546) | 0.004595 / 0.007986 (-0.003391) | 0.002861 / 0.004328 (-0.001467) | 0.063253 / 0.004250 (0.059003) | 0.048770 / 0.037052 (0.011718) | 0.419838 / 0.258489 (0.161349) | 0.465183 / 0.293841 (0.171342) | 0.027350 / 0.128546 (-0.101196) | 0.008065 / 0.075646 (-0.067582) | 0.068321 / 0.419271 (-0.350950) | 0.041083 / 0.043533 (-0.002449) | 0.400831 / 0.255139 (0.145692) | 0.449286 / 0.283200 (0.166086) | 0.020472 / 0.141683 (-0.121210) | 1.437215 / 1.452155 (-0.014940) | 1.503679 / 1.492716 (0.010963) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.230764 / 0.018006 (0.212758) | 0.420774 / 0.000490 (0.420285) | 0.004012 / 0.000200 (0.003812) | 0.000069 / 0.000054 (0.000014) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.026009 / 0.037411 (-0.011402) | 0.077943 / 0.014526 (0.063417) | 0.087281 / 0.176557 (-0.089276) | 0.139422 / 0.737135 (-0.597713) | 0.089090 / 0.296338 (-0.207248) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.417298 / 0.215209 (0.202088) | 4.152303 / 2.077655 (2.074648) | 2.179996 / 1.504120 (0.675877) | 2.020619 / 1.541195 (0.479424) | 2.085241 / 1.468490 (0.616751) | 0.501111 / 4.584777 (-4.083666) | 3.079849 / 3.745712 (-0.665863) | 2.820607 / 5.269862 (-2.449255) | 1.863988 / 4.565676 (-2.701688) | 0.057662 / 0.424275 (-0.366613) | 0.006778 / 0.007607 (-0.000830) | 0.498661 / 0.226044 (0.272616) | 4.986503 / 2.268929 (2.717574) | 2.620676 / 55.444624 (-52.823949) | 2.297546 / 6.876477 (-4.578931) | 2.458148 / 2.142072 (0.316075) | 0.599490 / 4.805227 (-4.205738) | 0.125102 / 6.500664 (-6.375562) | 0.061411 / 0.075469 (-0.014059) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.323816 / 1.841788 (-0.517971) | 18.462614 / 8.074308 (10.388306) | 13.845826 / 10.191392 (3.654434) | 0.146115 / 0.680424 (-0.534309) | 0.016862 / 0.534201 (-0.517339) | 0.335449 / 0.579283 (-0.243834) | 0.343792 / 0.434364 (-0.090572) | 0.394068 / 0.540337 (-0.146269) | 0.536378 / 1.386936 (-0.850558) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#de3f00368c9236e9410821f5fddb95d6069883c1 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006825 / 0.011353 (-0.004527) | 0.004005 / 0.011008 (-0.007003) | 0.085504 / 0.038508 (0.046996) | 0.077252 / 0.023109 (0.054143) | 0.351891 / 0.275898 (0.075993) | 0.383404 / 0.323480 (0.059924) | 0.004153 / 0.007986 (-0.003833) | 0.003344 / 0.004328 (-0.000985) | 0.064936 / 0.004250 (0.060685) | 0.057653 / 0.037052 (0.020601) | 0.368155 / 0.258489 (0.109666) | 0.406122 / 0.293841 (0.112282) | 0.032049 / 0.128546 (-0.096497) | 0.008698 / 0.075646 (-0.066949) | 0.292394 / 0.419271 (-0.126878) | 0.053634 / 0.043533 (0.010101) | 0.358273 / 0.255139 (0.103134) | 0.378441 / 0.283200 (0.095242) | 0.026928 / 0.141683 (-0.114755) | 1.458718 / 1.452155 (0.006563) | 1.536231 / 1.492716 (0.043515) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.213956 / 0.018006 (0.195950) | 0.458620 / 0.000490 (0.458130) | 0.002718 / 0.000200 (0.002519) | 0.000078 / 0.000054 (0.000023) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.027870 / 0.037411 (-0.009541) | 0.083922 / 0.014526 (0.069396) | 0.152056 / 0.176557 (-0.024501) | 0.151584 / 0.737135 (-0.585552) | 0.095698 / 0.296338 (-0.200641) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.407762 / 0.215209 (0.192553) | 4.074324 / 2.077655 (1.996669) | 2.089929 / 1.504120 (0.585809) | 1.920024 / 1.541195 (0.378829) | 2.013410 / 1.468490 (0.544920) | 0.486056 / 4.584777 (-4.098721) | 3.656869 / 3.745712 (-0.088843) | 3.304008 / 5.269862 (-1.965854) | 2.074363 / 4.565676 (-2.491313) | 0.057293 / 0.424275 (-0.366982) | 0.007240 / 0.007607 (-0.000367) | 0.482696 / 0.226044 (0.256652) | 4.833251 / 2.268929 (2.564322) | 2.570391 / 55.444624 (-52.874233) | 2.220619 / 6.876477 (-4.655857) | 2.426316 / 2.142072 (0.284243) | 0.584811 / 4.805227 (-4.220416) | 0.134907 / 6.500664 (-6.365757) | 0.061115 / 0.075469 (-0.014354) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.251969 / 1.841788 (-0.589818) | 19.601611 / 8.074308 (11.527303) | 14.190217 / 10.191392 (3.998825) | 0.166296 / 0.680424 (-0.514128) | 0.018334 / 0.534201 (-0.515867) | 0.395172 / 0.579283 (-0.184111) | 0.410440 / 0.434364 (-0.023924) | 0.462263 / 0.540337 (-0.078074) | 0.645504 / 1.386936 (-0.741432) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006991 / 0.011353 (-0.004362) | 0.004084 / 0.011008 (-0.006924) | 0.065208 / 0.038508 (0.026700) | 0.077809 / 0.023109 (0.054699) | 0.386472 / 0.275898 (0.110574) | 0.418686 / 0.323480 (0.095206) | 0.005346 / 0.007986 (-0.002640) | 0.003416 / 0.004328 (-0.000912) | 0.066209 / 0.004250 (0.061958) | 0.057517 / 0.037052 (0.020465) | 0.407684 / 0.258489 (0.149195) | 0.425438 / 0.293841 (0.131597) | 0.032166 / 0.128546 (-0.096380) | 0.008662 / 0.075646 (-0.066985) | 0.071712 / 0.419271 (-0.347560) | 0.049764 / 0.043533 (0.006231) | 0.394882 / 0.255139 (0.139743) | 0.403589 / 0.283200 (0.120389) | 0.023688 / 0.141683 (-0.117995) | 1.468488 / 1.452155 (0.016334) | 1.533118 / 1.492716 (0.040401) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.252949 / 0.018006 (0.234943) | 0.447355 / 0.000490 (0.446865) | 0.011721 / 0.000200 (0.011521) | 0.000107 / 0.000054 (0.000052) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031444 / 0.037411 (-0.005968) | 0.089390 / 0.014526 (0.074864) | 0.100103 / 0.176557 (-0.076454) | 0.153301 / 0.737135 (-0.583835) | 0.101336 / 0.296338 (-0.195003) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.408574 / 0.215209 (0.193365) | 4.073135 / 2.077655 (1.995480) | 2.086550 / 1.504120 (0.582430) | 1.930651 / 1.541195 (0.389457) | 2.013548 / 1.468490 (0.545058) | 0.477235 / 4.584777 (-4.107542) | 3.547545 / 3.745712 (-0.198167) | 3.321957 / 5.269862 (-1.947905) | 2.057705 / 4.565676 (-2.507971) | 0.056730 / 0.424275 (-0.367545) | 0.007882 / 0.007607 (0.000275) | 0.487297 / 0.226044 (0.261253) | 4.874184 / 2.268929 (2.605255) | 2.631129 / 55.444624 (-52.813496) | 2.235755 / 6.876477 (-4.640722) | 2.463329 / 2.142072 (0.321257) | 0.578308 / 4.805227 (-4.226919) | 0.132726 / 6.500664 (-6.367938) | 0.064883 / 0.075469 (-0.010586) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.347564 / 1.841788 (-0.494223) | 20.192973 / 8.074308 (12.118665) | 14.563553 / 10.191392 (4.372161) | 0.168244 / 0.680424 (-0.512180) | 0.018638 / 0.534201 (-0.515563) | 0.394789 / 0.579283 (-0.184494) | 0.419677 / 0.434364 (-0.014687) | 0.480274 / 0.540337 (-0.060063) | 0.641204 / 1.386936 (-0.745732) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#9c7a0d56b60bf700d6a491fa30eaf66500969315 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005939 / 0.011353 (-0.005413) | 0.003457 / 0.011008 (-0.007551) | 0.079985 / 0.038508 (0.041477) | 0.056492 / 0.023109 (0.033383) | 0.312356 / 0.275898 (0.036458) | 0.354038 / 0.323480 (0.030558) | 0.004551 / 0.007986 (-0.003435) | 0.002828 / 0.004328 (-0.001501) | 0.062369 / 0.004250 (0.058119) | 0.044712 / 0.037052 (0.007660) | 0.318244 / 0.258489 (0.059755) | 0.361977 / 0.293841 (0.068136) | 0.026460 / 0.128546 (-0.102086) | 0.007928 / 0.075646 (-0.067719) | 0.261378 / 0.419271 (-0.157894) | 0.044209 / 0.043533 (0.000676) | 0.313931 / 0.255139 (0.058792) | 0.339553 / 0.283200 (0.056354) | 0.019776 / 0.141683 (-0.121907) | 1.443126 / 1.452155 (-0.009029) | 1.508149 / 1.492716 (0.015432) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.183801 / 0.018006 (0.165795) | 0.427967 / 0.000490 (0.427477) | 0.002028 / 0.000200 (0.001828) | 0.000062 / 0.000054 (0.000007) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023697 / 0.037411 (-0.013715) | 0.072128 / 0.014526 (0.057602) | 0.083701 / 0.176557 (-0.092855) | 0.142821 / 0.737135 (-0.594315) | 0.082276 / 0.296338 (-0.214063) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.434427 / 0.215209 (0.219218) | 4.325962 / 2.077655 (2.248308) | 2.277115 / 1.504120 (0.772995) | 2.093736 / 1.541195 (0.552541) | 2.127984 / 1.468490 (0.659494) | 0.502336 / 4.584777 (-4.082441) | 3.023243 / 3.745712 (-0.722469) | 2.805154 / 5.269862 (-2.464708) | 1.821273 / 4.565676 (-2.744403) | 0.057480 / 0.424275 (-0.366795) | 0.006365 / 0.007607 (-0.001242) | 0.508258 / 0.226044 (0.282213) | 5.087950 / 2.268929 (2.819022) | 2.705029 / 55.444624 (-52.739596) | 2.378392 / 6.876477 (-4.498085) | 2.515380 / 2.142072 (0.373307) | 0.589283 / 4.805227 (-4.215944) | 0.125719 / 6.500664 (-6.374945) | 0.061074 / 0.075469 (-0.014395) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.221895 / 1.841788 (-0.619893) | 18.025917 / 8.074308 (9.951609) | 13.556901 / 10.191392 (3.365509) | 0.142614 / 0.680424 (-0.537809) | 0.016731 / 0.534201 (-0.517469) | 0.328374 / 0.579283 (-0.250910) | 0.342553 / 0.434364 (-0.091811) | 0.374502 / 0.540337 (-0.165836) | 0.534173 / 1.386936 (-0.852763) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005817 / 0.011353 (-0.005536) | 0.003500 / 0.011008 (-0.007509) | 0.062240 / 0.038508 (0.023732) | 0.058128 / 0.023109 (0.035019) | 0.424014 / 0.275898 (0.148116) | 0.468453 / 0.323480 (0.144973) | 0.004641 / 0.007986 (-0.003345) | 0.002821 / 0.004328 (-0.001508) | 0.062180 / 0.004250 (0.057930) | 0.047578 / 0.037052 (0.010526) | 0.427367 / 0.258489 (0.168878) | 0.467889 / 0.293841 (0.174048) | 0.027144 / 0.128546 (-0.101403) | 0.007969 / 0.075646 (-0.067678) | 0.067764 / 0.419271 (-0.351508) | 0.040719 / 0.043533 (-0.002814) | 0.423663 / 0.255139 (0.168524) | 0.458556 / 0.283200 (0.175356) | 0.019196 / 0.141683 (-0.122487) | 1.471546 / 1.452155 (0.019392) | 1.547541 / 1.492716 (0.054825) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.228777 / 0.018006 (0.210770) | 0.406663 / 0.000490 (0.406173) | 0.003688 / 0.000200 (0.003488) | 0.000075 / 0.000054 (0.000021) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025494 / 0.037411 (-0.011917) | 0.076339 / 0.014526 (0.061814) | 0.084233 / 0.176557 (-0.092324) | 0.136995 / 0.737135 (-0.600140) | 0.085443 / 0.296338 (-0.210895) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.420441 / 0.215209 (0.205232) | 4.187018 / 2.077655 (2.109363) | 2.142139 / 1.504120 (0.638019) | 1.974530 / 1.541195 (0.433335) | 2.027321 / 1.468490 (0.558831) | 0.498116 / 4.584777 (-4.086661) | 2.988514 / 3.745712 (-0.757198) | 2.782046 / 5.269862 (-2.487816) | 1.821725 / 4.565676 (-2.743951) | 0.057711 / 0.424275 (-0.366564) | 0.006664 / 0.007607 (-0.000944) | 0.491015 / 0.226044 (0.264971) | 4.921037 / 2.268929 (2.652108) | 2.574964 / 55.444624 (-52.869661) | 2.251703 / 6.876477 (-4.624774) | 2.361154 / 2.142072 (0.219082) | 0.593362 / 4.805227 (-4.211865) | 0.126107 / 6.500664 (-6.374557) | 0.061840 / 0.075469 (-0.013630) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.327459 / 1.841788 (-0.514328) | 18.062960 / 8.074308 (9.988652) | 13.669253 / 10.191392 (3.477861) | 0.130719 / 0.680424 (-0.549705) | 0.016564 / 0.534201 (-0.517637) | 0.335821 / 0.579283 (-0.243462) | 0.341691 / 0.434364 (-0.092673) | 0.392651 / 0.540337 (-0.147686) | 0.529650 / 1.386936 (-0.857286) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#c65806b0542996e56825ab46a3ce8f9c07ab0df3 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009625 / 0.011353 (-0.001728) | 0.005354 / 0.011008 (-0.005654) | 0.114350 / 0.038508 (0.075842) | 0.086637 / 0.023109 (0.063528) | 0.465381 / 0.275898 (0.189483) | 0.490411 / 0.323480 (0.166931) | 0.006575 / 0.007986 (-0.001411) | 0.004287 / 0.004328 (-0.000041) | 0.093134 / 0.004250 (0.088884) | 0.060209 / 0.037052 (0.023156) | 0.459570 / 0.258489 (0.201080) | 0.523320 / 0.293841 (0.229479) | 0.047943 / 0.128546 (-0.080603) | 0.014764 / 0.075646 (-0.060882) | 0.383887 / 0.419271 (-0.035384) | 0.069864 / 0.043533 (0.026331) | 0.469122 / 0.255139 (0.213983) | 0.509953 / 0.283200 (0.226753) | 0.037800 / 0.141683 (-0.103883) | 1.877589 / 1.452155 (0.425434) | 2.014913 / 1.492716 (0.522197) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.309146 / 0.018006 (0.291140) | 0.644390 / 0.000490 (0.643900) | 0.005017 / 0.000200 (0.004817) | 0.000102 / 0.000054 (0.000048) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032964 / 0.037411 (-0.004447) | 0.103236 / 0.014526 (0.088711) | 0.119950 / 0.176557 (-0.056607) | 0.207674 / 0.737135 (-0.529461) | 0.117278 / 0.296338 (-0.179060) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.605464 / 0.215209 (0.390255) | 6.027805 / 2.077655 (3.950150) | 2.719725 / 1.504120 (1.215605) | 2.262752 / 1.541195 (0.721558) | 2.330310 / 1.468490 (0.861820) | 0.862537 / 4.584777 (-3.722240) | 5.347080 / 3.745712 (1.601368) | 4.792170 / 5.269862 (-0.477691) | 3.103694 / 4.565676 (-1.461983) | 0.103646 / 0.424275 (-0.320629) | 0.009411 / 0.007607 (0.001804) | 0.743052 / 0.226044 (0.517008) | 7.289684 / 2.268929 (5.020755) | 3.436530 / 55.444624 (-52.008094) | 2.722440 / 6.876477 (-4.154036) | 2.952380 / 2.142072 (0.810308) | 1.047688 / 4.805227 (-3.757539) | 0.212724 / 6.500664 (-6.287940) | 0.081473 / 0.075469 (0.006004) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.714437 / 1.841788 (-0.127351) | 24.384330 / 8.074308 (16.310022) | 22.444162 / 10.191392 (12.252770) | 0.226264 / 0.680424 (-0.454160) | 0.030530 / 0.534201 (-0.503671) | 0.473999 / 0.579283 (-0.105284) | 0.575005 / 0.434364 (0.140641) | 0.542789 / 0.540337 (0.002451) | 0.776079 / 1.386936 (-0.610857) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009366 / 0.011353 (-0.001987) | 0.005239 / 0.011008 (-0.005769) | 0.085116 / 0.038508 (0.046608) | 0.089600 / 0.023109 (0.066491) | 0.485778 / 0.275898 (0.209880) | 0.540054 / 0.323480 (0.216574) | 0.006290 / 0.007986 (-0.001695) | 0.004054 / 0.004328 (-0.000274) | 0.083535 / 0.004250 (0.079284) | 0.067200 / 0.037052 (0.030148) | 0.519520 / 0.258489 (0.261031) | 0.544049 / 0.293841 (0.250208) | 0.054300 / 0.128546 (-0.074246) | 0.013650 / 0.075646 (-0.061996) | 0.102515 / 0.419271 (-0.316757) | 0.063054 / 0.043533 (0.019522) | 0.491724 / 0.255139 (0.236585) | 0.547498 / 0.283200 (0.264298) | 0.039266 / 0.141683 (-0.102416) | 1.801226 / 1.452155 (0.349071) | 1.861778 / 1.492716 (0.369061) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.313009 / 0.018006 (0.295003) | 0.587695 / 0.000490 (0.587205) | 0.004972 / 0.000200 (0.004772) | 0.000110 / 0.000054 (0.000055) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029230 / 0.037411 (-0.008181) | 0.091154 / 0.014526 (0.076628) | 0.110505 / 0.176557 (-0.066052) | 0.164204 / 0.737135 (-0.572932) | 0.107812 / 0.296338 (-0.188526) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.610535 / 0.215209 (0.395326) | 6.162517 / 2.077655 (4.084862) | 2.866718 / 1.504120 (1.362598) | 2.542412 / 1.541195 (1.001218) | 2.584136 / 1.468490 (1.115645) | 0.874319 / 4.584777 (-3.710458) | 5.257184 / 3.745712 (1.511472) | 4.705840 / 5.269862 (-0.564022) | 2.971708 / 4.565676 (-1.593969) | 0.099026 / 0.424275 (-0.325249) | 0.009142 / 0.007607 (0.001535) | 0.728660 / 0.226044 (0.502615) | 7.560922 / 2.268929 (5.291994) | 3.439521 / 55.444624 (-52.005103) | 2.854730 / 6.876477 (-4.021746) | 3.088951 / 2.142072 (0.946879) | 0.973621 / 4.805227 (-3.831606) | 0.209792 / 6.500664 (-6.290872) | 0.081107 / 0.075469 (0.005638) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.716809 / 1.841788 (-0.124978) | 24.386927 / 8.074308 (16.312619) | 20.715524 / 10.191392 (10.524131) | 0.260831 / 0.680424 (-0.419592) | 0.030701 / 0.534201 (-0.503500) | 0.490018 / 0.579283 (-0.089265) | 0.590424 / 0.434364 (0.156060) | 0.589942 / 0.540337 (0.049604) | 0.798094 / 1.386936 (-0.588842) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#c0a77dc943de68a17f23f141517028c734c78623 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006592 / 0.011353 (-0.004761) | 0.003880 / 0.011008 (-0.007128) | 0.083761 / 0.038508 (0.045253) | 0.075966 / 0.023109 (0.052857) | 0.315291 / 0.275898 (0.039393) | 0.355920 / 0.323480 (0.032440) | 0.004972 / 0.007986 (-0.003014) | 0.003053 / 0.004328 (-0.001275) | 0.063553 / 0.004250 (0.059302) | 0.050794 / 0.037052 (0.013742) | 0.317681 / 0.258489 (0.059192) | 0.361991 / 0.293841 (0.068150) | 0.028119 / 0.128546 (-0.100427) | 0.008203 / 0.075646 (-0.067443) | 0.271756 / 0.419271 (-0.147516) | 0.046701 / 0.043533 (0.003168) | 0.316520 / 0.255139 (0.061381) | 0.350499 / 0.283200 (0.067300) | 0.022399 / 0.141683 (-0.119284) | 1.416017 / 1.452155 (-0.036138) | 1.503087 / 1.492716 (0.010371) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.208250 / 0.018006 (0.190244) | 0.470345 / 0.000490 (0.469856) | 0.003687 / 0.000200 (0.003487) | 0.000073 / 0.000054 (0.000019) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.026163 / 0.037411 (-0.011248) | 0.083315 / 0.014526 (0.068789) | 0.088541 / 0.176557 (-0.088015) | 0.150078 / 0.737135 (-0.587057) | 0.088862 / 0.296338 (-0.207476) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.404911 / 0.215209 (0.189702) | 4.059257 / 2.077655 (1.981602) | 1.890987 / 1.504120 (0.386867) | 1.726608 / 1.541195 (0.185413) | 1.767479 / 1.468490 (0.298989) | 0.518826 / 4.584777 (-4.065951) | 3.212145 / 3.745712 (-0.533567) | 3.029933 / 5.269862 (-2.239929) | 2.000203 / 4.565676 (-2.565474) | 0.059631 / 0.424275 (-0.364644) | 0.006707 / 0.007607 (-0.000900) | 0.485741 / 0.226044 (0.259697) | 4.871938 / 2.268929 (2.603010) | 2.418856 / 55.444624 (-53.025769) | 2.084847 / 6.876477 (-4.791630) | 2.207992 / 2.142072 (0.065920) | 0.614354 / 4.805227 (-4.190873) | 0.128932 / 6.500664 (-6.371732) | 0.062342 / 0.075469 (-0.013127) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.325792 / 1.841788 (-0.515995) | 19.718995 / 8.074308 (11.644687) | 15.278535 / 10.191392 (5.087143) | 0.146719 / 0.680424 (-0.533705) | 0.017718 / 0.534201 (-0.516483) | 0.335709 / 0.579283 (-0.243574) | 0.378060 / 0.434364 (-0.056304) | 0.391135 / 0.540337 (-0.149202) | 0.548045 / 1.386936 (-0.838891) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006504 / 0.011353 (-0.004849) | 0.003742 / 0.011008 (-0.007266) | 0.064405 / 0.038508 (0.025897) | 0.077618 / 0.023109 (0.054509) | 0.365325 / 0.275898 (0.089427) | 0.408109 / 0.323480 (0.084629) | 0.004909 / 0.007986 (-0.003076) | 0.002972 / 0.004328 (-0.001356) | 0.063933 / 0.004250 (0.059682) | 0.052916 / 0.037052 (0.015863) | 0.370891 / 0.258489 (0.112402) | 0.412134 / 0.293841 (0.118293) | 0.028171 / 0.128546 (-0.100375) | 0.008150 / 0.075646 (-0.067497) | 0.069248 / 0.419271 (-0.350024) | 0.042353 / 0.043533 (-0.001180) | 0.368117 / 0.255139 (0.112978) | 0.397548 / 0.283200 (0.114348) | 0.022967 / 0.141683 (-0.118716) | 1.472740 / 1.452155 (0.020586) | 1.524028 / 1.492716 (0.031311) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.256854 / 0.018006 (0.238848) | 0.471499 / 0.000490 (0.471009) | 0.009609 / 0.000200 (0.009409) | 0.000109 / 0.000054 (0.000054) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.027978 / 0.037411 (-0.009433) | 0.086741 / 0.014526 (0.072215) | 0.091189 / 0.176557 (-0.085368) | 0.146117 / 0.737135 (-0.591018) | 0.092358 / 0.296338 (-0.203980) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.426356 / 0.215209 (0.211147) | 4.263782 / 2.077655 (2.186127) | 2.178198 / 1.504120 (0.674078) | 2.015405 / 1.541195 (0.474211) | 2.055966 / 1.468490 (0.587476) | 0.507531 / 4.584777 (-4.077246) | 3.175967 / 3.745712 (-0.569745) | 3.055697 / 5.269862 (-2.214165) | 1.987663 / 4.565676 (-2.578014) | 0.058452 / 0.424275 (-0.365823) | 0.006944 / 0.007607 (-0.000663) | 0.502534 / 0.226044 (0.276489) | 5.024693 / 2.268929 (2.755765) | 2.754971 / 55.444624 (-52.689653) | 2.470845 / 6.876477 (-4.405632) | 2.698675 / 2.142072 (0.556602) | 0.602357 / 4.805227 (-4.202871) | 0.129490 / 6.500664 (-6.371174) | 0.065127 / 0.075469 (-0.010342) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.398487 / 1.841788 (-0.443301) | 19.692279 / 8.074308 (11.617971) | 15.124064 / 10.191392 (4.932672) | 0.148938 / 0.680424 (-0.531486) | 0.017418 / 0.534201 (-0.516783) | 0.340480 / 0.579283 (-0.238803) | 0.377223 / 0.434364 (-0.057141) | 0.405303 / 0.540337 (-0.135034) | 0.548923 / 1.386936 (-0.838013) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#58e62af004b6b8b84dcfd897a4bc71637cfa6c3f \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006433 / 0.011353 (-0.004920) | 0.004002 / 0.011008 (-0.007006) | 0.084130 / 0.038508 (0.045622) | 0.070628 / 0.023109 (0.047519) | 0.312372 / 0.275898 (0.036474) | 0.343993 / 0.323480 (0.020513) | 0.003936 / 0.007986 (-0.004050) | 0.003336 / 0.004328 (-0.000993) | 0.064715 / 0.004250 (0.060465) | 0.052511 / 0.037052 (0.015458) | 0.314092 / 0.258489 (0.055603) | 0.363152 / 0.293841 (0.069311) | 0.030898 / 0.128546 (-0.097648) | 0.008396 / 0.075646 (-0.067250) | 0.288083 / 0.419271 (-0.131188) | 0.051654 / 0.043533 (0.008122) | 0.315252 / 0.255139 (0.060113) | 0.346756 / 0.283200 (0.063556) | 0.025167 / 0.141683 (-0.116515) | 1.487265 / 1.452155 (0.035110) | 1.557528 / 1.492716 (0.064812) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.206517 / 0.018006 (0.188510) | 0.458359 / 0.000490 (0.457869) | 0.003719 / 0.000200 (0.003519) | 0.000070 / 0.000054 (0.000016) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029631 / 0.037411 (-0.007780) | 0.083856 / 0.014526 (0.069330) | 0.340431 / 0.176557 (0.163875) | 0.153864 / 0.737135 (-0.583271) | 0.095951 / 0.296338 (-0.200388) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.379182 / 0.215209 (0.163973) | 3.783396 / 2.077655 (1.705741) | 1.835932 / 1.504120 (0.331813) | 1.667563 / 1.541195 (0.126369) | 1.739309 / 1.468490 (0.270818) | 0.478957 / 4.584777 (-4.105820) | 3.521974 / 3.745712 (-0.223738) | 3.237635 / 5.269862 (-2.032227) | 2.000300 / 4.565676 (-2.565377) | 0.056389 / 0.424275 (-0.367887) | 0.007242 / 0.007607 (-0.000365) | 0.452642 / 0.226044 (0.226598) | 4.524339 / 2.268929 (2.255411) | 2.346210 / 55.444624 (-53.098414) | 1.957196 / 6.876477 (-4.919281) | 2.180051 / 2.142072 (0.037979) | 0.570205 / 4.805227 (-4.235022) | 0.131346 / 6.500664 (-6.369318) | 0.059327 / 0.075469 (-0.016142) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.244709 / 1.841788 (-0.597079) | 19.566277 / 8.074308 (11.491969) | 14.172598 / 10.191392 (3.981206) | 0.166493 / 0.680424 (-0.513931) | 0.018281 / 0.534201 (-0.515920) | 0.391608 / 0.579283 (-0.187675) | 0.402642 / 0.434364 (-0.031722) | 0.464974 / 0.540337 (-0.075364) | 0.637565 / 1.386936 (-0.749371) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006929 / 0.011353 (-0.004424) | 0.004114 / 0.011008 (-0.006894) | 0.064589 / 0.038508 (0.026081) | 0.083334 / 0.023109 (0.060225) | 0.391280 / 0.275898 (0.115382) | 0.426157 / 0.323480 (0.102678) | 0.005336 / 0.007986 (-0.002650) | 0.003395 / 0.004328 (-0.000934) | 0.064560 / 0.004250 (0.060310) | 0.057094 / 0.037052 (0.020042) | 0.398959 / 0.258489 (0.140470) | 0.432470 / 0.293841 (0.138629) | 0.031412 / 0.128546 (-0.097134) | 0.008670 / 0.075646 (-0.066976) | 0.071249 / 0.419271 (-0.348022) | 0.048934 / 0.043533 (0.005401) | 0.384207 / 0.255139 (0.129068) | 0.407992 / 0.283200 (0.124792) | 0.024492 / 0.141683 (-0.117191) | 1.467788 / 1.452155 (0.015634) | 1.541011 / 1.492716 (0.048295) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.279607 / 0.018006 (0.261600) | 0.448899 / 0.000490 (0.448410) | 0.020990 / 0.000200 (0.020790) | 0.000132 / 0.000054 (0.000078) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030313 / 0.037411 (-0.007099) | 0.089209 / 0.014526 (0.074684) | 0.101024 / 0.176557 (-0.075532) | 0.153468 / 0.737135 (-0.583667) | 0.103219 / 0.296338 (-0.193120) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.429176 / 0.215209 (0.213967) | 4.302234 / 2.077655 (2.224580) | 2.291103 / 1.504120 (0.786983) | 2.126257 / 1.541195 (0.585062) | 2.207090 / 1.468490 (0.738600) | 0.484643 / 4.584777 (-4.100134) | 3.557429 / 3.745712 (-0.188283) | 3.253804 / 5.269862 (-2.016058) | 2.026087 / 4.565676 (-2.539589) | 0.057793 / 0.424275 (-0.366482) | 0.007761 / 0.007607 (0.000154) | 0.504819 / 0.226044 (0.278775) | 5.046868 / 2.268929 (2.777940) | 2.773149 / 55.444624 (-52.671475) | 2.398036 / 6.876477 (-4.478440) | 2.608094 / 2.142072 (0.466021) | 0.630499 / 4.805227 (-4.174729) | 0.135496 / 6.500664 (-6.365168) | 0.061329 / 0.075469 (-0.014140) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.327124 / 1.841788 (-0.514664) | 19.889796 / 8.074308 (11.815488) | 14.196100 / 10.191392 (4.004708) | 0.161963 / 0.680424 (-0.518461) | 0.018529 / 0.534201 (-0.515672) | 0.392325 / 0.579283 (-0.186958) | 0.404836 / 0.434364 (-0.029528) | 0.475898 / 0.540337 (-0.064439) | 0.633563 / 1.386936 (-0.753373) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#e4684fc1032321abf0d494b0c130ea7c82ebda80 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006390 / 0.011353 (-0.004963) | 0.003683 / 0.011008 (-0.007325) | 0.081274 / 0.038508 (0.042766) | 0.062193 / 0.023109 (0.039083) | 0.355360 / 0.275898 (0.079462) | 0.396471 / 0.323480 (0.072992) | 0.003569 / 0.007986 (-0.004416) | 0.003928 / 0.004328 (-0.000400) | 0.062292 / 0.004250 (0.058041) | 0.049700 / 0.037052 (0.012648) | 0.354604 / 0.258489 (0.096115) | 0.419436 / 0.293841 (0.125595) | 0.027151 / 0.128546 (-0.101395) | 0.007954 / 0.075646 (-0.067692) | 0.262231 / 0.419271 (-0.157041) | 0.045483 / 0.043533 (0.001950) | 0.354285 / 0.255139 (0.099146) | 0.385178 / 0.283200 (0.101978) | 0.021183 / 0.141683 (-0.120500) | 1.420785 / 1.452155 (-0.031370) | 1.531545 / 1.492716 (0.038829) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.202298 / 0.018006 (0.184292) | 0.442172 / 0.000490 (0.441683) | 0.003565 / 0.000200 (0.003366) | 0.000074 / 0.000054 (0.000020) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.024229 / 0.037411 (-0.013183) | 0.074352 / 0.014526 (0.059826) | 0.087530 / 0.176557 (-0.089026) | 0.146478 / 0.737135 (-0.590658) | 0.085145 / 0.296338 (-0.211194) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.388395 / 0.215209 (0.173186) | 3.877623 / 2.077655 (1.799968) | 1.882444 / 1.504120 (0.378324) | 1.707871 / 1.541195 (0.166676) | 1.772132 / 1.468490 (0.303642) | 0.491937 / 4.584777 (-4.092840) | 3.057947 / 3.745712 (-0.687765) | 2.822390 / 5.269862 (-2.447471) | 1.879719 / 4.565676 (-2.685957) | 0.056830 / 0.424275 (-0.367445) | 0.006415 / 0.007607 (-0.001192) | 0.458945 / 0.226044 (0.232900) | 4.594502 / 2.268929 (2.325574) | 2.339677 / 55.444624 (-53.104948) | 1.983750 / 6.876477 (-4.892727) | 2.173792 / 2.142072 (0.031719) | 0.580390 / 4.805227 (-4.224838) | 0.124568 / 6.500664 (-6.376096) | 0.061694 / 0.075469 (-0.013775) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.265108 / 1.841788 (-0.576680) | 18.415254 / 8.074308 (10.340946) | 13.963829 / 10.191392 (3.772437) | 0.148926 / 0.680424 (-0.531498) | 0.016919 / 0.534201 (-0.517282) | 0.331082 / 0.579283 (-0.248201) | 0.345777 / 0.434364 (-0.088587) | 0.381123 / 0.540337 (-0.159214) | 0.543297 / 1.386936 (-0.843639) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006121 / 0.011353 (-0.005232) | 0.003717 / 0.011008 (-0.007291) | 0.063653 / 0.038508 (0.025144) | 0.063723 / 0.023109 (0.040613) | 0.360233 / 0.275898 (0.084335) | 0.398353 / 0.323480 (0.074873) | 0.004696 / 0.007986 (-0.003290) | 0.002876 / 0.004328 (-0.001452) | 0.063057 / 0.004250 (0.058806) | 0.050258 / 0.037052 (0.013206) | 0.362946 / 0.258489 (0.104457) | 0.403260 / 0.293841 (0.109419) | 0.027738 / 0.128546 (-0.100809) | 0.008025 / 0.075646 (-0.067621) | 0.068781 / 0.419271 (-0.350491) | 0.042114 / 0.043533 (-0.001419) | 0.363546 / 0.255139 (0.108407) | 0.385640 / 0.283200 (0.102440) | 0.021757 / 0.141683 (-0.119926) | 1.482364 / 1.452155 (0.030209) | 1.571859 / 1.492716 (0.079143) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.235628 / 0.018006 (0.217622) | 0.439909 / 0.000490 (0.439419) | 0.003070 / 0.000200 (0.002870) | 0.000075 / 0.000054 (0.000020) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.027045 / 0.037411 (-0.010366) | 0.080413 / 0.014526 (0.065887) | 0.088953 / 0.176557 (-0.087603) | 0.141907 / 0.737135 (-0.595228) | 0.090604 / 0.296338 (-0.205735) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.423250 / 0.215209 (0.208041) | 4.216510 / 2.077655 (2.138855) | 2.162946 / 1.504120 (0.658826) | 2.014561 / 1.541195 (0.473366) | 2.086347 / 1.468490 (0.617857) | 0.496591 / 4.584777 (-4.088186) | 3.089594 / 3.745712 (-0.656118) | 2.853640 / 5.269862 (-2.416221) | 1.878149 / 4.565676 (-2.687527) | 0.056914 / 0.424275 (-0.367361) | 0.006762 / 0.007607 (-0.000845) | 0.493470 / 0.226044 (0.267426) | 4.929966 / 2.268929 (2.661037) | 2.640885 / 55.444624 (-52.803739) | 2.335950 / 6.876477 (-4.540527) | 2.565866 / 2.142072 (0.423793) | 0.585433 / 4.805227 (-4.219794) | 0.124969 / 6.500664 (-6.375695) | 0.062361 / 0.075469 (-0.013108) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.369144 / 1.841788 (-0.472644) | 19.037582 / 8.074308 (10.963274) | 14.069141 / 10.191392 (3.877749) | 0.146469 / 0.680424 (-0.533954) | 0.016911 / 0.534201 (-0.517290) | 0.336802 / 0.579283 (-0.242482) | 0.336411 / 0.434364 (-0.097953) | 0.392360 / 0.540337 (-0.147977) | 0.536078 / 1.386936 (-0.850858) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#12cfc1196e62847e2e8239fbd727a02cbc86ddec \"CML watermark\")\n" ]

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[ "Our CI did not catch this issue because with current implementation, stored token in `HfFolder` (which always exists) is used by default.", "I can confirm this and have the same problem (and just went almost crazy because I couldn't figure out the source of this problem because on another computer everything worked well even with `DownloadMode.FORCE_REDOWNLOAD`).", "We are planning to do a patch release today, after the merge of the fix:\r\n- #6127\r\n\r\nIn the meantime, the problem can be circumvented by passing `download_config` instead:\r\n```python\r\nfrom datasets import DownloadConfig, load_dataset\r\n\r\nload_dataset(\"<DATASET-NAME>\", split=\"train\", download_config=DownloadConfig(token=\"<TOKEN>\"))\r\n``` ", "> We are planning to do a patch release today, after the merge of the fix:\r\n> \r\n> * [Fix authentication issues #6127](https://github.com/huggingface/datasets/pull/6127)\r\n> \r\n> \r\n> In the meantime, the problem can be circumvented by passing `download_config` instead:\r\n> \r\n> ```python\r\n> from datasets import DownloadConfig, load_dataset\r\n> \r\n> load_dataset(\"<DATASET-NAME>\", split=\"train\", download_config=DownloadConfig(token=\"<TOKEN>\"))\r\n> ```\r\n\r\nThis did not work for me (there was some other error with the split being an unexpected size 0). Downgrading to 2.13 fixed it...." ]

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[ "i once had the same error and I could fix that by pushing a fake or a dummy commit on my hugging face dataset repo", "Hi! We need a reproducer to fix this. Can you provide a link to the dataset (if it's public)?", "> Hi! We need a reproducer to fix this. Can you provide a link to the dataset (if it's public)?\r\n\r\nHi Mario,\r\n\r\nUnfortunately, the dataset in question is currently private until the model is trained and released.\r\n\r\nThis is not happening with one dataset but numerous hosted private datasets.\r\n\r\nI am only loading the dataset and doing nothing else currently. It seems to happen completely sporadically.\r\n\r\nThank you,\r\n\r\nEnrico", "Hi,\r\n\r\nI have the same error in the dataset viewer with my dataset\r\nhttps://huggingface.co/datasets/elsaEU/ELSA10M_track1\r\n\r\nHas anyone solved this issue?\r\n\r\nEdit: After a dummy commit the error changed in ConfigNamesError", "@rs9000 The problem seems to be the (large) number of commits, as explained in https://huggingface.co/docs/hub/repositories-recommendations. This can be fixed by running:\r\n```python\r\nimport huggingface_hub\r\nhuggingface_hub.super_squash_history(repo_id=\"elsaEU/ELSA10M_track1\")\r\n``` \r\n\r\nThe issue stems from `push_to_hub` creating one commit per shard - https://github.com/huggingface/datasets/pull/6269 should fix this issue (will create one commit per 50 uploaded shards by default). The linked PR will be included in the next `datasets` release.\r\n\r\n\r\ncc @lhoestq @severo for visibility", "Thank you @mariosasko it works.", "#6269 has been merged, so I'm closing this issue" ]

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[ "Hi! Thanks for the investigation, but we are not the authors of these datasets, so please report this on the Hub instead so that the actual authors can fix it." ]

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[ "You can use `huggingface_hub`'s [Card API](https://huggingface.co/docs/huggingface_hub/package_reference/cards) to programmatically push a dataset card to the Hub." ]

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[ "Hi,\r\n\r\nI found a small typo in the code example of create imagefolder dataset. It confused me a little when I first saw it.\r\n\r\nBest Regards.\r\n\r\nXin" ]

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[ "In which format is your dataset? We could expose the `pre_buffer` flag for Parquet to use PyArrow's background thread pool to speed up loading. " ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007755 / 0.011353 (-0.003598) | 0.004618 / 0.011008 (-0.006391) | 0.098132 / 0.038508 (0.059624) | 0.086759 / 0.023109 (0.063650) | 0.374668 / 0.275898 (0.098770) | 0.417131 / 0.323480 (0.093651) | 0.004604 / 0.007986 (-0.003382) | 0.005461 / 0.004328 (0.001132) | 0.077249 / 0.004250 (0.072999) | 0.063247 / 0.037052 (0.026195) | 0.391801 / 0.258489 (0.133312) | 0.432139 / 0.293841 (0.138298) | 0.036755 / 0.128546 (-0.091791) | 0.010011 / 0.075646 (-0.065636) | 0.346175 / 0.419271 (-0.073097) | 0.061503 / 0.043533 (0.017971) | 0.374063 / 0.255139 (0.118924) | 0.435873 / 0.283200 (0.152673) | 0.029476 / 0.141683 (-0.112207) | 1.786945 / 1.452155 (0.334790) | 1.857190 / 1.492716 (0.364474) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.253939 / 0.018006 (0.235933) | 0.506847 / 0.000490 (0.506358) | 0.007278 / 0.000200 (0.007079) | 0.000451 / 0.000054 (0.000397) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032938 / 0.037411 (-0.004474) | 0.097493 / 0.014526 (0.082967) | 0.112090 / 0.176557 (-0.064467) | 0.177986 / 0.737135 (-0.559149) | 0.112060 / 0.296338 (-0.184278) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.481858 / 0.215209 (0.266649) | 4.814894 / 2.077655 (2.737239) | 2.496428 / 1.504120 (0.992308) | 2.309965 / 1.541195 (0.768770) | 2.393819 / 1.468490 (0.925329) | 0.564670 / 4.584777 (-4.020107) | 4.151222 / 3.745712 (0.405510) | 3.676115 / 5.269862 (-1.593747) | 2.346165 / 4.565676 (-2.219512) | 0.066344 / 0.424275 (-0.357931) | 0.009006 / 0.007607 (0.001399) | 0.567699 / 0.226044 (0.341654) | 5.686799 / 2.268929 (3.417871) | 3.031044 / 55.444624 (-52.413580) | 2.606259 / 6.876477 (-4.270217) | 2.864876 / 2.142072 (0.722804) | 0.681730 / 4.805227 (-4.123498) | 0.155405 / 6.500664 (-6.345259) | 0.071492 / 0.075469 (-0.003977) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.514446 / 1.841788 (-0.327341) | 22.624912 / 8.074308 (14.550604) | 16.754145 / 10.191392 (6.562753) | 0.193113 / 0.680424 (-0.487311) | 0.021808 / 0.534201 (-0.512393) | 0.468241 / 0.579283 (-0.111042) | 0.499647 / 0.434364 (0.065283) | 0.539571 / 0.540337 (-0.000766) | 0.771268 / 1.386936 (-0.615668) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007562 / 0.011353 (-0.003791) | 0.004548 / 0.011008 (-0.006460) | 0.075998 / 0.038508 (0.037490) | 0.081648 / 0.023109 (0.058539) | 0.462876 / 0.275898 (0.186978) | 0.499366 / 0.323480 (0.175886) | 0.005839 / 0.007986 (-0.002147) | 0.003753 / 0.004328 (-0.000576) | 0.075918 / 0.004250 (0.071668) | 0.063233 / 0.037052 (0.026181) | 0.459024 / 0.258489 (0.200535) | 0.506388 / 0.293841 (0.212547) | 0.036179 / 0.128546 (-0.092367) | 0.009961 / 0.075646 (-0.065685) | 0.082061 / 0.419271 (-0.337211) | 0.056469 / 0.043533 (0.012936) | 0.459567 / 0.255139 (0.204428) | 0.482578 / 0.283200 (0.199378) | 0.026363 / 0.141683 (-0.115320) | 1.742247 / 1.452155 (0.290092) | 1.807166 / 1.492716 (0.314450) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.330526 / 0.018006 (0.312520) | 0.511674 / 0.000490 (0.511184) | 0.040969 / 0.000200 (0.040769) | 0.000176 / 0.000054 (0.000121) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.035492 / 0.037411 (-0.001920) | 0.104338 / 0.014526 (0.089813) | 0.116973 / 0.176557 (-0.059583) | 0.180218 / 0.737135 (-0.556917) | 0.118801 / 0.296338 (-0.177538) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.492196 / 0.215209 (0.276987) | 4.910271 / 2.077655 (2.832616) | 2.542562 / 1.504120 (1.038442) | 2.333516 / 1.541195 (0.792321) | 2.439682 / 1.468490 (0.971192) | 0.571966 / 4.584777 (-4.012811) | 4.089801 / 3.745712 (0.344089) | 3.732129 / 5.269862 (-1.537733) | 2.375887 / 4.565676 (-2.189789) | 0.067376 / 0.424275 (-0.356900) | 0.008350 / 0.007607 (0.000743) | 0.583942 / 0.226044 (0.357897) | 5.840002 / 2.268929 (3.571074) | 3.062520 / 55.444624 (-52.382104) | 2.722512 / 6.876477 (-4.153965) | 2.938307 / 2.142072 (0.796234) | 0.689459 / 4.805227 (-4.115769) | 0.155632 / 6.500664 (-6.345032) | 0.072387 / 0.075469 (-0.003082) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.595587 / 1.841788 (-0.246201) | 23.035478 / 8.074308 (14.961170) | 16.457675 / 10.191392 (6.266283) | 0.170819 / 0.680424 (-0.509605) | 0.022042 / 0.534201 (-0.512159) | 0.466824 / 0.579283 (-0.112459) | 0.486350 / 0.434364 (0.051986) | 0.574330 / 0.540337 (0.033993) | 0.764913 / 1.386936 (-0.622023) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#664a1cb72ea1e6ef7c47e671e2686ca4a35e8d63 \"CML watermark\")\n" ]

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[ "Hi! `IterableDataset.from_generator` expects a generator function, not the object (to be consistent with `Dataset.from_generator`).\r\n\r\nYou can fix the above snippet as follows:\r\n```python\r\ntrain_dataset = IterableDataset.from_generator(line_generator, fn_kwargs={\"files\": model_training_files})\r\n```", "to anyone reaching this issue, the argument is `gen_kwargs`:\r\n```py\r\ntrain_dataset = IterableDataset.from_generator(line_generator, gen_kwargs={\"files\": model_training_files})\r\n```" ]

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[ "The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6117). All of your documentation changes will be reflected on that endpoint.", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.012516 / 0.011353 (0.001163) | 0.004725 / 0.011008 (-0.006283) | 0.112245 / 0.038508 (0.073736) | 0.079146 / 0.023109 (0.056037) | 0.386415 / 0.275898 (0.110517) | 0.420441 / 0.323480 (0.096961) | 0.005682 / 0.007986 (-0.002304) | 0.004169 / 0.004328 (-0.000160) | 0.077847 / 0.004250 (0.073597) | 0.055763 / 0.037052 (0.018711) | 0.385529 / 0.258489 (0.127040) | 0.422711 / 0.293841 (0.128870) | 0.047212 / 0.128546 (-0.081334) | 0.013711 / 0.075646 (-0.061935) | 0.342856 / 0.419271 (-0.076416) | 0.066788 / 0.043533 (0.023255) | 0.380728 / 0.255139 (0.125589) | 0.416241 / 0.283200 (0.133041) | 0.034676 / 0.141683 (-0.107007) | 1.679661 / 1.452155 (0.227506) | 1.838014 / 1.492716 (0.345297) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.219556 / 0.018006 (0.201550) | 0.524728 / 0.000490 (0.524238) | 0.005045 / 0.000200 (0.004845) | 0.000124 / 0.000054 (0.000069) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025475 / 0.037411 (-0.011936) | 0.085937 / 0.014526 (0.071412) | 0.099245 / 0.176557 (-0.077311) | 0.158995 / 0.737135 (-0.578141) | 0.101504 / 0.296338 (-0.194835) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.582200 / 0.215209 (0.366991) | 5.794340 / 2.077655 (3.716685) | 2.473635 / 1.504120 (0.969515) | 2.168135 / 1.541195 (0.626941) | 2.215886 / 1.468490 (0.747396) | 0.855599 / 4.584777 (-3.729178) | 5.003067 / 3.745712 (1.257354) | 4.503566 / 5.269862 (-0.766295) | 2.912248 / 4.565676 (-1.653428) | 0.103267 / 0.424275 (-0.321008) | 0.012114 / 0.007607 (0.004507) | 0.712240 / 0.226044 (0.486196) | 7.131946 / 2.268929 (4.863017) | 3.280052 / 55.444624 (-52.164573) | 2.583472 / 6.876477 (-4.293004) | 2.820758 / 2.142072 (0.678686) | 1.132097 / 4.805227 (-3.673131) | 0.232191 / 6.500664 (-6.268473) | 0.082966 / 0.075469 (0.007497) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.581125 / 1.841788 (-0.260662) | 22.723878 / 8.074308 (14.649570) | 19.969347 / 10.191392 (9.777955) | 0.234365 / 0.680424 (-0.446059) | 0.030245 / 0.534201 (-0.503956) | 0.470843 / 0.579283 (-0.108440) | 0.558069 / 0.434364 (0.123705) | 0.534878 / 0.540337 (-0.005460) | 0.801025 / 1.386936 (-0.585911) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008524 / 0.011353 (-0.002829) | 0.005083 / 0.011008 (-0.005925) | 0.078054 / 0.038508 (0.039546) | 0.082025 / 0.023109 (0.058915) | 0.458027 / 0.275898 (0.182129) | 0.498232 / 0.323480 (0.174752) | 0.005938 / 0.007986 (-0.002048) | 0.003776 / 0.004328 (-0.000553) | 0.080413 / 0.004250 (0.076163) | 0.060485 / 0.037052 (0.023433) | 0.462816 / 0.258489 (0.204327) | 0.513970 / 0.293841 (0.220129) | 0.047574 / 0.128546 (-0.080973) | 0.013424 / 0.075646 (-0.062222) | 0.087707 / 0.419271 (-0.331565) | 0.065007 / 0.043533 (0.021474) | 0.465844 / 0.255139 (0.210705) | 0.498474 / 0.283200 (0.215274) | 0.033518 / 0.141683 (-0.108164) | 1.737507 / 1.452155 (0.285352) | 1.848291 / 1.492716 (0.355574) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.316710 / 0.018006 (0.298703) | 0.504415 / 0.000490 (0.503925) | 0.042128 / 0.000200 (0.041928) | 0.000171 / 0.000054 (0.000117) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032097 / 0.037411 (-0.005314) | 0.099371 / 0.014526 (0.084845) | 0.109311 / 0.176557 (-0.067246) | 0.177373 / 0.737135 (-0.559762) | 0.110753 / 0.296338 (-0.185585) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.688060 / 0.215209 (0.472851) | 6.255219 / 2.077655 (4.177564) | 2.696845 / 1.504120 (1.192725) | 2.395424 / 1.541195 (0.854230) | 2.414870 / 1.468490 (0.946380) | 0.865704 / 4.584777 (-3.719073) | 5.086828 / 3.745712 (1.341116) | 4.648107 / 5.269862 (-0.621754) | 3.091119 / 4.565676 (-1.474558) | 0.101787 / 0.424275 (-0.322489) | 0.008829 / 0.007607 (0.001222) | 0.772398 / 0.226044 (0.546354) | 7.700366 / 2.268929 (5.431438) | 3.608632 / 55.444624 (-51.835992) | 2.923309 / 6.876477 (-3.953168) | 2.952141 / 2.142072 (0.810069) | 1.093006 / 4.805227 (-3.712221) | 0.224363 / 6.500664 (-6.276301) | 0.074927 / 0.075469 (-0.000542) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.638414 / 1.841788 (-0.203374) | 23.486781 / 8.074308 (15.412473) | 21.129104 / 10.191392 (10.937712) | 0.259955 / 0.680424 (-0.420469) | 0.027305 / 0.534201 (-0.506895) | 0.464448 / 0.579283 (-0.114835) | 0.553737 / 0.434364 (0.119373) | 0.571318 / 0.540337 (0.030981) | 0.772917 / 1.386936 (-0.614019) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#3ec5ee9e78b464364796651d995823c7ecb0f951 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009093 / 0.011353 (-0.002260) | 0.005283 / 0.011008 (-0.005725) | 0.112299 / 0.038508 (0.073791) | 0.081341 / 0.023109 (0.058232) | 0.363799 / 0.275898 (0.087901) | 0.409261 / 0.323480 (0.085781) | 0.006400 / 0.007986 (-0.001586) | 0.003965 / 0.004328 (-0.000363) | 0.074389 / 0.004250 (0.070139) | 0.060654 / 0.037052 (0.023602) | 0.391046 / 0.258489 (0.132557) | 0.430514 / 0.293841 (0.136673) | 0.054900 / 0.128546 (-0.073646) | 0.017972 / 0.075646 (-0.057675) | 0.410875 / 0.419271 (-0.008396) | 0.067405 / 0.043533 (0.023873) | 0.371468 / 0.255139 (0.116329) | 0.435061 / 0.283200 (0.151861) | 0.038063 / 0.141683 (-0.103620) | 1.733509 / 1.452155 (0.281354) | 1.833899 / 1.492716 (0.341182) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.243230 / 0.018006 (0.225224) | 0.605636 / 0.000490 (0.605146) | 0.004890 / 0.000200 (0.004690) | 0.000098 / 0.000054 (0.000043) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.027624 / 0.037411 (-0.009787) | 0.084799 / 0.014526 (0.070273) | 0.104405 / 0.176557 (-0.072152) | 0.165383 / 0.737135 (-0.571752) | 0.102083 / 0.296338 (-0.194255) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.578334 / 0.215209 (0.363125) | 5.369520 / 2.077655 (3.291866) | 2.294174 / 1.504120 (0.790055) | 2.054195 / 1.541195 (0.513000) | 2.007304 / 1.468490 (0.538814) | 0.839283 / 4.584777 (-3.745494) | 5.262288 / 3.745712 (1.516576) | 4.363346 / 5.269862 (-0.906516) | 2.854903 / 4.565676 (-1.710773) | 0.096975 / 0.424275 (-0.327300) | 0.008237 / 0.007607 (0.000630) | 0.646746 / 0.226044 (0.420702) | 6.250621 / 2.268929 (3.981693) | 2.900377 / 55.444624 (-52.544247) | 2.283238 / 6.876477 (-4.593239) | 2.443785 / 2.142072 (0.301713) | 0.991719 / 4.805227 (-3.813508) | 0.189755 / 6.500664 (-6.310909) | 0.067906 / 0.075469 (-0.007563) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.515563 / 1.841788 (-0.326225) | 21.956499 / 8.074308 (13.882191) | 19.161750 / 10.191392 (8.970358) | 0.238199 / 0.680424 (-0.442225) | 0.026771 / 0.534201 (-0.507430) | 0.450195 / 0.579283 (-0.129088) | 0.585168 / 0.434364 (0.150804) | 0.522945 / 0.540337 (-0.017393) | 0.776244 / 1.386936 (-0.610693) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007997 / 0.011353 (-0.003356) | 0.005021 / 0.011008 (-0.005988) | 0.087308 / 0.038508 (0.048800) | 0.077760 / 0.023109 (0.054650) | 0.425313 / 0.275898 (0.149415) | 0.451470 / 0.323480 (0.127990) | 0.006848 / 0.007986 (-0.001137) | 0.004812 / 0.004328 (0.000484) | 0.071198 / 0.004250 (0.066947) | 0.058325 / 0.037052 (0.021273) | 0.427411 / 0.258489 (0.168922) | 0.466069 / 0.293841 (0.172228) | 0.048686 / 0.128546 (-0.079861) | 0.011841 / 0.075646 (-0.063806) | 0.086225 / 0.419271 (-0.333047) | 0.060500 / 0.043533 (0.016967) | 0.435580 / 0.255139 (0.180441) | 0.456919 / 0.283200 (0.173719) | 0.035094 / 0.141683 (-0.106588) | 1.582805 / 1.452155 (0.130650) | 1.717838 / 1.492716 (0.225122) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.283967 / 0.018006 (0.265960) | 0.517496 / 0.000490 (0.517006) | 0.014747 / 0.000200 (0.014547) | 0.000099 / 0.000054 (0.000045) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.027870 / 0.037411 (-0.009541) | 0.083835 / 0.014526 (0.069309) | 0.099157 / 0.176557 (-0.077400) | 0.173210 / 0.737135 (-0.563925) | 0.094212 / 0.296338 (-0.202127) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.535720 / 0.215209 (0.320511) | 5.273730 / 2.077655 (3.196075) | 2.422560 / 1.504120 (0.918440) | 2.131416 / 1.541195 (0.590222) | 2.192000 / 1.468490 (0.723510) | 0.708469 / 4.584777 (-3.876308) | 4.758092 / 3.745712 (1.012380) | 3.940729 / 5.269862 (-1.329133) | 2.553093 / 4.565676 (-2.012583) | 0.084895 / 0.424275 (-0.339380) | 0.008730 / 0.007607 (0.001123) | 0.646975 / 0.226044 (0.420930) | 6.294811 / 2.268929 (4.025883) | 3.293964 / 55.444624 (-52.150660) | 2.568985 / 6.876477 (-4.307492) | 2.743786 / 2.142072 (0.601713) | 0.899733 / 4.805227 (-3.905494) | 0.193484 / 6.500664 (-6.307181) | 0.070012 / 0.075469 (-0.005457) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.502255 / 1.841788 (-0.339532) | 20.690234 / 8.074308 (12.615926) | 18.375791 / 10.191392 (8.184399) | 0.200135 / 0.680424 (-0.480289) | 0.029434 / 0.534201 (-0.504767) | 0.477267 / 0.579283 (-0.102016) | 0.566869 / 0.434364 (0.132505) | 0.543756 / 0.540337 (0.003418) | 0.700476 / 1.386936 (-0.686460) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#ef17d9fd6c648bb41d43ba301c3de4d7b6f833d8 \"CML watermark\")\n" ]

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[ "Great idea, feel free to open a PR! :)" ]

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[ "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007578 / 0.011353 (-0.003775) | 0.004271 / 0.011008 (-0.006738) | 0.086607 / 0.038508 (0.048098) | 0.063209 / 0.023109 (0.040099) | 0.351724 / 0.275898 (0.075826) | 0.399261 / 0.323480 (0.075781) | 0.004767 / 0.007986 (-0.003219) | 0.003487 / 0.004328 (-0.000842) | 0.071483 / 0.004250 (0.067233) | 0.051281 / 0.037052 (0.014229) | 0.387726 / 0.258489 (0.129237) | 0.408446 / 0.293841 (0.114605) | 0.041189 / 0.128546 (-0.087357) | 0.012446 / 0.075646 (-0.063200) | 0.331147 / 0.419271 (-0.088124) | 0.056721 / 0.043533 (0.013188) | 0.361306 / 0.255139 (0.106167) | 0.409651 / 0.283200 (0.126451) | 0.035485 / 0.141683 (-0.106198) | 1.461391 / 1.452155 (0.009236) | 1.554820 / 1.492716 (0.062104) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.237119 / 0.018006 (0.219113) | 0.518731 / 0.000490 (0.518241) | 0.004192 / 0.000200 (0.003992) | 0.000114 / 0.000054 (0.000059) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.024912 / 0.037411 (-0.012499) | 0.089420 / 0.014526 (0.074894) | 0.091209 / 0.176557 (-0.085347) | 0.152580 / 0.737135 (-0.584555) | 0.089660 / 0.296338 (-0.206678) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.515223 / 0.215209 (0.300014) | 5.328359 / 2.077655 (3.250705) | 1.974326 / 1.504120 (0.470206) | 1.665216 / 1.541195 (0.124021) | 1.736040 / 1.468490 (0.267550) | 0.734746 / 4.584777 (-3.850031) | 4.186613 / 3.745712 (0.440901) | 3.535760 / 5.269862 (-1.734102) | 2.333247 / 4.565676 (-2.232429) | 0.071845 / 0.424275 (-0.352430) | 0.006147 / 0.007607 (-0.001460) | 0.546649 / 0.226044 (0.320605) | 5.452281 / 2.268929 (3.183353) | 2.512984 / 55.444624 (-52.931640) | 2.104210 / 6.876477 (-4.772267) | 2.409251 / 2.142072 (0.267178) | 0.822797 / 4.805227 (-3.982430) | 0.166648 / 6.500664 (-6.334016) | 0.056350 / 0.075469 (-0.019119) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.397798 / 1.841788 (-0.443989) | 20.549399 / 8.074308 (12.475091) | 19.118168 / 10.191392 (8.926776) | 0.216361 / 0.680424 (-0.464063) | 0.027064 / 0.534201 (-0.507136) | 0.410762 / 0.579283 (-0.168521) | 0.559225 / 0.434364 (0.124861) | 0.468028 / 0.540337 (-0.072309) | 0.691520 / 1.386936 (-0.695416) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006463 / 0.011353 (-0.004890) | 0.003879 / 0.011008 (-0.007130) | 0.058723 / 0.038508 (0.020215) | 0.057202 / 0.023109 (0.034092) | 0.344397 / 0.275898 (0.068499) | 0.360388 / 0.323480 (0.036908) | 0.005502 / 0.007986 (-0.002483) | 0.004101 / 0.004328 (-0.000227) | 0.058168 / 0.004250 (0.053917) | 0.059112 / 0.037052 (0.022060) | 0.362206 / 0.258489 (0.103717) | 0.386444 / 0.293841 (0.092603) | 0.036613 / 0.128546 (-0.091934) | 0.010482 / 0.075646 (-0.065165) | 0.065850 / 0.419271 (-0.353421) | 0.046528 / 0.043533 (0.002995) | 0.349568 / 0.255139 (0.094429) | 0.360181 / 0.283200 (0.076981) | 0.029030 / 0.141683 (-0.112653) | 1.314569 / 1.452155 (-0.137586) | 1.422393 / 1.492716 (-0.070324) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.281554 / 0.018006 (0.263548) | 0.608018 / 0.000490 (0.607528) | 0.004568 / 0.000200 (0.004368) | 0.000182 / 0.000054 (0.000127) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023515 / 0.037411 (-0.013896) | 0.072994 / 0.014526 (0.058468) | 0.080688 / 0.176557 (-0.095868) | 0.125904 / 0.737135 (-0.611232) | 0.085457 / 0.296338 (-0.210882) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.471530 / 0.215209 (0.256321) | 4.796197 / 2.077655 (2.718542) | 2.189181 / 1.504120 (0.685061) | 1.886649 / 1.541195 (0.345454) | 1.871067 / 1.468490 (0.402577) | 0.661043 / 4.584777 (-3.923734) | 4.344027 / 3.745712 (0.598315) | 3.656967 / 5.269862 (-1.612895) | 2.286033 / 4.565676 (-2.279644) | 0.079146 / 0.424275 (-0.345129) | 0.006840 / 0.007607 (-0.000767) | 0.588750 / 0.226044 (0.362706) | 6.301286 / 2.268929 (4.032357) | 3.074702 / 55.444624 (-52.369923) | 2.398739 / 6.876477 (-4.477738) | 2.555057 / 2.142072 (0.412985) | 0.874189 / 4.805227 (-3.931038) | 0.191423 / 6.500664 (-6.309241) | 0.061227 / 0.075469 (-0.014242) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.472763 / 1.841788 (-0.369024) | 19.441304 / 8.074308 (11.366996) | 15.974276 / 10.191392 (5.782884) | 0.172503 / 0.680424 (-0.507921) | 0.027016 / 0.534201 (-0.507185) | 0.356085 / 0.579283 (-0.223198) | 0.473251 / 0.434364 (0.038887) | 0.427949 / 0.540337 (-0.112388) | 0.588924 / 1.386936 (-0.798013) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#0973da6e60ac7c1d24229ba6aa6881747b21858a \"CML watermark\")\n", "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006166 / 0.011353 (-0.005187) | 0.003558 / 0.011008 (-0.007450) | 0.080576 / 0.038508 (0.042068) | 0.066542 / 0.023109 (0.043432) | 0.323997 / 0.275898 (0.048099) | 0.369828 / 0.323480 (0.046348) | 0.004896 / 0.007986 (-0.003090) | 0.002909 / 0.004328 (-0.001419) | 0.062553 / 0.004250 (0.058302) | 0.049795 / 0.037052 (0.012742) | 0.321369 / 0.258489 (0.062880) | 0.422860 / 0.293841 (0.129019) | 0.027394 / 0.128546 (-0.101152) | 0.007954 / 0.075646 (-0.067693) | 0.264122 / 0.419271 (-0.155149) | 0.044881 / 0.043533 (0.001349) | 0.316702 / 0.255139 (0.061563) | 0.374718 / 0.283200 (0.091518) | 0.021728 / 0.141683 (-0.119955) | 1.394456 / 1.452155 (-0.057699) | 1.474936 / 1.492716 (-0.017780) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.191902 / 0.018006 (0.173896) | 0.430468 / 0.000490 (0.429979) | 0.003790 / 0.000200 (0.003590) | 0.000069 / 0.000054 (0.000015) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.024974 / 0.037411 (-0.012438) | 0.073053 / 0.014526 (0.058527) | 0.083801 / 0.176557 (-0.092756) | 0.143457 / 0.737135 (-0.593678) | 0.085099 / 0.296338 (-0.211240) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.428411 / 0.215209 (0.213202) | 4.278077 / 2.077655 (2.200422) | 2.230039 / 1.504120 (0.725919) | 2.057191 / 1.541195 (0.515996) | 2.120109 / 1.468490 (0.651619) | 0.495242 / 4.584777 (-4.089535) | 3.031299 / 3.745712 (-0.714413) | 2.802685 / 5.269862 (-2.467176) | 1.839828 / 4.565676 (-2.725849) | 0.056875 / 0.424275 (-0.367401) | 0.006446 / 0.007607 (-0.001161) | 0.498958 / 0.226044 (0.272913) | 4.980440 / 2.268929 (2.711511) | 2.659659 / 55.444624 (-52.784965) | 2.315174 / 6.876477 (-4.561303) | 2.475920 / 2.142072 (0.333848) | 0.586946 / 4.805227 (-4.218282) | 0.124291 / 6.500664 (-6.376373) | 0.060701 / 0.075469 (-0.014768) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.245062 / 1.841788 (-0.596725) | 18.201444 / 8.074308 (10.127136) | 13.723271 / 10.191392 (3.531879) | 0.130203 / 0.680424 (-0.550221) | 0.016773 / 0.534201 (-0.517428) | 0.332909 / 0.579283 (-0.246374) | 0.347469 / 0.434364 (-0.086895) | 0.381364 / 0.540337 (-0.158973) | 0.541723 / 1.386936 (-0.845213) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005934 / 0.011353 (-0.005419) | 0.003573 / 0.011008 (-0.007435) | 0.062195 / 0.038508 (0.023687) | 0.059026 / 0.023109 (0.035917) | 0.413993 / 0.275898 (0.138095) | 0.459552 / 0.323480 (0.136072) | 0.004610 / 0.007986 (-0.003376) | 0.002907 / 0.004328 (-0.001421) | 0.062983 / 0.004250 (0.058733) | 0.047797 / 0.037052 (0.010745) | 0.415461 / 0.258489 (0.156972) | 0.417424 / 0.293841 (0.123583) | 0.027098 / 0.128546 (-0.101449) | 0.008106 / 0.075646 (-0.067540) | 0.067600 / 0.419271 (-0.351672) | 0.041432 / 0.043533 (-0.002101) | 0.407861 / 0.255139 (0.152722) | 0.430774 / 0.283200 (0.147575) | 0.020738 / 0.141683 (-0.120945) | 1.435127 / 1.452155 (-0.017028) | 1.486961 / 1.492716 (-0.005755) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.231174 / 0.018006 (0.213168) | 0.421208 / 0.000490 (0.420718) | 0.005411 / 0.000200 (0.005211) | 0.000078 / 0.000054 (0.000023) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025362 / 0.037411 (-0.012049) | 0.078534 / 0.014526 (0.064008) | 0.085304 / 0.176557 (-0.091252) | 0.139048 / 0.737135 (-0.598087) | 0.087015 / 0.296338 (-0.209323) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.448506 / 0.215209 (0.233297) | 4.486694 / 2.077655 (2.409039) | 2.488022 / 1.504120 (0.983902) | 2.325321 / 1.541195 (0.784126) | 2.381311 / 1.468490 (0.912821) | 0.502102 / 4.584777 (-4.082675) | 3.018326 / 3.745712 (-0.727386) | 2.824922 / 5.269862 (-2.444940) | 1.857414 / 4.565676 (-2.708263) | 0.057514 / 0.424275 (-0.366761) | 0.006829 / 0.007607 (-0.000779) | 0.521939 / 0.226044 (0.295895) | 5.224393 / 2.268929 (2.955465) | 2.933132 / 55.444624 (-52.511492) | 2.661187 / 6.876477 (-4.215290) | 2.781950 / 2.142072 (0.639878) | 0.592927 / 4.805227 (-4.212300) | 0.126685 / 6.500664 (-6.373979) | 0.064188 / 0.075469 (-0.011281) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.351107 / 1.841788 (-0.490681) | 18.344453 / 8.074308 (10.270145) | 13.838788 / 10.191392 (3.647396) | 0.157881 / 0.680424 (-0.522543) | 0.016636 / 0.534201 (-0.517565) | 0.331597 / 0.579283 (-0.247686) | 0.345573 / 0.434364 (-0.088791) | 0.397361 / 0.540337 (-0.142976) | 0.534289 / 1.386936 (-0.852647) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#582e722a76534904c0f3038d32ebb8db88ce9128 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006399 / 0.011353 (-0.004954) | 0.003872 / 0.011008 (-0.007136) | 0.083722 / 0.038508 (0.045214) | 0.068845 / 0.023109 (0.045736) | 0.329112 / 0.275898 (0.053214) | 0.343295 / 0.323480 (0.019815) | 0.005137 / 0.007986 (-0.002849) | 0.003303 / 0.004328 (-0.001026) | 0.064495 / 0.004250 (0.060245) | 0.051448 / 0.037052 (0.014395) | 0.322554 / 0.258489 (0.064065) | 0.361934 / 0.293841 (0.068093) | 0.030821 / 0.128546 (-0.097726) | 0.008482 / 0.075646 (-0.067164) | 0.288136 / 0.419271 (-0.131135) | 0.051935 / 0.043533 (0.008402) | 0.308283 / 0.255139 (0.053144) | 0.343421 / 0.283200 (0.060221) | 0.023639 / 0.141683 (-0.118044) | 1.485442 / 1.452155 (0.033288) | 1.533282 / 1.492716 (0.040565) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.218163 / 0.018006 (0.200157) | 0.464473 / 0.000490 (0.463983) | 0.003097 / 0.000200 (0.002897) | 0.000081 / 0.000054 (0.000026) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.028650 / 0.037411 (-0.008761) | 0.083295 / 0.014526 (0.068769) | 0.096468 / 0.176557 (-0.080088) | 0.152086 / 0.737135 (-0.585050) | 0.102586 / 0.296338 (-0.193752) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.393038 / 0.215209 (0.177829) | 3.925514 / 2.077655 (1.847859) | 1.938419 / 1.504120 (0.434300) | 1.760265 / 1.541195 (0.219071) | 1.810024 / 1.468490 (0.341534) | 0.486232 / 4.584777 (-4.098545) | 3.618747 / 3.745712 (-0.126965) | 3.206950 / 5.269862 (-2.062912) | 1.999240 / 4.565676 (-2.566436) | 0.056986 / 0.424275 (-0.367289) | 0.007193 / 0.007607 (-0.000415) | 0.469313 / 0.226044 (0.243269) | 4.688670 / 2.268929 (2.419741) | 2.400332 / 55.444624 (-53.044292) | 2.074197 / 6.876477 (-4.802279) | 2.290823 / 2.142072 (0.148751) | 0.582339 / 4.805227 (-4.222888) | 0.134127 / 6.500664 (-6.366537) | 0.061061 / 0.075469 (-0.014408) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.272782 / 1.841788 (-0.569006) | 19.463375 / 8.074308 (11.389067) | 14.306819 / 10.191392 (4.115427) | 0.164608 / 0.680424 (-0.515816) | 0.018626 / 0.534201 (-0.515575) | 0.395225 / 0.579283 (-0.184058) | 0.408984 / 0.434364 (-0.025380) | 0.463364 / 0.540337 (-0.076974) | 0.630425 / 1.386936 (-0.756511) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006465 / 0.011353 (-0.004888) | 0.003975 / 0.011008 (-0.007033) | 0.063643 / 0.038508 (0.025134) | 0.075214 / 0.023109 (0.052105) | 0.361734 / 0.275898 (0.085836) | 0.396664 / 0.323480 (0.073184) | 0.005251 / 0.007986 (-0.002735) | 0.003249 / 0.004328 (-0.001080) | 0.063841 / 0.004250 (0.059591) | 0.054504 / 0.037052 (0.017451) | 0.374791 / 0.258489 (0.116302) | 0.399205 / 0.293841 (0.105364) | 0.031355 / 0.128546 (-0.097192) | 0.008483 / 0.075646 (-0.067163) | 0.070234 / 0.419271 (-0.349037) | 0.048336 / 0.043533 (0.004803) | 0.373484 / 0.255139 (0.118345) | 0.382174 / 0.283200 (0.098974) | 0.022560 / 0.141683 (-0.119123) | 1.449799 / 1.452155 (-0.002355) | 1.525255 / 1.492716 (0.032539) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.228350 / 0.018006 (0.210343) | 0.444344 / 0.000490 (0.443855) | 0.003699 / 0.000200 (0.003499) | 0.000079 / 0.000054 (0.000024) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030681 / 0.037411 (-0.006731) | 0.087340 / 0.014526 (0.072814) | 0.098636 / 0.176557 (-0.077920) | 0.151665 / 0.737135 (-0.585471) | 0.100840 / 0.296338 (-0.195498) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.417857 / 0.215209 (0.202648) | 4.168407 / 2.077655 (2.090752) | 2.201758 / 1.504120 (0.697638) | 1.997834 / 1.541195 (0.456639) | 2.127693 / 1.468490 (0.659202) | 0.486429 / 4.584777 (-4.098348) | 3.676335 / 3.745712 (-0.069378) | 3.226268 / 5.269862 (-2.043594) | 2.027255 / 4.565676 (-2.538422) | 0.056759 / 0.424275 (-0.367516) | 0.007628 / 0.007607 (0.000021) | 0.500482 / 0.226044 (0.274438) | 4.996236 / 2.268929 (2.727307) | 2.628884 / 55.444624 (-52.815740) | 2.347611 / 6.876477 (-4.528866) | 2.551328 / 2.142072 (0.409255) | 0.582449 / 4.805227 (-4.222778) | 0.132844 / 6.500664 (-6.367821) | 0.061791 / 0.075469 (-0.013678) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.373718 / 1.841788 (-0.468070) | 19.921217 / 8.074308 (11.846909) | 14.209642 / 10.191392 (4.018250) | 0.185334 / 0.680424 (-0.495090) | 0.018228 / 0.534201 (-0.515973) | 0.395549 / 0.579283 (-0.183734) | 0.404446 / 0.434364 (-0.029918) | 0.472456 / 0.540337 (-0.067882) | 0.622739 / 1.386936 (-0.764197) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#33f736eafa0f77de03aa6894ea4a6c923702e5d1 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006007 / 0.011353 (-0.005346) | 0.003588 / 0.011008 (-0.007420) | 0.080334 / 0.038508 (0.041826) | 0.058932 / 0.023109 (0.035823) | 0.404613 / 0.275898 (0.128715) | 0.438377 / 0.323480 (0.114897) | 0.003468 / 0.007986 (-0.004518) | 0.003702 / 0.004328 (-0.000627) | 0.062936 / 0.004250 (0.058686) | 0.047987 / 0.037052 (0.010934) | 0.411409 / 0.258489 (0.152920) | 0.450244 / 0.293841 (0.156403) | 0.027007 / 0.128546 (-0.101539) | 0.007932 / 0.075646 (-0.067714) | 0.261390 / 0.419271 (-0.157882) | 0.044992 / 0.043533 (0.001459) | 0.409730 / 0.255139 (0.154591) | 0.433331 / 0.283200 (0.150131) | 0.020446 / 0.141683 (-0.121237) | 1.425418 / 1.452155 (-0.026736) | 1.479242 / 1.492716 (-0.013475) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.187375 / 0.018006 (0.169368) | 0.428532 / 0.000490 (0.428043) | 0.003406 / 0.000200 (0.003206) | 0.000072 / 0.000054 (0.000018) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.024390 / 0.037411 (-0.013022) | 0.072571 / 0.014526 (0.058045) | 0.083513 / 0.176557 (-0.093044) | 0.144395 / 0.737135 (-0.592741) | 0.084813 / 0.296338 (-0.211526) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.409176 / 0.215209 (0.193967) | 4.078082 / 2.077655 (2.000428) | 1.913596 / 1.504120 (0.409476) | 1.718470 / 1.541195 (0.177275) | 1.753106 / 1.468490 (0.284616) | 0.494167 / 4.584777 (-4.090610) | 3.029531 / 3.745712 (-0.716181) | 2.807331 / 5.269862 (-2.462531) | 1.839471 / 4.565676 (-2.726206) | 0.057169 / 0.424275 (-0.367106) | 0.006433 / 0.007607 (-0.001175) | 0.482666 / 0.226044 (0.256621) | 4.817601 / 2.268929 (2.548673) | 2.449967 / 55.444624 (-52.994658) | 2.113891 / 6.876477 (-4.762586) | 2.399293 / 2.142072 (0.257221) | 0.578903 / 4.805227 (-4.226324) | 0.124306 / 6.500664 (-6.376358) | 0.061572 / 0.075469 (-0.013897) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.254692 / 1.841788 (-0.587096) | 18.414049 / 8.074308 (10.339741) | 13.992059 / 10.191392 (3.800667) | 0.146671 / 0.680424 (-0.533753) | 0.016925 / 0.534201 (-0.517275) | 0.333124 / 0.579283 (-0.246159) | 0.348007 / 0.434364 (-0.086357) | 0.378519 / 0.540337 (-0.161819) | 0.532540 / 1.386936 (-0.854396) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006050 / 0.011353 (-0.005303) | 0.003614 / 0.011008 (-0.007394) | 0.061707 / 0.038508 (0.023199) | 0.062874 / 0.023109 (0.039765) | 0.364760 / 0.275898 (0.088862) | 0.398136 / 0.323480 (0.074656) | 0.005598 / 0.007986 (-0.002388) | 0.002836 / 0.004328 (-0.001493) | 0.061880 / 0.004250 (0.057630) | 0.048165 / 0.037052 (0.011113) | 0.372656 / 0.258489 (0.114167) | 0.403967 / 0.293841 (0.110126) | 0.027046 / 0.128546 (-0.101501) | 0.008091 / 0.075646 (-0.067555) | 0.066783 / 0.419271 (-0.352489) | 0.041186 / 0.043533 (-0.002347) | 0.376009 / 0.255139 (0.120870) | 0.391769 / 0.283200 (0.108569) | 0.021020 / 0.141683 (-0.120663) | 1.514593 / 1.452155 (0.062438) | 1.548506 / 1.492716 (0.055790) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.237610 / 0.018006 (0.219604) | 0.434274 / 0.000490 (0.433784) | 0.009720 / 0.000200 (0.009520) | 0.000098 / 0.000054 (0.000043) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025605 / 0.037411 (-0.011807) | 0.078971 / 0.014526 (0.064445) | 0.088154 / 0.176557 (-0.088403) | 0.139112 / 0.737135 (-0.598023) | 0.088890 / 0.296338 (-0.207449) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.420027 / 0.215209 (0.204818) | 4.189493 / 2.077655 (2.111838) | 2.143907 / 1.504120 (0.639787) | 1.967032 / 1.541195 (0.425837) | 2.011845 / 1.468490 (0.543355) | 0.496692 / 4.584777 (-4.088085) | 3.025456 / 3.745712 (-0.720256) | 2.828436 / 5.269862 (-2.441426) | 1.860673 / 4.565676 (-2.705003) | 0.057199 / 0.424275 (-0.367076) | 0.006770 / 0.007607 (-0.000838) | 0.491281 / 0.226044 (0.265236) | 4.918065 / 2.268929 (2.649136) | 2.593172 / 55.444624 (-52.851452) | 2.250750 / 6.876477 (-4.625727) | 2.406235 / 2.142072 (0.264162) | 0.588648 / 4.805227 (-4.216579) | 0.125635 / 6.500664 (-6.375029) | 0.061697 / 0.075469 (-0.013773) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.374065 / 1.841788 (-0.467722) | 18.439315 / 8.074308 (10.365007) | 14.031660 / 10.191392 (3.840268) | 0.153665 / 0.680424 (-0.526759) | 0.016980 / 0.534201 (-0.517221) | 0.331799 / 0.579283 (-0.247484) | 0.343201 / 0.434364 (-0.091163) | 0.392445 / 0.540337 (-0.147892) | 0.530387 / 1.386936 (-0.856549) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#33f736eafa0f77de03aa6894ea4a6c923702e5d1 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008189 / 0.011353 (-0.003164) | 0.004598 / 0.011008 (-0.006410) | 0.102199 / 0.038508 (0.063691) | 0.077961 / 0.023109 (0.054852) | 0.364936 / 0.275898 (0.089038) | 0.402606 / 0.323480 (0.079126) | 0.005522 / 0.007986 (-0.002464) | 0.004007 / 0.004328 (-0.000322) | 0.071560 / 0.004250 (0.067310) | 0.055818 / 0.037052 (0.018765) | 0.378394 / 0.258489 (0.119905) | 0.428990 / 0.293841 (0.135149) | 0.043142 / 0.128546 (-0.085404) | 0.013254 / 0.075646 (-0.062392) | 0.331102 / 0.419271 (-0.088170) | 0.061407 / 0.043533 (0.017875) | 0.387397 / 0.255139 (0.132258) | 0.416062 / 0.283200 (0.132862) | 0.036330 / 0.141683 (-0.105353) | 1.735352 / 1.452155 (0.283198) | 1.773329 / 1.492716 (0.280613) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.188587 / 0.018006 (0.170581) | 0.519506 / 0.000490 (0.519016) | 0.004702 / 0.000200 (0.004502) | 0.000097 / 0.000054 (0.000043) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.027152 / 0.037411 (-0.010260) | 0.094296 / 0.014526 (0.079770) | 0.098155 / 0.176557 (-0.078402) | 0.162541 / 0.737135 (-0.574595) | 0.112092 / 0.296338 (-0.184246) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.537555 / 0.215209 (0.322346) | 5.486821 / 2.077655 (3.409166) | 2.377127 / 1.504120 (0.873008) | 2.073205 / 1.541195 (0.532011) | 2.075130 / 1.468490 (0.606640) | 0.783779 / 4.584777 (-3.800998) | 5.029524 / 3.745712 (1.283812) | 4.382724 / 5.269862 (-0.887138) | 2.836180 / 4.565676 (-1.729496) | 0.108840 / 0.424275 (-0.315435) | 0.008123 / 0.007607 (0.000516) | 0.673460 / 0.226044 (0.447416) | 6.674030 / 2.268929 (4.405102) | 3.208922 / 55.444624 (-52.235702) | 2.464908 / 6.876477 (-4.411568) | 2.661929 / 2.142072 (0.519856) | 0.962529 / 4.805227 (-3.842698) | 0.197974 / 6.500664 (-6.302690) | 0.066656 / 0.075469 (-0.008813) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.430373 / 1.841788 (-0.411415) | 21.180540 / 8.074308 (13.106232) | 19.027491 / 10.191392 (8.836099) | 0.217520 / 0.680424 (-0.462904) | 0.028038 / 0.534201 (-0.506163) | 0.435266 / 0.579283 (-0.144017) | 0.529510 / 0.434364 (0.095147) | 0.511011 / 0.540337 (-0.029327) | 0.728940 / 1.386936 (-0.657996) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007883 / 0.011353 (-0.003470) | 0.004448 / 0.011008 (-0.006560) | 0.071350 / 0.038508 (0.032842) | 0.075269 / 0.023109 (0.052160) | 0.396705 / 0.275898 (0.120807) | 0.457809 / 0.323480 (0.134329) | 0.005193 / 0.007986 (-0.002792) | 0.003695 / 0.004328 (-0.000633) | 0.078087 / 0.004250 (0.073836) | 0.054276 / 0.037052 (0.017224) | 0.412184 / 0.258489 (0.153695) | 0.452400 / 0.293841 (0.158559) | 0.049762 / 0.128546 (-0.078784) | 0.013206 / 0.075646 (-0.062440) | 0.085985 / 0.419271 (-0.333287) | 0.058837 / 0.043533 (0.015304) | 0.432481 / 0.255139 (0.177342) | 0.433260 / 0.283200 (0.150060) | 0.031190 / 0.141683 (-0.110493) | 1.582707 / 1.452155 (0.130552) | 1.664457 / 1.492716 (0.171741) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.223639 / 0.018006 (0.205633) | 0.524388 / 0.000490 (0.523899) | 0.005489 / 0.000200 (0.005289) | 0.000099 / 0.000054 (0.000045) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030182 / 0.037411 (-0.007230) | 0.089309 / 0.014526 (0.074783) | 0.103306 / 0.176557 (-0.073250) | 0.162624 / 0.737135 (-0.574511) | 0.108957 / 0.296338 (-0.187381) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.577423 / 0.215209 (0.362214) | 5.900154 / 2.077655 (3.822500) | 2.687369 / 1.504120 (1.183249) | 2.513061 / 1.541195 (0.971866) | 2.506453 / 1.468490 (1.037963) | 0.830838 / 4.584777 (-3.753939) | 5.032195 / 3.745712 (1.286483) | 4.396827 / 5.269862 (-0.873035) | 2.884230 / 4.565676 (-1.681447) | 0.102239 / 0.424275 (-0.322036) | 0.008178 / 0.007607 (0.000571) | 0.710027 / 0.226044 (0.483983) | 7.149626 / 2.268929 (4.880698) | 3.403605 / 55.444624 (-52.041019) | 2.661970 / 6.876477 (-4.214506) | 2.760227 / 2.142072 (0.618154) | 1.043981 / 4.805227 (-3.761246) | 0.195028 / 6.500664 (-6.305636) | 0.065211 / 0.075469 (-0.010258) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.581265 / 1.841788 (-0.260522) | 21.640230 / 8.074308 (13.565922) | 19.031860 / 10.191392 (8.840468) | 0.196903 / 0.680424 (-0.483520) | 0.027061 / 0.534201 (-0.507140) | 0.444995 / 0.579283 (-0.134288) | 0.528195 / 0.434364 (0.093831) | 0.521540 / 0.540337 (-0.018797) | 0.730204 / 1.386936 (-0.656732) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#33f736eafa0f77de03aa6894ea4a6c923702e5d1 \"CML watermark\")\n" ]

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[ "You can avoid this by using the `revision` parameter in `load_dataset` to always force downloading a specific commit (if not specified it defaults to HEAD, hence the redownload).", "Thanks @mariosasko this works well, looks like I should have read the documentation a bit more carefully. \r\n\r\nIt is still a bit confusing which hash I should provide: passing `revision = c8fd66e85f086e3abb11eeee55b1737a3d1e8487` from https://huggingface.co/datasets/mozilla-foundation/common_voice_8_0/commits/main caused the cached version at `~/.cache/huggingface/datasets/mozilla-foundation___common_voice_8_0/en/8.0.0/b2f8b72f8f30b2e98c41ccf855954d9e35a5fa498c43332df198534ff9797a4a` to be loaded, so I had to know that it was the previous commit unless I've missed something else." ]

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[ "Hi! This should be fixed in the latest (patch) release (run `pip install -U datasets` to install it). This behavior was due to a bug in our authentication logic." ]

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[ "Thanks for reporting! This is a bug in converting the `ArrayXD` types to YAML. It will be fixed soon." ]

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[ "any idea?", "This should work: `load_dataset(\"path/to/downloaded_repo\")`\r\n\r\n`load_from_disk` is intended to be used on directories created with `Dataset.save_to_disk` or `DatasetDict.save_to_disk`", "> This should work: `load_dataset(\"path/to/downloaded_repo\")`\r\n> \r\n> `load_from_disk` is intended to be used on directories created with `Dataset.save_to_disk` or `DatasetDict.save_to_disk`\r\n\r\nThanks for your help. This works." ]

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[ "This is expected behavior. You must provide `cache_file_name` when performing `.map` on an in-memory dataset for the result to be cached." ]

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[ "Thanks for reporting, @610v4nn1.\r\n\r\nIndeed, the source data files are no longer available. We have contacted the authors of the dataset and they report that Amazon has decided to stop distributing the multilingual reviews dataset.\r\n\r\nWe are adding a notification about this issue to the dataset card.\r\n\r\nSee: https://huggingface.co/datasets/amazon_reviews_multi/discussions/4#64c3898db63057f1fd3ce1a0 ", "The dataset can be accessed from https://www.kaggle.com/datasets/mexwell/amazon-reviews-multi." ]

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[ "Yesterday I waited for more than 12 hours to make sure it was really **stuck** instead of proceeding too slow.", "I've had similar weird issues with `load_dataset` as well. Not multiple files, but dataset is quite big, about 50G.", "We use a generic multiprocessing code, so there is little we can do about this - unfortunately, turning off multiprocessing seems to be the only solution. Multithreading would make our code easier to maintain and (most likely) avoid issues such as this one, but we cannot use it until the GIL is dropped (no-GIL Python should be released in 2024, so we can start exploring this then)", "The problem seems to be the `Generating train split`. Is it possible to avoid that? I have a dataset saved, just want to load it but somehow running into issues with that again.", "Hey guys, recently I ran into this problem again and I spent one whole day trying to locate the problem. Finally I found the problem seems to be with `pyarrow`'s json parser, and it seems a long-existing problem. Similar issue can be found in #2181. Anyway, my solution is to adjust the `load_dataset`'s parameter `chunksize`. You can inspect the parameter set in `datasets/packaged_modules/json/json.py`, now the actual chunksize should be very small, and you can increase the value. For me, `chunksize=10<<23` could solve the stuck problem. But I also find that too big `chunksize`, like `10 << 30`, would also cause a stuck, which is rather weird. I think I may explore this when I am free. And hope this can help those who also encounter the same problem. ", "Experiencing the same issue with the `kaist-ai/Feedback-Collection` dataset, which is comparatively small i.e. 100k rows.\r\nCode to reproduce\r\n\r\n```\r\nfrom datasets import load_dataset\r\ndataset = load_dataset(\"kaist-ai/Feedback-Collection\")\r\n```\r\n\r\nI have tried setting `num_proc=1` as well as `chunksize=1024, 64` but problem persists. Any pointers?" ]

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[ "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007678 / 0.011353 (-0.003675) | 0.004233 / 0.011008 (-0.006776) | 0.095934 / 0.038508 (0.057426) | 0.064201 / 0.023109 (0.041092) | 0.345765 / 0.275898 (0.069867) | 0.383089 / 0.323480 (0.059609) | 0.004084 / 0.007986 (-0.003902) | 0.003311 / 0.004328 (-0.001017) | 0.072367 / 0.004250 (0.068117) | 0.048252 / 0.037052 (0.011200) | 0.338340 / 0.258489 (0.079851) | 0.391627 / 0.293841 (0.097786) | 0.045203 / 0.128546 (-0.083343) | 0.013494 / 0.075646 (-0.062153) | 0.314097 / 0.419271 (-0.105174) | 0.058183 / 0.043533 (0.014650) | 0.353946 / 0.255139 (0.098807) | 0.385181 / 0.283200 (0.101981) | 0.033111 / 0.141683 (-0.108572) | 1.578489 / 1.452155 (0.126335) | 1.631660 / 1.492716 (0.138944) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.202592 / 0.018006 (0.184586) | 0.506450 / 0.000490 (0.505961) | 0.004630 / 0.000200 (0.004430) | 0.000105 / 0.000054 (0.000050) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.024761 / 0.037411 (-0.012651) | 0.086295 / 0.014526 (0.071769) | 0.094063 / 0.176557 (-0.082494) | 0.154189 / 0.737135 (-0.582947) | 0.096273 / 0.296338 (-0.200065) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.581731 / 0.215209 (0.366522) | 5.552020 / 2.077655 (3.474365) | 2.430800 / 1.504120 (0.926680) | 2.130864 / 1.541195 (0.589669) | 2.092802 / 1.468490 (0.624312) | 0.833956 / 4.584777 (-3.750821) | 4.840859 / 3.745712 (1.095147) | 4.267812 / 5.269862 (-1.002050) | 2.663245 / 4.565676 (-1.902432) | 0.093195 / 0.424275 (-0.331080) | 0.007942 / 0.007607 (0.000335) | 0.651457 / 0.226044 (0.425413) | 6.782986 / 2.268929 (4.514058) | 3.103307 / 55.444624 (-52.341318) | 2.373933 / 6.876477 (-4.502544) | 2.571613 / 2.142072 (0.429540) | 0.981389 / 4.805227 (-3.823839) | 0.199019 / 6.500664 (-6.301645) | 0.065828 / 0.075469 (-0.009641) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.429778 / 1.841788 (-0.412009) | 20.967563 / 8.074308 (12.893255) | 19.329723 / 10.191392 (9.138331) | 0.222048 / 0.680424 (-0.458376) | 0.033507 / 0.534201 (-0.500694) | 0.436801 / 0.579283 (-0.142482) | 0.530197 / 0.434364 (0.095833) | 0.491532 / 0.540337 (-0.048805) | 0.718216 / 1.386936 (-0.668720) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007798 / 0.011353 (-0.003555) | 0.004748 / 0.011008 (-0.006260) | 0.070847 / 0.038508 (0.032339) | 0.069338 / 0.023109 (0.046229) | 0.400890 / 0.275898 (0.124992) | 0.429482 / 0.323480 (0.106002) | 0.006469 / 0.007986 (-0.001517) | 0.003514 / 0.004328 (-0.000814) | 0.069049 / 0.004250 (0.064798) | 0.059800 / 0.037052 (0.022748) | 0.415644 / 0.258489 (0.157155) | 0.432562 / 0.293841 (0.138721) | 0.043778 / 0.128546 (-0.084768) | 0.015141 / 0.075646 (-0.060506) | 0.081521 / 0.419271 (-0.337750) | 0.054692 / 0.043533 (0.011160) | 0.404497 / 0.255139 (0.149358) | 0.419783 / 0.283200 (0.136583) | 0.029588 / 0.141683 (-0.112094) | 1.593506 / 1.452155 (0.141351) | 1.615977 / 1.492716 (0.123261) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.270981 / 0.018006 (0.252975) | 0.522074 / 0.000490 (0.521584) | 0.026568 / 0.000200 (0.026368) | 0.000126 / 0.000054 (0.000072) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031551 / 0.037411 (-0.005861) | 0.086723 / 0.014526 (0.072197) | 0.103315 / 0.176557 (-0.073242) | 0.154692 / 0.737135 (-0.582443) | 0.099472 / 0.296338 (-0.196866) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.570238 / 0.215209 (0.355029) | 5.655963 / 2.077655 (3.578308) | 2.662670 / 1.504120 (1.158550) | 2.380903 / 1.541195 (0.839709) | 2.409467 / 1.468490 (0.940977) | 0.828055 / 4.584777 (-3.756722) | 4.964698 / 3.745712 (1.218986) | 4.299995 / 5.269862 (-0.969867) | 2.824162 / 4.565676 (-1.741514) | 0.095872 / 0.424275 (-0.328403) | 0.007907 / 0.007607 (0.000300) | 0.701595 / 0.226044 (0.475551) | 7.131965 / 2.268929 (4.863036) | 3.250554 / 55.444624 (-52.194070) | 2.531916 / 6.876477 (-4.344561) | 2.717908 / 2.142072 (0.575835) | 1.014479 / 4.805227 (-3.790748) | 0.223804 / 6.500664 (-6.276861) | 0.071893 / 0.075469 (-0.003576) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.541702 / 1.841788 (-0.300086) | 21.668219 / 8.074308 (13.593911) | 18.916032 / 10.191392 (8.724640) | 0.205915 / 0.680424 (-0.474508) | 0.026356 / 0.534201 (-0.507845) | 0.429122 / 0.579283 (-0.150161) | 0.506110 / 0.434364 (0.071746) | 0.510148 / 0.540337 (-0.030190) | 0.724699 / 1.386936 (-0.662237) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#c4ca93ff86551b398c979862e7be7305725a240b \"CML watermark\")\n", "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006884 / 0.011353 (-0.004469) | 0.004492 / 0.011008 (-0.006516) | 0.085439 / 0.038508 (0.046931) | 0.083905 / 0.023109 (0.060796) | 0.313604 / 0.275898 (0.037706) | 0.354683 / 0.323480 (0.031203) | 0.006535 / 0.007986 (-0.001451) | 0.004318 / 0.004328 (-0.000011) | 0.066129 / 0.004250 (0.061879) | 0.057568 / 0.037052 (0.020516) | 0.317162 / 0.258489 (0.058672) | 0.372501 / 0.293841 (0.078660) | 0.031059 / 0.128546 (-0.097488) | 0.009013 / 0.075646 (-0.066634) | 0.288794 / 0.419271 (-0.130478) | 0.053326 / 0.043533 (0.009793) | 0.314318 / 0.255139 (0.059179) | 0.357505 / 0.283200 (0.074305) | 0.027020 / 0.141683 (-0.114663) | 1.530653 / 1.452155 (0.078498) | 1.599782 / 1.492716 (0.107066) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.278788 / 0.018006 (0.260782) | 0.626822 / 0.000490 (0.626333) | 0.003780 / 0.000200 (0.003580) | 0.000086 / 0.000054 (0.000032) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031703 / 0.037411 (-0.005708) | 0.085654 / 0.014526 (0.071128) | 0.754858 / 0.176557 (0.578301) | 0.212251 / 0.737135 (-0.524885) | 0.171344 / 0.296338 (-0.124994) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.382291 / 0.215209 (0.167082) | 3.825612 / 2.077655 (1.747958) | 1.874553 / 1.504120 (0.370433) | 1.712574 / 1.541195 (0.171379) | 1.791479 / 1.468490 (0.322989) | 0.481005 / 4.584777 (-4.103772) | 3.530559 / 3.745712 (-0.215153) | 3.395305 / 5.269862 (-1.874557) | 2.133747 / 4.565676 (-2.431930) | 0.056139 / 0.424275 (-0.368136) | 0.007424 / 0.007607 (-0.000183) | 0.458321 / 0.226044 (0.232277) | 4.577665 / 2.268929 (2.308736) | 2.380233 / 55.444624 (-53.064392) | 2.004060 / 6.876477 (-4.872417) | 2.290712 / 2.142072 (0.148639) | 0.570157 / 4.805227 (-4.235070) | 0.131670 / 6.500664 (-6.368994) | 0.060684 / 0.075469 (-0.014785) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.294929 / 1.841788 (-0.546858) | 21.386663 / 8.074308 (13.312355) | 14.389440 / 10.191392 (4.198048) | 0.171177 / 0.680424 (-0.509247) | 0.018660 / 0.534201 (-0.515541) | 0.394385 / 0.579283 (-0.184898) | 0.424942 / 0.434364 (-0.009422) | 0.463618 / 0.540337 (-0.076719) | 0.651499 / 1.386936 (-0.735437) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007079 / 0.011353 (-0.004274) | 0.004615 / 0.011008 (-0.006393) | 0.066300 / 0.038508 (0.027792) | 0.092636 / 0.023109 (0.069527) | 0.399080 / 0.275898 (0.123182) | 0.429873 / 0.323480 (0.106393) | 0.006689 / 0.007986 (-0.001297) | 0.004358 / 0.004328 (0.000029) | 0.067155 / 0.004250 (0.062905) | 0.064040 / 0.037052 (0.026988) | 0.399905 / 0.258489 (0.141416) | 0.448237 / 0.293841 (0.154397) | 0.031985 / 0.128546 (-0.096561) | 0.009053 / 0.075646 (-0.066593) | 0.071904 / 0.419271 (-0.347368) | 0.048759 / 0.043533 (0.005227) | 0.386797 / 0.255139 (0.131658) | 0.411240 / 0.283200 (0.128040) | 0.028568 / 0.141683 (-0.113115) | 1.501037 / 1.452155 (0.048882) | 1.594560 / 1.492716 (0.101844) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.300756 / 0.018006 (0.282750) | 0.631220 / 0.000490 (0.630730) | 0.010163 / 0.000200 (0.009963) | 0.000144 / 0.000054 (0.000089) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.033716 / 0.037411 (-0.003695) | 0.093562 / 0.014526 (0.079037) | 0.106975 / 0.176557 (-0.069582) | 0.161919 / 0.737135 (-0.575216) | 0.113397 / 0.296338 (-0.182942) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.410392 / 0.215209 (0.195183) | 4.094411 / 2.077655 (2.016756) | 2.085868 / 1.504120 (0.581748) | 1.959589 / 1.541195 (0.418394) | 2.096683 / 1.468490 (0.628193) | 0.494593 / 4.584777 (-4.090184) | 3.854302 / 3.745712 (0.108590) | 3.742303 / 5.269862 (-1.527558) | 2.379983 / 4.565676 (-2.185693) | 0.058640 / 0.424275 (-0.365635) | 0.008092 / 0.007607 (0.000484) | 0.486957 / 0.226044 (0.260912) | 4.855784 / 2.268929 (2.586855) | 2.654029 / 55.444624 (-52.790595) | 2.237627 / 6.876477 (-4.638850) | 2.536955 / 2.142072 (0.394882) | 0.622398 / 4.805227 (-4.182829) | 0.139212 / 6.500664 (-6.361452) | 0.062805 / 0.075469 (-0.012664) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.374862 / 1.841788 (-0.466926) | 22.797015 / 8.074308 (14.722707) | 14.393995 / 10.191392 (4.202603) | 0.196603 / 0.680424 (-0.483821) | 0.018602 / 0.534201 (-0.515599) | 0.394568 / 0.579283 (-0.184715) | 0.408792 / 0.434364 (-0.025572) | 0.486706 / 0.540337 (-0.053631) | 0.652365 / 1.386936 (-0.734571) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#5713299a88f527ea162a099c2bf2cbceada8fb86 \"CML watermark\")\n" ]

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[ "Hi! We use PyArrow to read JSON files, and PyArrow doesn't allow different value types in the same column. #5776 should address this.\r\n\r\nIn the meantime, you can combine `Dataset.from_generator` with the above code to cast the values to the same type. ", "Thanks for your help!" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006706 / 0.011353 (-0.004647) | 0.004016 / 0.011008 (-0.006992) | 0.083696 / 0.038508 (0.045188) | 0.074340 / 0.023109 (0.051230) | 0.327338 / 0.275898 (0.051440) | 0.366663 / 0.323480 (0.043183) | 0.004052 / 0.007986 (-0.003934) | 0.003423 / 0.004328 (-0.000906) | 0.064576 / 0.004250 (0.060326) | 0.055037 / 0.037052 (0.017985) | 0.325089 / 0.258489 (0.066600) | 0.379986 / 0.293841 (0.086145) | 0.031614 / 0.128546 (-0.096932) | 0.008553 / 0.075646 (-0.067094) | 0.287430 / 0.419271 (-0.131841) | 0.053032 / 0.043533 (0.009499) | 0.318990 / 0.255139 (0.063851) | 0.364426 / 0.283200 (0.081226) | 0.024926 / 0.141683 (-0.116757) | 1.461835 / 1.452155 (0.009680) | 1.557172 / 1.492716 (0.064456) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.212430 / 0.018006 (0.194424) | 0.512891 / 0.000490 (0.512402) | 0.004772 / 0.000200 (0.004572) | 0.000132 / 0.000054 (0.000078) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.027873 / 0.037411 (-0.009538) | 0.085598 / 0.014526 (0.071072) | 0.097330 / 0.176557 (-0.079226) | 0.152235 / 0.737135 (-0.584900) | 0.097787 / 0.296338 (-0.198552) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.384645 / 0.215209 (0.169436) | 3.841161 / 2.077655 (1.763506) | 1.863696 / 1.504120 (0.359577) | 1.685082 / 1.541195 (0.143887) | 1.772904 / 1.468490 (0.304414) | 0.480177 / 4.584777 (-4.104599) | 3.601537 / 3.745712 (-0.144175) | 3.273647 / 5.269862 (-1.996214) | 2.014415 / 4.565676 (-2.551261) | 0.056668 / 0.424275 (-0.367607) | 0.007257 / 0.007607 (-0.000350) | 0.458194 / 0.226044 (0.232150) | 4.577311 / 2.268929 (2.308382) | 2.333983 / 55.444624 (-53.110641) | 1.964508 / 6.876477 (-4.911969) | 2.193379 / 2.142072 (0.051307) | 0.577557 / 4.805227 (-4.227670) | 0.133899 / 6.500664 (-6.366765) | 0.060804 / 0.075469 (-0.014665) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.249490 / 1.841788 (-0.592298) | 19.791875 / 8.074308 (11.717567) | 14.418728 / 10.191392 (4.227336) | 0.167788 / 0.680424 (-0.512636) | 0.018993 / 0.534201 (-0.515208) | 0.396141 / 0.579283 (-0.183142) | 0.412427 / 0.434364 (-0.021937) | 0.456718 / 0.540337 (-0.083619) | 0.641383 / 1.386936 (-0.745553) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006546 / 0.011353 (-0.004807) | 0.004059 / 0.011008 (-0.006949) | 0.064523 / 0.038508 (0.026015) | 0.074988 / 0.023109 (0.051878) | 0.388932 / 0.275898 (0.113034) | 0.424496 / 0.323480 (0.101016) | 0.005226 / 0.007986 (-0.002760) | 0.003409 / 0.004328 (-0.000920) | 0.064284 / 0.004250 (0.060034) | 0.056829 / 0.037052 (0.019777) | 0.386457 / 0.258489 (0.127968) | 0.428063 / 0.293841 (0.134222) | 0.031411 / 0.128546 (-0.097136) | 0.008577 / 0.075646 (-0.067070) | 0.070357 / 0.419271 (-0.348915) | 0.048920 / 0.043533 (0.005388) | 0.385197 / 0.255139 (0.130058) | 0.407167 / 0.283200 (0.123967) | 0.024469 / 0.141683 (-0.117214) | 1.482733 / 1.452155 (0.030578) | 1.539027 / 1.492716 (0.046311) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.227532 / 0.018006 (0.209526) | 0.448792 / 0.000490 (0.448302) | 0.004139 / 0.000200 (0.003939) | 0.000085 / 0.000054 (0.000030) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031004 / 0.037411 (-0.006408) | 0.088163 / 0.014526 (0.073637) | 0.101452 / 0.176557 (-0.075105) | 0.152907 / 0.737135 (-0.584229) | 0.102325 / 0.296338 (-0.194014) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.418092 / 0.215209 (0.202883) | 4.162277 / 2.077655 (2.084623) | 2.232987 / 1.504120 (0.728867) | 2.143583 / 1.541195 (0.602388) | 2.246142 / 1.468490 (0.777652) | 0.490181 / 4.584777 (-4.094596) | 3.631514 / 3.745712 (-0.114198) | 3.315025 / 5.269862 (-1.954837) | 2.101853 / 4.565676 (-2.463823) | 0.057905 / 0.424275 (-0.366370) | 0.007686 / 0.007607 (0.000079) | 0.489965 / 0.226044 (0.263921) | 4.894375 / 2.268929 (2.625447) | 2.655459 / 55.444624 (-52.789165) | 2.262211 / 6.876477 (-4.614266) | 2.505335 / 2.142072 (0.363263) | 0.591329 / 4.805227 (-4.213898) | 0.133554 / 6.500664 (-6.367110) | 0.061922 / 0.075469 (-0.013547) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.347483 / 1.841788 (-0.494304) | 20.027011 / 8.074308 (11.952703) | 14.430737 / 10.191392 (4.239345) | 0.165767 / 0.680424 (-0.514657) | 0.018460 / 0.534201 (-0.515741) | 0.393790 / 0.579283 (-0.185494) | 0.407213 / 0.434364 (-0.027151) | 0.474459 / 0.540337 (-0.065879) | 0.635054 / 1.386936 (-0.751882) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#7f575111481e2e2f4d4fc9180771797f69ebcc44 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007652 / 0.011353 (-0.003701) | 0.004581 / 0.011008 (-0.006427) | 0.101629 / 0.038508 (0.063121) | 0.090233 / 0.023109 (0.067124) | 0.392789 / 0.275898 (0.116891) | 0.432163 / 0.323480 (0.108683) | 0.004694 / 0.007986 (-0.003292) | 0.003927 / 0.004328 (-0.000401) | 0.076533 / 0.004250 (0.072282) | 0.064442 / 0.037052 (0.027390) | 0.397539 / 0.258489 (0.139050) | 0.441323 / 0.293841 (0.147482) | 0.036278 / 0.128546 (-0.092268) | 0.009810 / 0.075646 (-0.065836) | 0.343537 / 0.419271 (-0.075734) | 0.060273 / 0.043533 (0.016740) | 0.395023 / 0.255139 (0.139884) | 0.427210 / 0.283200 (0.144011) | 0.031717 / 0.141683 (-0.109966) | 1.771221 / 1.452155 (0.319066) | 1.896336 / 1.492716 (0.403620) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.235081 / 0.018006 (0.217075) | 0.512781 / 0.000490 (0.512292) | 0.004920 / 0.000200 (0.004721) | 0.000097 / 0.000054 (0.000042) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.033525 / 0.037411 (-0.003887) | 0.104416 / 0.014526 (0.089890) | 0.115695 / 0.176557 (-0.060861) | 0.182216 / 0.737135 (-0.554919) | 0.116259 / 0.296338 (-0.180079) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.454817 / 0.215209 (0.239608) | 4.527753 / 2.077655 (2.450098) | 2.222273 / 1.504120 (0.718153) | 2.038448 / 1.541195 (0.497253) | 2.179444 / 1.468490 (0.710953) | 0.573665 / 4.584777 (-4.011112) | 4.504943 / 3.745712 (0.759231) | 3.848435 / 5.269862 (-1.421427) | 2.455185 / 4.565676 (-2.110491) | 0.067985 / 0.424275 (-0.356290) | 0.008719 / 0.007607 (0.001112) | 0.552405 / 0.226044 (0.326360) | 5.515251 / 2.268929 (3.246322) | 2.851557 / 55.444624 (-52.593067) | 2.463070 / 6.876477 (-4.413407) | 2.761596 / 2.142072 (0.619524) | 0.688561 / 4.805227 (-4.116667) | 0.159946 / 6.500664 (-6.340718) | 0.075435 / 0.075469 (-0.000034) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.505178 / 1.841788 (-0.336610) | 23.555236 / 8.074308 (15.480928) | 17.272759 / 10.191392 (7.081367) | 0.206495 / 0.680424 (-0.473928) | 0.021869 / 0.534201 (-0.512332) | 0.469271 / 0.579283 (-0.110012) | 0.469200 / 0.434364 (0.034837) | 0.542437 / 0.540337 (0.002100) | 0.792864 / 1.386936 (-0.594072) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008151 / 0.011353 (-0.003202) | 0.004992 / 0.011008 (-0.006016) | 0.079545 / 0.038508 (0.041037) | 0.100234 / 0.023109 (0.077125) | 0.492791 / 0.275898 (0.216893) | 0.511315 / 0.323480 (0.187835) | 0.006878 / 0.007986 (-0.001108) | 0.003807 / 0.004328 (-0.000522) | 0.080876 / 0.004250 (0.076625) | 0.076734 / 0.037052 (0.039681) | 0.518247 / 0.258489 (0.259758) | 0.524202 / 0.293841 (0.230361) | 0.039896 / 0.128546 (-0.088650) | 0.016581 / 0.075646 (-0.059065) | 0.101228 / 0.419271 (-0.318043) | 0.061990 / 0.043533 (0.018457) | 0.490611 / 0.255139 (0.235472) | 0.514930 / 0.283200 (0.231730) | 0.028680 / 0.141683 (-0.113002) | 1.966215 / 1.452155 (0.514061) | 2.047757 / 1.492716 (0.555040) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.286807 / 0.018006 (0.268801) | 0.506448 / 0.000490 (0.505959) | 0.005867 / 0.000200 (0.005667) | 0.000110 / 0.000054 (0.000056) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.037141 / 0.037411 (-0.000270) | 0.113232 / 0.014526 (0.098706) | 0.121201 / 0.176557 (-0.055356) | 0.185472 / 0.737135 (-0.551663) | 0.122896 / 0.296338 (-0.173442) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.514491 / 0.215209 (0.299282) | 4.942457 / 2.077655 (2.864802) | 2.533519 / 1.504120 (1.029399) | 2.371011 / 1.541195 (0.829817) | 2.495604 / 1.468490 (1.027114) | 0.576224 / 4.584777 (-4.008553) | 4.368584 / 3.745712 (0.622872) | 3.885598 / 5.269862 (-1.384263) | 2.443596 / 4.565676 (-2.122080) | 0.068905 / 0.424275 (-0.355371) | 0.009171 / 0.007607 (0.001564) | 0.584977 / 0.226044 (0.358932) | 5.835220 / 2.268929 (3.566291) | 3.189037 / 55.444624 (-52.255588) | 2.753228 / 6.876477 (-4.123249) | 3.009062 / 2.142072 (0.866990) | 0.690179 / 4.805227 (-4.115048) | 0.157981 / 6.500664 (-6.342683) | 0.074518 / 0.075469 (-0.000951) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.599907 / 1.841788 (-0.241880) | 23.853903 / 8.074308 (15.779595) | 17.419796 / 10.191392 (7.228404) | 0.204974 / 0.680424 (-0.475450) | 0.022014 / 0.534201 (-0.512187) | 0.473379 / 0.579283 (-0.105905) | 0.461346 / 0.434364 (0.026982) | 0.564881 / 0.540337 (0.024543) | 0.752933 / 1.386936 (-0.634003) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#f49c9ca993fa600fae0e327636d52657328e7ffb \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006547 / 0.011353 (-0.004805) | 0.004020 / 0.011008 (-0.006988) | 0.086828 / 0.038508 (0.048320) | 0.072924 / 0.023109 (0.049815) | 0.312847 / 0.275898 (0.036949) | 0.344605 / 0.323480 (0.021125) | 0.004117 / 0.007986 (-0.003868) | 0.004365 / 0.004328 (0.000037) | 0.066755 / 0.004250 (0.062505) | 0.053248 / 0.037052 (0.016195) | 0.315744 / 0.258489 (0.057255) | 0.362426 / 0.293841 (0.068585) | 0.030732 / 0.128546 (-0.097814) | 0.008516 / 0.075646 (-0.067130) | 0.289927 / 0.419271 (-0.129345) | 0.052115 / 0.043533 (0.008582) | 0.308026 / 0.255139 (0.052887) | 0.343115 / 0.283200 (0.059915) | 0.024131 / 0.141683 (-0.117551) | 1.464290 / 1.452155 (0.012135) | 1.559359 / 1.492716 (0.066642) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.216744 / 0.018006 (0.198738) | 0.473156 / 0.000490 (0.472666) | 0.004176 / 0.000200 (0.003977) | 0.000093 / 0.000054 (0.000039) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.028500 / 0.037411 (-0.008911) | 0.083892 / 0.014526 (0.069366) | 0.131851 / 0.176557 (-0.044705) | 0.162202 / 0.737135 (-0.574933) | 0.127989 / 0.296338 (-0.168349) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.404555 / 0.215209 (0.189346) | 4.035989 / 2.077655 (1.958334) | 2.025174 / 1.504120 (0.521054) | 1.835785 / 1.541195 (0.294590) | 1.909819 / 1.468490 (0.441329) | 0.475352 / 4.584777 (-4.109425) | 3.548055 / 3.745712 (-0.197657) | 3.234782 / 5.269862 (-2.035080) | 2.010305 / 4.565676 (-2.555371) | 0.056507 / 0.424275 (-0.367768) | 0.007259 / 0.007607 (-0.000348) | 0.482021 / 0.226044 (0.255977) | 4.818559 / 2.268929 (2.549631) | 2.528765 / 55.444624 (-52.915860) | 2.159804 / 6.876477 (-4.716673) | 2.380640 / 2.142072 (0.238567) | 0.585005 / 4.805227 (-4.220222) | 0.133811 / 6.500664 (-6.366853) | 0.060686 / 0.075469 (-0.014783) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.260902 / 1.841788 (-0.580886) | 19.500215 / 8.074308 (11.425907) | 14.164698 / 10.191392 (3.973306) | 0.172492 / 0.680424 (-0.507932) | 0.018221 / 0.534201 (-0.515980) | 0.392609 / 0.579283 (-0.186674) | 0.423265 / 0.434364 (-0.011099) | 0.454705 / 0.540337 (-0.085633) | 0.639856 / 1.386936 (-0.747080) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006656 / 0.011353 (-0.004697) | 0.003903 / 0.011008 (-0.007106) | 0.063780 / 0.038508 (0.025272) | 0.076848 / 0.023109 (0.053739) | 0.379429 / 0.275898 (0.103531) | 0.442554 / 0.323480 (0.119074) | 0.005327 / 0.007986 (-0.002658) | 0.003318 / 0.004328 (-0.001010) | 0.064307 / 0.004250 (0.060056) | 0.057183 / 0.037052 (0.020131) | 0.398163 / 0.258489 (0.139674) | 0.448532 / 0.293841 (0.154691) | 0.031322 / 0.128546 (-0.097224) | 0.008462 / 0.075646 (-0.067184) | 0.070354 / 0.419271 (-0.348917) | 0.048420 / 0.043533 (0.004887) | 0.368304 / 0.255139 (0.113165) | 0.428786 / 0.283200 (0.145587) | 0.023921 / 0.141683 (-0.117762) | 1.499281 / 1.452155 (0.047126) | 1.554448 / 1.492716 (0.061731) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.238830 / 0.018006 (0.220824) | 0.464196 / 0.000490 (0.463706) | 0.004812 / 0.000200 (0.004613) | 0.000098 / 0.000054 (0.000043) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031642 / 0.037411 (-0.005770) | 0.089205 / 0.014526 (0.074679) | 0.101577 / 0.176557 (-0.074980) | 0.154993 / 0.737135 (-0.582142) | 0.102935 / 0.296338 (-0.193403) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.415218 / 0.215209 (0.200009) | 4.137711 / 2.077655 (2.060056) | 2.128757 / 1.504120 (0.624637) | 1.961086 / 1.541195 (0.419891) | 2.047552 / 1.468490 (0.579061) | 0.486953 / 4.584777 (-4.097824) | 3.587851 / 3.745712 (-0.157861) | 3.280771 / 5.269862 (-1.989090) | 2.016980 / 4.565676 (-2.548697) | 0.057284 / 0.424275 (-0.366991) | 0.007705 / 0.007607 (0.000097) | 0.492242 / 0.226044 (0.266197) | 4.923213 / 2.268929 (2.654285) | 2.672528 / 55.444624 (-52.772097) | 2.292862 / 6.876477 (-4.583614) | 2.517410 / 2.142072 (0.375337) | 0.614798 / 4.805227 (-4.190429) | 0.149642 / 6.500664 (-6.351023) | 0.062898 / 0.075469 (-0.012571) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.323266 / 1.841788 (-0.518522) | 19.891504 / 8.074308 (11.817196) | 14.115069 / 10.191392 (3.923677) | 0.169859 / 0.680424 (-0.510564) | 0.018538 / 0.534201 (-0.515663) | 0.398456 / 0.579283 (-0.180827) | 0.410111 / 0.434364 (-0.024253) | 0.483198 / 0.540337 (-0.057139) | 0.639283 / 1.386936 (-0.747653) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#01e2194f2aab6aa98686a2069ee5201b69a53c14 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007731 / 0.011353 (-0.003622) | 0.004064 / 0.011008 (-0.006944) | 0.095261 / 0.038508 (0.056753) | 0.081594 / 0.023109 (0.058485) | 0.390413 / 0.275898 (0.114515) | 0.415542 / 0.323480 (0.092063) | 0.006031 / 0.007986 (-0.001954) | 0.003817 / 0.004328 (-0.000512) | 0.066381 / 0.004250 (0.062131) | 0.058262 / 0.037052 (0.021210) | 0.383626 / 0.258489 (0.125137) | 0.443237 / 0.293841 (0.149396) | 0.034358 / 0.128546 (-0.094188) | 0.010002 / 0.075646 (-0.065644) | 0.317472 / 0.419271 (-0.101800) | 0.057428 / 0.043533 (0.013895) | 0.393929 / 0.255139 (0.138790) | 0.444572 / 0.283200 (0.161373) | 0.026295 / 0.141683 (-0.115388) | 1.603639 / 1.452155 (0.151484) | 1.707750 / 1.492716 (0.215034) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.222171 / 0.018006 (0.204165) | 0.491762 / 0.000490 (0.491272) | 0.003389 / 0.000200 (0.003189) | 0.000090 / 0.000054 (0.000036) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029420 / 0.037411 (-0.007991) | 0.086201 / 0.014526 (0.071676) | 0.100150 / 0.176557 (-0.076406) | 0.162338 / 0.737135 (-0.574797) | 0.099349 / 0.296338 (-0.196989) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.445976 / 0.215209 (0.230767) | 4.460197 / 2.077655 (2.382542) | 2.211767 / 1.504120 (0.707647) | 1.988740 / 1.541195 (0.447545) | 2.052289 / 1.468490 (0.583799) | 0.570321 / 4.584777 (-4.014456) | 4.148777 / 3.745712 (0.403065) | 3.750977 / 5.269862 (-1.518885) | 2.309443 / 4.565676 (-2.256234) | 0.064552 / 0.424275 (-0.359724) | 0.008167 / 0.007607 (0.000560) | 0.523283 / 0.226044 (0.297238) | 5.349347 / 2.268929 (3.080419) | 2.710292 / 55.444624 (-52.734332) | 2.344252 / 6.876477 (-4.532225) | 2.549903 / 2.142072 (0.407831) | 0.665942 / 4.805227 (-4.139285) | 0.154108 / 6.500664 (-6.346556) | 0.070181 / 0.075469 (-0.005289) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.455733 / 1.841788 (-0.386054) | 21.846958 / 8.074308 (13.772650) | 15.133865 / 10.191392 (4.942473) | 0.199009 / 0.680424 (-0.481415) | 0.021299 / 0.534201 (-0.512902) | 0.421555 / 0.579283 (-0.157729) | 0.437639 / 0.434364 (0.003275) | 0.498568 / 0.540337 (-0.041769) | 0.719649 / 1.386936 (-0.667287) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007858 / 0.011353 (-0.003495) | 0.004629 / 0.011008 (-0.006380) | 0.075701 / 0.038508 (0.037193) | 0.084425 / 0.023109 (0.061316) | 0.436650 / 0.275898 (0.160752) | 0.466046 / 0.323480 (0.142566) | 0.006042 / 0.007986 (-0.001944) | 0.003834 / 0.004328 (-0.000495) | 0.074729 / 0.004250 (0.070478) | 0.065983 / 0.037052 (0.028931) | 0.447239 / 0.258489 (0.188750) | 0.466728 / 0.293841 (0.172887) | 0.035814 / 0.128546 (-0.092733) | 0.009919 / 0.075646 (-0.065727) | 0.081151 / 0.419271 (-0.338120) | 0.057256 / 0.043533 (0.013723) | 0.435609 / 0.255139 (0.180470) | 0.448901 / 0.283200 (0.165701) | 0.026325 / 0.141683 (-0.115357) | 1.745658 / 1.452155 (0.293503) | 1.804137 / 1.492716 (0.311421) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.302551 / 0.018006 (0.284544) | 0.498438 / 0.000490 (0.497948) | 0.038562 / 0.000200 (0.038362) | 0.000411 / 0.000054 (0.000356) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.035573 / 0.037411 (-0.001839) | 0.104957 / 0.014526 (0.090431) | 0.117208 / 0.176557 (-0.059349) | 0.178935 / 0.737135 (-0.558200) | 0.124577 / 0.296338 (-0.171761) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.467076 / 0.215209 (0.251867) | 4.698852 / 2.077655 (2.621197) | 2.453389 / 1.504120 (0.949269) | 2.257378 / 1.541195 (0.716183) | 2.338615 / 1.468490 (0.870125) | 0.542379 / 4.584777 (-4.042398) | 4.066895 / 3.745712 (0.321183) | 3.689540 / 5.269862 (-1.580321) | 2.268997 / 4.565676 (-2.296679) | 0.064754 / 0.424275 (-0.359521) | 0.008866 / 0.007607 (0.001259) | 0.546732 / 0.226044 (0.320687) | 5.487765 / 2.268929 (3.218836) | 2.974126 / 55.444624 (-52.470498) | 2.585492 / 6.876477 (-4.290985) | 2.754417 / 2.142072 (0.612345) | 0.652045 / 4.805227 (-4.153183) | 0.145597 / 6.500664 (-6.355067) | 0.065415 / 0.075469 (-0.010054) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.553970 / 1.841788 (-0.287818) | 22.300954 / 8.074308 (14.226646) | 15.640990 / 10.191392 (5.449598) | 0.170903 / 0.680424 (-0.509521) | 0.021750 / 0.534201 (-0.512451) | 0.455316 / 0.579283 (-0.123967) | 0.455051 / 0.434364 (0.020687) | 0.536174 / 0.540337 (-0.004164) | 0.735930 / 1.386936 (-0.651006) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#f68139846c26b43631bd235114854f4bf6cb9954 \"CML watermark\")\n" ]

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[ "Possibly related:\r\n- https://github.com/pytorch/pytorch/issues/22462" ]

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[ "The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6103). All of your documentation changes will be reflected on that endpoint.", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006528 / 0.011353 (-0.004825) | 0.003909 / 0.011008 (-0.007099) | 0.083954 / 0.038508 (0.045446) | 0.070513 / 0.023109 (0.047404) | 0.344362 / 0.275898 (0.068464) | 0.370278 / 0.323480 (0.046798) | 0.005395 / 0.007986 (-0.002591) | 0.003323 / 0.004328 (-0.001005) | 0.064538 / 0.004250 (0.060288) | 0.055616 / 0.037052 (0.018564) | 0.353590 / 0.258489 (0.095101) | 0.382159 / 0.293841 (0.088318) | 0.031133 / 0.128546 (-0.097414) | 0.008429 / 0.075646 (-0.067217) | 0.288665 / 0.419271 (-0.130606) | 0.052626 / 0.043533 (0.009093) | 0.347676 / 0.255139 (0.092537) | 0.363726 / 0.283200 (0.080526) | 0.021956 / 0.141683 (-0.119727) | 1.506091 / 1.452155 (0.053936) | 1.563940 / 1.492716 (0.071223) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.207658 / 0.018006 (0.189652) | 0.473411 / 0.000490 (0.472922) | 0.005437 / 0.000200 (0.005237) | 0.000087 / 0.000054 (0.000033) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.027769 / 0.037411 (-0.009643) | 0.082566 / 0.014526 (0.068040) | 0.092700 / 0.176557 (-0.083857) | 0.152589 / 0.737135 (-0.584546) | 0.093772 / 0.296338 (-0.202566) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.401072 / 0.215209 (0.185863) | 3.997922 / 2.077655 (1.920267) | 2.028223 / 1.504120 (0.524103) | 1.845229 / 1.541195 (0.304035) | 1.883980 / 1.468490 (0.415489) | 0.485112 / 4.584777 (-4.099665) | 3.657048 / 3.745712 (-0.088664) | 4.998475 / 5.269862 (-0.271386) | 3.007417 / 4.565676 (-1.558259) | 0.057003 / 0.424275 (-0.367272) | 0.007270 / 0.007607 (-0.000338) | 0.482220 / 0.226044 (0.256176) | 4.817560 / 2.268929 (2.548631) | 2.484285 / 55.444624 (-52.960340) | 2.163327 / 6.876477 (-4.713149) | 2.326412 / 2.142072 (0.184339) | 0.600349 / 4.805227 (-4.204878) | 0.134245 / 6.500664 (-6.366419) | 0.060705 / 0.075469 (-0.014764) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.281440 / 1.841788 (-0.560347) | 19.165591 / 8.074308 (11.091283) | 14.007728 / 10.191392 (3.816336) | 0.168367 / 0.680424 (-0.512057) | 0.018149 / 0.534201 (-0.516052) | 0.391688 / 0.579283 (-0.187595) | 0.414528 / 0.434364 (-0.019836) | 0.456964 / 0.540337 (-0.083373) | 0.613807 / 1.386936 (-0.773129) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006502 / 0.011353 (-0.004851) | 0.003956 / 0.011008 (-0.007052) | 0.064297 / 0.038508 (0.025789) | 0.073430 / 0.023109 (0.050321) | 0.364113 / 0.275898 (0.088215) | 0.389021 / 0.323480 (0.065541) | 0.005375 / 0.007986 (-0.002611) | 0.003363 / 0.004328 (-0.000966) | 0.064404 / 0.004250 (0.060153) | 0.056664 / 0.037052 (0.019612) | 0.365504 / 0.258489 (0.107015) | 0.398477 / 0.293841 (0.104636) | 0.031739 / 0.128546 (-0.096807) | 0.008663 / 0.075646 (-0.066984) | 0.070757 / 0.419271 (-0.348515) | 0.051014 / 0.043533 (0.007481) | 0.368287 / 0.255139 (0.113148) | 0.382941 / 0.283200 (0.099742) | 0.024642 / 0.141683 (-0.117041) | 1.516721 / 1.452155 (0.064567) | 1.557625 / 1.492716 (0.064908) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.208248 / 0.018006 (0.190242) | 0.443560 / 0.000490 (0.443070) | 0.004004 / 0.000200 (0.003805) | 0.000085 / 0.000054 (0.000031) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031116 / 0.037411 (-0.006295) | 0.086814 / 0.014526 (0.072288) | 0.099111 / 0.176557 (-0.077445) | 0.155032 / 0.737135 (-0.582104) | 0.098938 / 0.296338 (-0.197401) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.413080 / 0.215209 (0.197871) | 4.115546 / 2.077655 (2.037891) | 2.162073 / 1.504120 (0.657953) | 2.008107 / 1.541195 (0.466912) | 2.052317 / 1.468490 (0.583827) | 0.485158 / 4.584777 (-4.099619) | 3.617478 / 3.745712 (-0.128234) | 5.030564 / 5.269862 (-0.239298) | 2.787812 / 4.565676 (-1.777865) | 0.057466 / 0.424275 (-0.366809) | 0.007656 / 0.007607 (0.000049) | 0.490037 / 0.226044 (0.263993) | 4.887896 / 2.268929 (2.618968) | 2.639644 / 55.444624 (-52.804981) | 2.258051 / 6.876477 (-4.618426) | 2.417573 / 2.142072 (0.275500) | 0.604473 / 4.805227 (-4.200754) | 0.134770 / 6.500664 (-6.365894) | 0.061709 / 0.075469 (-0.013760) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.342500 / 1.841788 (-0.499288) | 19.354990 / 8.074308 (11.280682) | 14.161975 / 10.191392 (3.970583) | 0.157084 / 0.680424 (-0.523339) | 0.018227 / 0.534201 (-0.515974) | 0.391819 / 0.579283 (-0.187464) | 0.399157 / 0.434364 (-0.035207) | 0.460582 / 0.540337 (-0.079756) | 0.612183 / 1.386936 (-0.774753) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#b20f6a82410dd47e89585bb932616a22e0eaf2e6 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009318 / 0.011353 (-0.002035) | 0.005515 / 0.011008 (-0.005493) | 0.108532 / 0.038508 (0.070024) | 0.103583 / 0.023109 (0.080473) | 0.419249 / 0.275898 (0.143351) | 0.453573 / 0.323480 (0.130093) | 0.006601 / 0.007986 (-0.001384) | 0.005297 / 0.004328 (0.000968) | 0.082737 / 0.004250 (0.078487) | 0.064708 / 0.037052 (0.027656) | 0.425679 / 0.258489 (0.167190) | 0.462028 / 0.293841 (0.168187) | 0.048104 / 0.128546 (-0.080442) | 0.014069 / 0.075646 (-0.061577) | 0.377780 / 0.419271 (-0.041491) | 0.067510 / 0.043533 (0.023977) | 0.422421 / 0.255139 (0.167282) | 0.447127 / 0.283200 (0.163927) | 0.037745 / 0.141683 (-0.103938) | 1.855306 / 1.452155 (0.403152) | 1.943876 / 1.492716 (0.451160) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.280161 / 0.018006 (0.262155) | 0.598001 / 0.000490 (0.597512) | 0.001130 / 0.000200 (0.000930) | 0.000091 / 0.000054 (0.000036) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.036064 / 0.037411 (-0.001347) | 0.113256 / 0.014526 (0.098730) | 0.120598 / 0.176557 (-0.055959) | 0.191386 / 0.737135 (-0.545750) | 0.118125 / 0.296338 (-0.178214) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.616887 / 0.215209 (0.401678) | 6.085498 / 2.077655 (4.007844) | 2.639428 / 1.504120 (1.135308) | 2.215444 / 1.541195 (0.674249) | 2.311990 / 1.468490 (0.843500) | 0.820539 / 4.584777 (-3.764238) | 5.306010 / 3.745712 (1.560298) | 4.731726 / 5.269862 (-0.538136) | 3.053933 / 4.565676 (-1.511744) | 0.098862 / 0.424275 (-0.325413) | 0.009456 / 0.007607 (0.001849) | 0.725455 / 0.226044 (0.499411) | 7.367385 / 2.268929 (5.098457) | 3.464921 / 55.444624 (-51.979703) | 2.833868 / 6.876477 (-4.042608) | 3.033008 / 2.142072 (0.890935) | 1.036751 / 4.805227 (-3.768476) | 0.243646 / 6.500664 (-6.257018) | 0.081079 / 0.075469 (0.005610) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.584695 / 1.841788 (-0.257093) | 25.150355 / 8.074308 (17.076047) | 21.826622 / 10.191392 (11.635230) | 0.212502 / 0.680424 (-0.467921) | 0.029865 / 0.534201 (-0.504335) | 0.496814 / 0.579283 (-0.082470) | 0.611959 / 0.434364 (0.177595) | 0.550434 / 0.540337 (0.010097) | 0.800897 / 1.386936 (-0.586039) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009117 / 0.011353 (-0.002236) | 0.005236 / 0.011008 (-0.005772) | 0.082402 / 0.038508 (0.043894) | 0.090578 / 0.023109 (0.067468) | 0.487302 / 0.275898 (0.211404) | 0.523639 / 0.323480 (0.200159) | 0.006684 / 0.007986 (-0.001302) | 0.004306 / 0.004328 (-0.000023) | 0.083273 / 0.004250 (0.079023) | 0.068585 / 0.037052 (0.031532) | 0.487751 / 0.258489 (0.229262) | 0.538972 / 0.293841 (0.245131) | 0.048915 / 0.128546 (-0.079632) | 0.014312 / 0.075646 (-0.061335) | 0.091863 / 0.419271 (-0.327409) | 0.066114 / 0.043533 (0.022581) | 0.483552 / 0.255139 (0.228413) | 0.522250 / 0.283200 (0.239050) | 0.038533 / 0.141683 (-0.103150) | 1.803834 / 1.452155 (0.351680) | 1.891927 / 1.492716 (0.399211) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.336662 / 0.018006 (0.318656) | 0.611408 / 0.000490 (0.610918) | 0.014310 / 0.000200 (0.014110) | 0.000152 / 0.000054 (0.000097) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.034755 / 0.037411 (-0.002656) | 0.101008 / 0.014526 (0.086483) | 0.124530 / 0.176557 (-0.052026) | 0.179844 / 0.737135 (-0.557292) | 0.125027 / 0.296338 (-0.171312) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.618341 / 0.215209 (0.403132) | 6.146848 / 2.077655 (4.069193) | 2.893305 / 1.504120 (1.389185) | 2.608722 / 1.541195 (1.067528) | 2.671276 / 1.468490 (1.202786) | 0.860096 / 4.584777 (-3.724681) | 5.440671 / 3.745712 (1.694959) | 4.776958 / 5.269862 (-0.492903) | 3.098300 / 4.565676 (-1.467376) | 0.098664 / 0.424275 (-0.325611) | 0.009270 / 0.007607 (0.001663) | 0.712780 / 0.226044 (0.486735) | 7.199721 / 2.268929 (4.930793) | 3.620723 / 55.444624 (-51.823902) | 3.052218 / 6.876477 (-3.824259) | 3.321093 / 2.142072 (1.179021) | 1.070992 / 4.805227 (-3.734235) | 0.224091 / 6.500664 (-6.276573) | 0.083395 / 0.075469 (0.007926) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.716867 / 1.841788 (-0.124921) | 25.534617 / 8.074308 (17.460309) | 25.221014 / 10.191392 (15.029621) | 0.248098 / 0.680424 (-0.432326) | 0.029659 / 0.534201 (-0.504542) | 0.492929 / 0.579283 (-0.086355) | 0.618253 / 0.434364 (0.183889) | 0.577108 / 0.540337 (0.036771) | 0.803188 / 1.386936 (-0.583748) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#584db360eed9155e173b199ba5fc037562b7b862 \"CML watermark\")\n" ]

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[ "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006517 / 0.011353 (-0.004836) | 0.004217 / 0.011008 (-0.006792) | 0.083162 / 0.038508 (0.044654) | 0.074476 / 0.023109 (0.051367) | 0.321193 / 0.275898 (0.045295) | 0.358348 / 0.323480 (0.034868) | 0.005531 / 0.007986 (-0.002455) | 0.003621 / 0.004328 (-0.000707) | 0.063819 / 0.004250 (0.059568) | 0.056524 / 0.037052 (0.019471) | 0.322145 / 0.258489 (0.063656) | 0.371415 / 0.293841 (0.077574) | 0.030612 / 0.128546 (-0.097934) | 0.008907 / 0.075646 (-0.066739) | 0.289451 / 0.419271 (-0.129821) | 0.051959 / 0.043533 (0.008426) | 0.317729 / 0.255139 (0.062590) | 0.339750 / 0.283200 (0.056550) | 0.022430 / 0.141683 (-0.119253) | 1.487661 / 1.452155 (0.035506) | 1.554916 / 1.492716 (0.062199) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.296673 / 0.018006 (0.278667) | 0.599183 / 0.000490 (0.598694) | 0.002524 / 0.000200 (0.002324) | 0.000076 / 0.000054 (0.000021) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.027898 / 0.037411 (-0.009514) | 0.080870 / 0.014526 (0.066344) | 0.094894 / 0.176557 (-0.081662) | 0.152350 / 0.737135 (-0.584785) | 0.095765 / 0.296338 (-0.200573) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.415442 / 0.215209 (0.200233) | 4.161155 / 2.077655 (2.083500) | 2.117061 / 1.504120 (0.612941) | 1.937846 / 1.541195 (0.396651) | 1.979635 / 1.468490 (0.511145) | 0.488381 / 4.584777 (-4.096396) | 3.509836 / 3.745712 (-0.235876) | 3.833074 / 5.269862 (-1.436788) | 2.307536 / 4.565676 (-2.258141) | 0.057059 / 0.424275 (-0.367216) | 0.007366 / 0.007607 (-0.000241) | 0.487752 / 0.226044 (0.261708) | 4.869406 / 2.268929 (2.600478) | 2.594775 / 55.444624 (-52.849849) | 2.191712 / 6.876477 (-4.684765) | 2.413220 / 2.142072 (0.271147) | 0.584513 / 4.805227 (-4.220714) | 0.132162 / 6.500664 (-6.368502) | 0.061059 / 0.075469 (-0.014410) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.245178 / 1.841788 (-0.596610) | 20.624563 / 8.074308 (12.550255) | 14.675545 / 10.191392 (4.484153) | 0.165838 / 0.680424 (-0.514586) | 0.018700 / 0.534201 (-0.515501) | 0.392475 / 0.579283 (-0.186808) | 0.399884 / 0.434364 (-0.034480) | 0.457478 / 0.540337 (-0.082859) | 0.624553 / 1.386936 (-0.762383) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006716 / 0.011353 (-0.004637) | 0.004308 / 0.011008 (-0.006700) | 0.064495 / 0.038508 (0.025987) | 0.083194 / 0.023109 (0.060085) | 0.371994 / 0.275898 (0.096096) | 0.433045 / 0.323480 (0.109566) | 0.005535 / 0.007986 (-0.002450) | 0.003469 / 0.004328 (-0.000859) | 0.064342 / 0.004250 (0.060092) | 0.059362 / 0.037052 (0.022309) | 0.393819 / 0.258489 (0.135330) | 0.442591 / 0.293841 (0.148750) | 0.031594 / 0.128546 (-0.096952) | 0.008943 / 0.075646 (-0.066703) | 0.070689 / 0.419271 (-0.348582) | 0.049219 / 0.043533 (0.005686) | 0.361568 / 0.255139 (0.106429) | 0.417085 / 0.283200 (0.133886) | 0.025112 / 0.141683 (-0.116571) | 1.497204 / 1.452155 (0.045049) | 1.552781 / 1.492716 (0.060064) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.325254 / 0.018006 (0.307248) | 0.528399 / 0.000490 (0.527909) | 0.007429 / 0.000200 (0.007229) | 0.000101 / 0.000054 (0.000047) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029908 / 0.037411 (-0.007504) | 0.087114 / 0.014526 (0.072588) | 0.103366 / 0.176557 (-0.073191) | 0.155145 / 0.737135 (-0.581990) | 0.103458 / 0.296338 (-0.192880) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.409432 / 0.215209 (0.194223) | 4.093327 / 2.077655 (2.015673) | 2.154115 / 1.504120 (0.649995) | 1.953492 / 1.541195 (0.412297) | 2.021532 / 1.468490 (0.553042) | 0.478928 / 4.584777 (-4.105849) | 3.515287 / 3.745712 (-0.230426) | 4.976239 / 5.269862 (-0.293623) | 2.832803 / 4.565676 (-1.732873) | 0.057239 / 0.424275 (-0.367036) | 0.007718 / 0.007607 (0.000111) | 0.484102 / 0.226044 (0.258057) | 4.833020 / 2.268929 (2.564092) | 2.564550 / 55.444624 (-52.880074) | 2.268969 / 6.876477 (-4.607508) | 2.513308 / 2.142072 (0.371235) | 0.582822 / 4.805227 (-4.222406) | 0.133989 / 6.500664 (-6.366675) | 0.062078 / 0.075469 (-0.013391) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.393766 / 1.841788 (-0.448021) | 20.224546 / 8.074308 (12.150238) | 14.359438 / 10.191392 (4.168046) | 0.166358 / 0.680424 (-0.514066) | 0.018840 / 0.534201 (-0.515361) | 0.393206 / 0.579283 (-0.186077) | 0.404220 / 0.434364 (-0.030144) | 0.462346 / 0.540337 (-0.077992) | 0.603078 / 1.386936 (-0.783858) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#53e8007baeff133aaad8cbb366196be18a5e57fd \"CML watermark\")\n", "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006835 / 0.011353 (-0.004518) | 0.004530 / 0.011008 (-0.006478) | 0.087506 / 0.038508 (0.048997) | 0.088289 / 0.023109 (0.065180) | 0.351575 / 0.275898 (0.075677) | 0.391873 / 0.323480 (0.068393) | 0.005627 / 0.007986 (-0.002359) | 0.003735 / 0.004328 (-0.000594) | 0.065747 / 0.004250 (0.061497) | 0.058779 / 0.037052 (0.021726) | 0.358076 / 0.258489 (0.099587) | 0.408466 / 0.293841 (0.114626) | 0.031369 / 0.128546 (-0.097178) | 0.008807 / 0.075646 (-0.066839) | 0.293253 / 0.419271 (-0.126019) | 0.052950 / 0.043533 (0.009417) | 0.350411 / 0.255139 (0.095272) | 0.384827 / 0.283200 (0.101627) | 0.026219 / 0.141683 (-0.115464) | 1.464290 / 1.452155 (0.012136) | 1.549688 / 1.492716 (0.056972) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.270354 / 0.018006 (0.252348) | 0.593436 / 0.000490 (0.592946) | 0.003872 / 0.000200 (0.003673) | 0.000091 / 0.000054 (0.000036) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031625 / 0.037411 (-0.005787) | 0.092599 / 0.014526 (0.078073) | 0.104619 / 0.176557 (-0.071938) | 0.163183 / 0.737135 (-0.573952) | 0.103245 / 0.296338 (-0.193094) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.390213 / 0.215209 (0.175004) | 3.894519 / 2.077655 (1.816864) | 1.905739 / 1.504120 (0.401619) | 1.728873 / 1.541195 (0.187678) | 1.838692 / 1.468490 (0.370202) | 0.484730 / 4.584777 (-4.100047) | 3.706749 / 3.745712 (-0.038963) | 5.572311 / 5.269862 (0.302449) | 3.389949 / 4.565676 (-1.175727) | 0.057315 / 0.424275 (-0.366960) | 0.007475 / 0.007607 (-0.000132) | 0.464690 / 0.226044 (0.238645) | 4.622242 / 2.268929 (2.353314) | 2.380957 / 55.444624 (-53.063667) | 2.038225 / 6.876477 (-4.838251) | 2.358881 / 2.142072 (0.216809) | 0.606358 / 4.805227 (-4.198869) | 0.133584 / 6.500664 (-6.367080) | 0.061894 / 0.075469 (-0.013575) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.259575 / 1.841788 (-0.582213) | 20.915216 / 8.074308 (12.840908) | 14.971952 / 10.191392 (4.780560) | 0.160206 / 0.680424 (-0.520218) | 0.018675 / 0.534201 (-0.515526) | 0.396821 / 0.579283 (-0.182462) | 0.430982 / 0.434364 (-0.003382) | 0.452895 / 0.540337 (-0.087443) | 0.647869 / 1.386936 (-0.739067) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007194 / 0.011353 (-0.004158) | 0.004340 / 0.011008 (-0.006669) | 0.065125 / 0.038508 (0.026617) | 0.096243 / 0.023109 (0.073134) | 0.374361 / 0.275898 (0.098463) | 0.411863 / 0.323480 (0.088383) | 0.005813 / 0.007986 (-0.002172) | 0.003615 / 0.004328 (-0.000713) | 0.064953 / 0.004250 (0.060703) | 0.063171 / 0.037052 (0.026119) | 0.376238 / 0.258489 (0.117749) | 0.415826 / 0.293841 (0.121985) | 0.031926 / 0.128546 (-0.096620) | 0.008821 / 0.075646 (-0.066825) | 0.072150 / 0.419271 (-0.347122) | 0.049484 / 0.043533 (0.005951) | 0.369691 / 0.255139 (0.114552) | 0.390669 / 0.283200 (0.107470) | 0.025732 / 0.141683 (-0.115950) | 1.493833 / 1.452155 (0.041679) | 1.601786 / 1.492716 (0.109070) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.284279 / 0.018006 (0.266272) | 0.585909 / 0.000490 (0.585419) | 0.000411 / 0.000200 (0.000211) | 0.000057 / 0.000054 (0.000002) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.033642 / 0.037411 (-0.003769) | 0.095328 / 0.014526 (0.080802) | 0.105810 / 0.176557 (-0.070746) | 0.159779 / 0.737135 (-0.577357) | 0.108938 / 0.296338 (-0.187400) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.408112 / 0.215209 (0.192902) | 4.067035 / 2.077655 (1.989380) | 2.114504 / 1.504120 (0.610384) | 1.944027 / 1.541195 (0.402832) | 2.066117 / 1.468490 (0.597627) | 0.486441 / 4.584777 (-4.098336) | 3.622659 / 3.745712 (-0.123053) | 3.399310 / 5.269862 (-1.870552) | 2.183151 / 4.565676 (-2.382525) | 0.057490 / 0.424275 (-0.366785) | 0.007955 / 0.007607 (0.000347) | 0.490221 / 0.226044 (0.264177) | 4.887301 / 2.268929 (2.618373) | 2.679806 / 55.444624 (-52.764819) | 2.258992 / 6.876477 (-4.617484) | 2.592493 / 2.142072 (0.450420) | 0.606515 / 4.805227 (-4.198712) | 0.135645 / 6.500664 (-6.365019) | 0.063956 / 0.075469 (-0.011513) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.331304 / 1.841788 (-0.510483) | 21.458611 / 8.074308 (13.384303) | 14.898964 / 10.191392 (4.707572) | 0.172110 / 0.680424 (-0.508314) | 0.018791 / 0.534201 (-0.515409) | 0.395944 / 0.579283 (-0.183339) | 0.424526 / 0.434364 (-0.009838) | 0.462517 / 0.540337 (-0.077821) | 0.610139 / 1.386936 (-0.776797) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#09492ba523518289a84175ddb7ab3bc555e742ee \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005957 / 0.011353 (-0.005396) | 0.003581 / 0.011008 (-0.007427) | 0.079624 / 0.038508 (0.041116) | 0.058004 / 0.023109 (0.034895) | 0.309345 / 0.275898 (0.033447) | 0.346653 / 0.323480 (0.023173) | 0.005420 / 0.007986 (-0.002566) | 0.002906 / 0.004328 (-0.001423) | 0.061970 / 0.004250 (0.057720) | 0.047627 / 0.037052 (0.010575) | 0.314096 / 0.258489 (0.055607) | 0.361368 / 0.293841 (0.067527) | 0.027211 / 0.128546 (-0.101335) | 0.007853 / 0.075646 (-0.067793) | 0.260202 / 0.419271 (-0.159070) | 0.045308 / 0.043533 (0.001775) | 0.312150 / 0.255139 (0.057011) | 0.341085 / 0.283200 (0.057886) | 0.021302 / 0.141683 (-0.120381) | 1.430315 / 1.452155 (-0.021840) | 1.608989 / 1.492716 (0.116273) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.185289 / 0.018006 (0.167283) | 0.423318 / 0.000490 (0.422828) | 0.005741 / 0.000200 (0.005541) | 0.000070 / 0.000054 (0.000015) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023777 / 0.037411 (-0.013634) | 0.071937 / 0.014526 (0.057412) | 0.079406 / 0.176557 (-0.097151) | 0.143815 / 0.737135 (-0.593320) | 0.081648 / 0.296338 (-0.214690) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.431514 / 0.215209 (0.216305) | 4.314471 / 2.077655 (2.236817) | 2.305167 / 1.504120 (0.801047) | 2.137894 / 1.541195 (0.596699) | 2.161034 / 1.468490 (0.692544) | 0.511701 / 4.584777 (-4.073076) | 3.098213 / 3.745712 (-0.647499) | 4.086837 / 5.269862 (-1.183024) | 2.517184 / 4.565676 (-2.048492) | 0.058272 / 0.424275 (-0.366003) | 0.006415 / 0.007607 (-0.001192) | 0.504792 / 0.226044 (0.278747) | 5.046758 / 2.268929 (2.777829) | 2.752049 / 55.444624 (-52.692576) | 2.407707 / 6.876477 (-4.468770) | 2.532162 / 2.142072 (0.390090) | 0.597562 / 4.805227 (-4.207666) | 0.125935 / 6.500664 (-6.374729) | 0.060837 / 0.075469 (-0.014632) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.257048 / 1.841788 (-0.584740) | 17.877849 / 8.074308 (9.803541) | 13.904805 / 10.191392 (3.713413) | 0.131647 / 0.680424 (-0.548776) | 0.016975 / 0.534201 (-0.517226) | 0.329651 / 0.579283 (-0.249633) | 0.354358 / 0.434364 (-0.080006) | 0.377545 / 0.540337 (-0.162792) | 0.545593 / 1.386936 (-0.841343) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005839 / 0.011353 (-0.005514) | 0.003580 / 0.011008 (-0.007428) | 0.062204 / 0.038508 (0.023696) | 0.057943 / 0.023109 (0.034834) | 0.400165 / 0.275898 (0.124267) | 0.427911 / 0.323480 (0.104431) | 0.004412 / 0.007986 (-0.003574) | 0.002794 / 0.004328 (-0.001534) | 0.062933 / 0.004250 (0.058683) | 0.046243 / 0.037052 (0.009191) | 0.413640 / 0.258489 (0.155151) | 0.418592 / 0.293841 (0.124751) | 0.027020 / 0.128546 (-0.101526) | 0.007927 / 0.075646 (-0.067720) | 0.067581 / 0.419271 (-0.351691) | 0.041927 / 0.043533 (-0.001606) | 0.381863 / 0.255139 (0.126724) | 0.415711 / 0.283200 (0.132511) | 0.019827 / 0.141683 (-0.121856) | 1.464049 / 1.452155 (0.011894) | 1.528387 / 1.492716 (0.035671) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.224999 / 0.018006 (0.206993) | 0.419167 / 0.000490 (0.418678) | 0.000363 / 0.000200 (0.000163) | 0.000054 / 0.000054 (-0.000001) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.024827 / 0.037411 (-0.012585) | 0.077134 / 0.014526 (0.062608) | 0.085142 / 0.176557 (-0.091414) | 0.137400 / 0.737135 (-0.599735) | 0.086434 / 0.296338 (-0.209905) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.452716 / 0.215209 (0.237507) | 4.530610 / 2.077655 (2.452955) | 2.467309 / 1.504120 (0.963189) | 2.300441 / 1.541195 (0.759246) | 2.323475 / 1.468490 (0.854985) | 0.501847 / 4.584777 (-4.082930) | 3.079432 / 3.745712 (-0.666280) | 2.793107 / 5.269862 (-2.476755) | 1.835010 / 4.565676 (-2.730666) | 0.057698 / 0.424275 (-0.366577) | 0.006756 / 0.007607 (-0.000851) | 0.529062 / 0.226044 (0.303017) | 5.287822 / 2.268929 (3.018894) | 2.908411 / 55.444624 (-52.536214) | 2.571627 / 6.876477 (-4.304850) | 2.691188 / 2.142072 (0.549116) | 0.592289 / 4.805227 (-4.212938) | 0.126091 / 6.500664 (-6.374573) | 0.062312 / 0.075469 (-0.013157) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.328854 / 1.841788 (-0.512933) | 18.185628 / 8.074308 (10.111320) | 13.858781 / 10.191392 (3.667389) | 0.142421 / 0.680424 (-0.538003) | 0.016535 / 0.534201 (-0.517666) | 0.330839 / 0.579283 (-0.248444) | 0.346559 / 0.434364 (-0.087805) | 0.389153 / 0.540337 (-0.151185) | 0.516897 / 1.386936 (-0.870039) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#09492ba523518289a84175ddb7ab3bc555e742ee \"CML watermark\")\n" ]

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[ "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006543 / 0.011353 (-0.004810) | 0.003894 / 0.011008 (-0.007115) | 0.084742 / 0.038508 (0.046234) | 0.072942 / 0.023109 (0.049833) | 0.310722 / 0.275898 (0.034824) | 0.346806 / 0.323480 (0.023326) | 0.005373 / 0.007986 (-0.002613) | 0.003270 / 0.004328 (-0.001059) | 0.064379 / 0.004250 (0.060128) | 0.054876 / 0.037052 (0.017824) | 0.316794 / 0.258489 (0.058305) | 0.350353 / 0.293841 (0.056512) | 0.030683 / 0.128546 (-0.097863) | 0.008275 / 0.075646 (-0.067371) | 0.288747 / 0.419271 (-0.130525) | 0.051892 / 0.043533 (0.008359) | 0.315060 / 0.255139 (0.059921) | 0.331664 / 0.283200 (0.048464) | 0.023334 / 0.141683 (-0.118349) | 1.499734 / 1.452155 (0.047579) | 1.542006 / 1.492716 (0.049290) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.210488 / 0.018006 (0.192482) | 0.462187 / 0.000490 (0.461697) | 0.001280 / 0.000200 (0.001080) | 0.000076 / 0.000054 (0.000021) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.027812 / 0.037411 (-0.009599) | 0.082492 / 0.014526 (0.067966) | 0.096504 / 0.176557 (-0.080053) | 0.158164 / 0.737135 (-0.578972) | 0.096678 / 0.296338 (-0.199661) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.403317 / 0.215209 (0.188108) | 4.008367 / 2.077655 (1.930713) | 2.033067 / 1.504120 (0.528947) | 1.869484 / 1.541195 (0.328290) | 1.947450 / 1.468490 (0.478960) | 0.494048 / 4.584777 (-4.090729) | 3.631673 / 3.745712 (-0.114039) | 5.322167 / 5.269862 (0.052306) | 3.125570 / 4.565676 (-1.440107) | 0.057341 / 0.424275 (-0.366934) | 0.007318 / 0.007607 (-0.000289) | 0.483990 / 0.226044 (0.257945) | 4.830573 / 2.268929 (2.561645) | 2.543267 / 55.444624 (-52.901358) | 2.217890 / 6.876477 (-4.658587) | 2.435111 / 2.142072 (0.293038) | 0.597920 / 4.805227 (-4.207307) | 0.132690 / 6.500664 (-6.367974) | 0.060160 / 0.075469 (-0.015309) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.247656 / 1.841788 (-0.594131) | 19.436984 / 8.074308 (11.362675) | 14.504249 / 10.191392 (4.312857) | 0.167444 / 0.680424 (-0.512980) | 0.018214 / 0.534201 (-0.515987) | 0.394790 / 0.579283 (-0.184493) | 0.413770 / 0.434364 (-0.020594) | 0.474290 / 0.540337 (-0.066048) | 0.646782 / 1.386936 (-0.740154) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006575 / 0.011353 (-0.004778) | 0.003924 / 0.011008 (-0.007084) | 0.064402 / 0.038508 (0.025893) | 0.072569 / 0.023109 (0.049460) | 0.361981 / 0.275898 (0.086083) | 0.398660 / 0.323480 (0.075180) | 0.005380 / 0.007986 (-0.002605) | 0.003355 / 0.004328 (-0.000974) | 0.065173 / 0.004250 (0.060923) | 0.057120 / 0.037052 (0.020067) | 0.366347 / 0.258489 (0.107858) | 0.402723 / 0.293841 (0.108882) | 0.031258 / 0.128546 (-0.097288) | 0.008499 / 0.075646 (-0.067147) | 0.070558 / 0.419271 (-0.348714) | 0.050089 / 0.043533 (0.006556) | 0.361280 / 0.255139 (0.106141) | 0.384497 / 0.283200 (0.101297) | 0.024789 / 0.141683 (-0.116893) | 1.492577 / 1.452155 (0.040422) | 1.572242 / 1.492716 (0.079525) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.228054 / 0.018006 (0.210048) | 0.448317 / 0.000490 (0.447828) | 0.000368 / 0.000200 (0.000168) | 0.000056 / 0.000054 (0.000001) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030575 / 0.037411 (-0.006836) | 0.088604 / 0.014526 (0.074078) | 0.099317 / 0.176557 (-0.077239) | 0.152455 / 0.737135 (-0.584680) | 0.100444 / 0.296338 (-0.195894) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.411876 / 0.215209 (0.196667) | 4.108187 / 2.077655 (2.030532) | 2.096371 / 1.504120 (0.592251) | 1.923532 / 1.541195 (0.382337) | 1.998345 / 1.468490 (0.529855) | 0.483853 / 4.584777 (-4.100924) | 3.622433 / 3.745712 (-0.123279) | 3.254430 / 5.269862 (-2.015431) | 2.044342 / 4.565676 (-2.521334) | 0.056756 / 0.424275 (-0.367519) | 0.007720 / 0.007607 (0.000113) | 0.487656 / 0.226044 (0.261612) | 4.882024 / 2.268929 (2.613096) | 2.585008 / 55.444624 (-52.859616) | 2.229251 / 6.876477 (-4.647225) | 2.408318 / 2.142072 (0.266246) | 0.617537 / 4.805227 (-4.187691) | 0.132102 / 6.500664 (-6.368562) | 0.061694 / 0.075469 (-0.013775) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.362077 / 1.841788 (-0.479711) | 19.750714 / 8.074308 (11.676406) | 14.545299 / 10.191392 (4.353907) | 0.168666 / 0.680424 (-0.511758) | 0.018606 / 0.534201 (-0.515595) | 0.394760 / 0.579283 (-0.184523) | 0.410030 / 0.434364 (-0.024334) | 0.464742 / 0.540337 (-0.075596) | 0.610881 / 1.386936 (-0.776055) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#53e8007baeff133aaad8cbb366196be18a5e57fd \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005836 / 0.011353 (-0.005517) | 0.003493 / 0.011008 (-0.007515) | 0.079877 / 0.038508 (0.041369) | 0.057299 / 0.023109 (0.034190) | 0.332945 / 0.275898 (0.057047) | 0.386615 / 0.323480 (0.063135) | 0.004437 / 0.007986 (-0.003548) | 0.002758 / 0.004328 (-0.001571) | 0.062668 / 0.004250 (0.058418) | 0.046135 / 0.037052 (0.009083) | 0.346160 / 0.258489 (0.087671) | 0.416720 / 0.293841 (0.122879) | 0.026678 / 0.128546 (-0.101868) | 0.007893 / 0.075646 (-0.067753) | 0.260427 / 0.419271 (-0.158845) | 0.044240 / 0.043533 (0.000707) | 0.328101 / 0.255139 (0.072963) | 0.380072 / 0.283200 (0.096872) | 0.020813 / 0.141683 (-0.120870) | 1.400202 / 1.452155 (-0.051952) | 1.475627 / 1.492716 (-0.017089) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.174479 / 0.018006 (0.156473) | 0.413810 / 0.000490 (0.413320) | 0.003059 / 0.000200 (0.002860) | 0.000212 / 0.000054 (0.000157) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023422 / 0.037411 (-0.013990) | 0.071519 / 0.014526 (0.056993) | 0.080555 / 0.176557 (-0.096001) | 0.143825 / 0.737135 (-0.593311) | 0.081182 / 0.296338 (-0.215157) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.406858 / 0.215209 (0.191648) | 4.161475 / 2.077655 (2.083820) | 1.991800 / 1.504120 (0.487680) | 1.811224 / 1.541195 (0.270030) | 1.828809 / 1.468490 (0.360318) | 0.504882 / 4.584777 (-4.079895) | 2.985010 / 3.745712 (-0.760703) | 3.984856 / 5.269862 (-1.285006) | 2.477936 / 4.565676 (-2.087740) | 0.057553 / 0.424275 (-0.366722) | 0.006436 / 0.007607 (-0.001172) | 0.488061 / 0.226044 (0.262016) | 4.805501 / 2.268929 (2.536573) | 2.446508 / 55.444624 (-52.998116) | 2.051406 / 6.876477 (-4.825071) | 2.177696 / 2.142072 (0.035623) | 0.588021 / 4.805227 (-4.217207) | 0.125118 / 6.500664 (-6.375546) | 0.060885 / 0.075469 (-0.014584) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.197130 / 1.841788 (-0.644658) | 17.867450 / 8.074308 (9.793142) | 13.536895 / 10.191392 (3.345503) | 0.137603 / 0.680424 (-0.542821) | 0.016706 / 0.534201 (-0.517495) | 0.327642 / 0.579283 (-0.251641) | 0.347201 / 0.434364 (-0.087163) | 0.379570 / 0.540337 (-0.160768) | 0.517825 / 1.386936 (-0.869111) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005769 / 0.011353 (-0.005584) | 0.003414 / 0.011008 (-0.007594) | 0.063198 / 0.038508 (0.024690) | 0.056020 / 0.023109 (0.032911) | 0.393333 / 0.275898 (0.117435) | 0.421166 / 0.323480 (0.097686) | 0.004360 / 0.007986 (-0.003626) | 0.002860 / 0.004328 (-0.001469) | 0.062712 / 0.004250 (0.058461) | 0.045363 / 0.037052 (0.008311) | 0.413156 / 0.258489 (0.154667) | 0.422897 / 0.293841 (0.129056) | 0.027092 / 0.128546 (-0.101455) | 0.007960 / 0.075646 (-0.067687) | 0.068531 / 0.419271 (-0.350740) | 0.041402 / 0.043533 (-0.002131) | 0.377008 / 0.255139 (0.121869) | 0.409142 / 0.283200 (0.125942) | 0.019707 / 0.141683 (-0.121976) | 1.440556 / 1.452155 (-0.011599) | 1.487403 / 1.492716 (-0.005314) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.224355 / 0.018006 (0.206349) | 0.397855 / 0.000490 (0.397365) | 0.000363 / 0.000200 (0.000163) | 0.000056 / 0.000054 (0.000001) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025107 / 0.037411 (-0.012305) | 0.076404 / 0.014526 (0.061878) | 0.083194 / 0.176557 (-0.093362) | 0.135347 / 0.737135 (-0.601789) | 0.084786 / 0.296338 (-0.211553) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.433024 / 0.215209 (0.217815) | 4.323879 / 2.077655 (2.246224) | 2.263004 / 1.504120 (0.758884) | 2.072053 / 1.541195 (0.530858) | 2.113916 / 1.468490 (0.645426) | 0.502742 / 4.584777 (-4.082035) | 3.001716 / 3.745712 (-0.743996) | 2.777960 / 5.269862 (-2.491901) | 1.826514 / 4.565676 (-2.739162) | 0.057735 / 0.424275 (-0.366540) | 0.006671 / 0.007607 (-0.000937) | 0.503347 / 0.226044 (0.277303) | 5.037308 / 2.268929 (2.768380) | 2.679146 / 55.444624 (-52.765478) | 2.410899 / 6.876477 (-4.465577) | 2.467341 / 2.142072 (0.325268) | 0.589824 / 4.805227 (-4.215403) | 0.125529 / 6.500664 (-6.375135) | 0.061950 / 0.075469 (-0.013520) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.304128 / 1.841788 (-0.537659) | 17.950215 / 8.074308 (9.875907) | 13.673768 / 10.191392 (3.482376) | 0.129863 / 0.680424 (-0.550561) | 0.016720 / 0.534201 (-0.517481) | 0.329795 / 0.579283 (-0.249488) | 0.339057 / 0.434364 (-0.095307) | 0.382279 / 0.540337 (-0.158059) | 0.507337 / 1.386936 (-0.879599) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#ef05b6f99a2b19990c6f5e4e28d95d28781570db \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006199 / 0.011353 (-0.005154) | 0.003749 / 0.011008 (-0.007259) | 0.080600 / 0.038508 (0.042092) | 0.061017 / 0.023109 (0.037908) | 0.319966 / 0.275898 (0.044067) | 0.354937 / 0.323480 (0.031457) | 0.004854 / 0.007986 (-0.003131) | 0.002996 / 0.004328 (-0.001333) | 0.063100 / 0.004250 (0.058849) | 0.050063 / 0.037052 (0.013011) | 0.316744 / 0.258489 (0.058255) | 0.358001 / 0.293841 (0.064160) | 0.027503 / 0.128546 (-0.101043) | 0.007876 / 0.075646 (-0.067771) | 0.262211 / 0.419271 (-0.157060) | 0.045717 / 0.043533 (0.002184) | 0.317188 / 0.255139 (0.062049) | 0.342404 / 0.283200 (0.059205) | 0.020194 / 0.141683 (-0.121489) | 1.498672 / 1.452155 (0.046517) | 1.545479 / 1.492716 (0.052762) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.210985 / 0.018006 (0.192979) | 0.433592 / 0.000490 (0.433102) | 0.002864 / 0.000200 (0.002664) | 0.000079 / 0.000054 (0.000025) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023463 / 0.037411 (-0.013948) | 0.073375 / 0.014526 (0.058850) | 0.083082 / 0.176557 (-0.093475) | 0.142583 / 0.737135 (-0.594552) | 0.084267 / 0.296338 (-0.212071) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.412890 / 0.215209 (0.197681) | 4.131421 / 2.077655 (2.053766) | 1.969164 / 1.504120 (0.465044) | 1.772379 / 1.541195 (0.231185) | 1.834154 / 1.468490 (0.365664) | 0.496290 / 4.584777 (-4.088487) | 3.056504 / 3.745712 (-0.689208) | 3.400962 / 5.269862 (-1.868900) | 2.120575 / 4.565676 (-2.445101) | 0.056932 / 0.424275 (-0.367343) | 0.006412 / 0.007607 (-0.001195) | 0.484521 / 0.226044 (0.258477) | 4.817474 / 2.268929 (2.548545) | 2.464075 / 55.444624 (-52.980549) | 2.085056 / 6.876477 (-4.791421) | 2.324516 / 2.142072 (0.182444) | 0.592013 / 4.805227 (-4.213214) | 0.132232 / 6.500664 (-6.368432) | 0.062825 / 0.075469 (-0.012645) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.228080 / 1.841788 (-0.613708) | 18.555385 / 8.074308 (10.481077) | 13.939565 / 10.191392 (3.748173) | 0.145979 / 0.680424 (-0.534445) | 0.016823 / 0.534201 (-0.517377) | 0.330569 / 0.579283 (-0.248714) | 0.358094 / 0.434364 (-0.076270) | 0.384642 / 0.540337 (-0.155696) | 0.518347 / 1.386936 (-0.868589) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006198 / 0.011353 (-0.005155) | 0.003670 / 0.011008 (-0.007338) | 0.062502 / 0.038508 (0.023994) | 0.064339 / 0.023109 (0.041229) | 0.428414 / 0.275898 (0.152516) | 0.463899 / 0.323480 (0.140420) | 0.005524 / 0.007986 (-0.002462) | 0.002915 / 0.004328 (-0.001413) | 0.062521 / 0.004250 (0.058270) | 0.051182 / 0.037052 (0.014130) | 0.431144 / 0.258489 (0.172655) | 0.469465 / 0.293841 (0.175624) | 0.027463 / 0.128546 (-0.101083) | 0.007974 / 0.075646 (-0.067673) | 0.068029 / 0.419271 (-0.351242) | 0.042123 / 0.043533 (-0.001409) | 0.428667 / 0.255139 (0.173528) | 0.455917 / 0.283200 (0.172717) | 0.023264 / 0.141683 (-0.118419) | 1.426986 / 1.452155 (-0.025168) | 1.500049 / 1.492716 (0.007332) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.207264 / 0.018006 (0.189258) | 0.440738 / 0.000490 (0.440248) | 0.000802 / 0.000200 (0.000602) | 0.000062 / 0.000054 (0.000008) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.026245 / 0.037411 (-0.011166) | 0.078749 / 0.014526 (0.064223) | 0.087873 / 0.176557 (-0.088684) | 0.141518 / 0.737135 (-0.595617) | 0.089811 / 0.296338 (-0.206527) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.418955 / 0.215209 (0.203746) | 4.177881 / 2.077655 (2.100226) | 2.162678 / 1.504120 (0.658558) | 1.998969 / 1.541195 (0.457775) | 2.066720 / 1.468490 (0.598230) | 0.496850 / 4.584777 (-4.087927) | 3.041179 / 3.745712 (-0.704534) | 4.126039 / 5.269862 (-1.143823) | 2.740507 / 4.565676 (-1.825169) | 0.058025 / 0.424275 (-0.366250) | 0.006846 / 0.007607 (-0.000761) | 0.493281 / 0.226044 (0.267237) | 4.930196 / 2.268929 (2.661268) | 2.685152 / 55.444624 (-52.759472) | 2.378247 / 6.876477 (-4.498230) | 2.469103 / 2.142072 (0.327031) | 0.585346 / 4.805227 (-4.219882) | 0.126099 / 6.500664 (-6.374565) | 0.062946 / 0.075469 (-0.012523) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.313892 / 1.841788 (-0.527896) | 19.177117 / 8.074308 (11.102809) | 14.081321 / 10.191392 (3.889929) | 0.133948 / 0.680424 (-0.546476) | 0.017128 / 0.534201 (-0.517073) | 0.332241 / 0.579283 (-0.247042) | 0.373218 / 0.434364 (-0.061145) | 0.395308 / 0.540337 (-0.145030) | 0.529883 / 1.386936 (-0.857053) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#16f7c7677942083436062b904b74643accb9bcac \"CML watermark\")\n" ]

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[ "Thanks for reporting, @bilelomrani1.\r\n\r\nWe are fixing it. ", "We have fixed it. We are planning to do a patch release today." ]

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[ "Seems like the problem isn't with the library, but the dataset itself hosted on AWS S3.\r\n\r\nIts [homepage](https://s3.amazonaws.com/amazon-reviews-pds/readme.html) returns an `AccessDenied` XML response, which is the same thing you get if you try to log the `record` that triggers the exception\r\n\r\n```python\r\ntry:\r\n example = self.info.features.encode_example(record) if self.info.features is not None else record\r\nexcept Exception as e:\r\n print(record)\r\n```\r\n\r\n⬇️\r\n\r\n```\r\n{'<?xml version=\"1.0\" encoding=\"UTF-8\"?>': '<Error><Code>AccessDenied</Code><Message>Access Denied</Message><RequestId>N2HFJ82ZV8SZW9BV</RequestId><HostId>Zw2DQ0V2GdRmvH5qWEpumK4uj5+W8YPcilQbN9fLBr3VqQOcKPHOhUZLG3LcM9X5fkOetxp48Os=</HostId></Error>'}\r\n```", "I'm getting same errors when loading this dataset", "I have figured it out. there was an option of **parquet formated files** i downloaded some from there. ", "this dataset is unfortunately no longer public", "Thanks for reporting, @IqraBaluch.\r\n\r\nWe contacted the authors and unfortunately they reported that Amazon has decided to stop distributing this dataset.", "If anyone still needs this dataset, you could find it on kaggle here : https://www.kaggle.com/datasets/cynthiarempel/amazon-us-customer-reviews-dataset", "Thanks @Maryam-Mostafa ", "@albertvillanova don't tell 'em, we have figured it out. XD", "I noticed that some book data is missing, we can only get Books_v1_02 data. \r\nIs there any way we can get the Books_v1_00 and Books_v1_01? \r\nReally appreciate !!!", "@albertvillanova will this dataset be retired given the data are no longer hosted on S3? What is done in cases such as these?" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "> I am not sure why the case distinction between local and remote filesystems is even necessary for DatasetDict when saving to disk. Imo this could be removed (leaving only fs.makedirs(dataset_dict_path, exist_ok=True)).\r\n\r\nIndeed. But it's better to address this in a separate PR.", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007696 / 0.011353 (-0.003656) | 0.004497 / 0.011008 (-0.006511) | 0.099302 / 0.038508 (0.060794) | 0.083360 / 0.023109 (0.060251) | 0.393483 / 0.275898 (0.117585) | 0.450505 / 0.323480 (0.127025) | 0.004610 / 0.007986 (-0.003376) | 0.003637 / 0.004328 (-0.000692) | 0.075752 / 0.004250 (0.071501) | 0.064034 / 0.037052 (0.026982) | 0.397785 / 0.258489 (0.139296) | 0.462948 / 0.293841 (0.169107) | 0.035902 / 0.128546 (-0.092644) | 0.009640 / 0.075646 (-0.066007) | 0.342299 / 0.419271 (-0.076973) | 0.059586 / 0.043533 (0.016053) | 0.404918 / 0.255139 (0.149779) | 0.440889 / 0.283200 (0.157690) | 0.028981 / 0.141683 (-0.112702) | 1.775380 / 1.452155 (0.323226) | 1.866663 / 1.492716 (0.373946) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.249080 / 0.018006 (0.231074) | 0.456460 / 0.000490 (0.455970) | 0.028145 / 0.000200 (0.027945) | 0.000402 / 0.000054 (0.000347) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030373 / 0.037411 (-0.007038) | 0.088562 / 0.014526 (0.074036) | 0.122837 / 0.176557 (-0.053720) | 0.167122 / 0.737135 (-0.570014) | 0.103953 / 0.296338 (-0.192385) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.431714 / 0.215209 (0.216505) | 4.182224 / 2.077655 (2.104570) | 2.025650 / 1.504120 (0.521530) | 1.838905 / 1.541195 (0.297710) | 1.868710 / 1.468490 (0.400219) | 0.538422 / 4.584777 (-4.046355) | 4.038941 / 3.745712 (0.293228) | 3.717695 / 5.269862 (-1.552166) | 2.313197 / 4.565676 (-2.252479) | 0.061060 / 0.424275 (-0.363215) | 0.008248 / 0.007607 (0.000641) | 0.497438 / 0.226044 (0.271394) | 4.946663 / 2.268929 (2.677734) | 2.571841 / 55.444624 (-52.872784) | 2.155894 / 6.876477 (-4.720583) | 2.183180 / 2.142072 (0.041107) | 0.639810 / 4.805227 (-4.165417) | 0.153273 / 6.500664 (-6.347391) | 0.068606 / 0.075469 (-0.006863) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.376152 / 1.841788 (-0.465635) | 20.747088 / 8.074308 (12.672780) | 15.200311 / 10.191392 (5.008919) | 0.166380 / 0.680424 (-0.514043) | 0.021417 / 0.534201 (-0.512784) | 0.435677 / 0.579283 (-0.143606) | 0.460412 / 0.434364 (0.026048) | 0.509978 / 0.540337 (-0.030359) | 0.702506 / 1.386936 (-0.684430) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007378 / 0.011353 (-0.003975) | 0.003938 / 0.011008 (-0.007070) | 0.067095 / 0.038508 (0.028587) | 0.082252 / 0.023109 (0.059143) | 0.420317 / 0.275898 (0.144419) | 0.477496 / 0.323480 (0.154017) | 0.006259 / 0.007986 (-0.001727) | 0.003513 / 0.004328 (-0.000816) | 0.072107 / 0.004250 (0.067856) | 0.061737 / 0.037052 (0.024684) | 0.444142 / 0.258489 (0.185653) | 0.488926 / 0.293841 (0.195085) | 0.033623 / 0.128546 (-0.094923) | 0.008091 / 0.075646 (-0.067555) | 0.073997 / 0.419271 (-0.345274) | 0.051295 / 0.043533 (0.007762) | 0.442551 / 0.255139 (0.187412) | 0.462713 / 0.283200 (0.179513) | 0.023115 / 0.141683 (-0.118568) | 1.645759 / 1.452155 (0.193604) | 1.758121 / 1.492716 (0.265405) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.233450 / 0.018006 (0.215444) | 0.445384 / 0.000490 (0.444894) | 0.006412 / 0.000200 (0.006212) | 0.000111 / 0.000054 (0.000056) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032446 / 0.037411 (-0.004965) | 0.098515 / 0.014526 (0.083989) | 0.109095 / 0.176557 (-0.067462) | 0.167645 / 0.737135 (-0.569490) | 0.110403 / 0.296338 (-0.185936) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.470189 / 0.215209 (0.254980) | 4.663224 / 2.077655 (2.585569) | 2.504474 / 1.504120 (1.000354) | 2.282867 / 1.541195 (0.741673) | 2.331598 / 1.468490 (0.863108) | 0.554421 / 4.584777 (-4.030356) | 4.078657 / 3.745712 (0.332945) | 3.516339 / 5.269862 (-1.753523) | 2.239134 / 4.565676 (-2.326542) | 0.062690 / 0.424275 (-0.361585) | 0.008406 / 0.007607 (0.000799) | 0.533827 / 0.226044 (0.307782) | 5.423984 / 2.268929 (3.155055) | 2.972784 / 55.444624 (-52.471840) | 2.699056 / 6.876477 (-4.177421) | 2.844403 / 2.142072 (0.702331) | 0.639194 / 4.805227 (-4.166033) | 0.142097 / 6.500664 (-6.358567) | 0.064646 / 0.075469 (-0.010823) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.544640 / 1.841788 (-0.297148) | 21.453429 / 8.074308 (13.379121) | 15.610723 / 10.191392 (5.419331) | 0.207796 / 0.680424 (-0.472628) | 0.021912 / 0.534201 (-0.512289) | 0.430472 / 0.579283 (-0.148811) | 0.467530 / 0.434364 (0.033166) | 0.541339 / 0.540337 (0.001002) | 0.721976 / 1.386936 (-0.664960) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#691c4bc65888005f3aadea5c104fdbc87694882d \"CML watermark\")\n" ]

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[ "Actually, my bad -- specifying\r\n```python\r\nfoo.set_format('numpy', ['vectors'], output_all_columns=True)\r\n```\r\nfixes it." ]

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[ "The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6096). All of your documentation changes will be reflected on that endpoint.", "Hi here @lhoestq @mariosasko I just realised this PR is still open, should we close it in case this is something not to include within `datasets`, or should we merge? Let me know whatever you decide 🤗", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005011 / 0.011353 (-0.006342) | 0.003203 / 0.011008 (-0.007806) | 0.064033 / 0.038508 (0.025524) | 0.029152 / 0.023109 (0.006043) | 0.242884 / 0.275898 (-0.033014) | 0.263517 / 0.323480 (-0.059963) | 0.004088 / 0.007986 (-0.003898) | 0.002570 / 0.004328 (-0.001759) | 0.049061 / 0.004250 (0.044811) | 0.040170 / 0.037052 (0.003117) | 0.263305 / 0.258489 (0.004816) | 0.286255 / 0.293841 (-0.007586) | 0.028206 / 0.128546 (-0.100340) | 0.010337 / 0.075646 (-0.065309) | 0.206235 / 0.419271 (-0.213036) | 0.038182 / 0.043533 (-0.005351) | 0.246486 / 0.255139 (-0.008653) | 0.263077 / 0.283200 (-0.020122) | 0.017850 / 0.141683 (-0.123833) | 1.173921 / 1.452155 (-0.278234) | 1.255583 / 1.492716 (-0.237133) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.090278 / 0.018006 (0.072272) | 0.298146 / 0.000490 (0.297657) | 0.000215 / 0.000200 (0.000015) | 0.000043 / 0.000054 (-0.000011) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.018021 / 0.037411 (-0.019390) | 0.061434 / 0.014526 (0.046908) | 0.072617 / 0.176557 (-0.103939) | 0.119063 / 0.737135 (-0.618072) | 0.073997 / 0.296338 (-0.222341) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.288496 / 0.215209 (0.073287) | 2.794943 / 2.077655 (0.717288) | 1.538299 / 1.504120 (0.034179) | 1.399164 / 1.541195 (-0.142031) | 1.419104 / 1.468490 (-0.049386) | 0.566147 / 4.584777 (-4.018630) | 2.386687 / 3.745712 (-1.359025) | 2.723584 / 5.269862 (-2.546278) | 1.699161 / 4.565676 (-2.866515) | 0.062526 / 0.424275 (-0.361750) | 0.004927 / 0.007607 (-0.002680) | 0.345132 / 0.226044 (0.119087) | 3.389634 / 2.268929 (1.120706) | 1.898012 / 55.444624 (-53.546612) | 1.599050 / 6.876477 (-5.277427) | 1.614289 / 2.142072 (-0.527783) | 0.656716 / 4.805227 (-4.148511) | 0.118480 / 6.500664 (-6.382184) | 0.041913 / 0.075469 (-0.033557) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.968676 / 1.841788 (-0.873111) | 11.184668 / 8.074308 (3.110360) | 9.249912 / 10.191392 (-0.941480) | 0.141139 / 0.680424 (-0.539285) | 0.014207 / 0.534201 (-0.519994) | 0.287603 / 0.579283 (-0.291680) | 0.262792 / 0.434364 (-0.171572) | 0.340239 / 0.540337 (-0.200099) | 0.437471 / 1.386936 (-0.949465) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005268 / 0.011353 (-0.006085) | 0.003142 / 0.011008 (-0.007866) | 0.049333 / 0.038508 (0.010825) | 0.029558 / 0.023109 (0.006449) | 0.270716 / 0.275898 (-0.005182) | 0.293834 / 0.323480 (-0.029646) | 0.004285 / 0.007986 (-0.003701) | 0.002703 / 0.004328 (-0.001626) | 0.048857 / 0.004250 (0.044607) | 0.043456 / 0.037052 (0.006404) | 0.286058 / 0.258489 (0.027569) | 0.313491 / 0.293841 (0.019650) | 0.029336 / 0.128546 (-0.099210) | 0.010287 / 0.075646 (-0.065360) | 0.057753 / 0.419271 (-0.361518) | 0.050867 / 0.043533 (0.007334) | 0.271717 / 0.255139 (0.016578) | 0.291468 / 0.283200 (0.008268) | 0.018668 / 0.141683 (-0.123015) | 1.137399 / 1.452155 (-0.314755) | 1.186315 / 1.492716 (-0.306401) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.090289 / 0.018006 (0.072283) | 0.297987 / 0.000490 (0.297497) | 0.000227 / 0.000200 (0.000027) | 0.000044 / 0.000054 (-0.000010) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.021012 / 0.037411 (-0.016399) | 0.075046 / 0.014526 (0.060520) | 0.085295 / 0.176557 (-0.091261) | 0.123879 / 0.737135 (-0.613257) | 0.086572 / 0.296338 (-0.209766) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.293350 / 0.215209 (0.078141) | 2.875958 / 2.077655 (0.798304) | 1.586460 / 1.504120 (0.082340) | 1.467950 / 1.541195 (-0.073245) | 1.453478 / 1.468490 (-0.015012) | 0.566083 / 4.584777 (-4.018693) | 2.462582 / 3.745712 (-1.283130) | 2.609367 / 5.269862 (-2.660495) | 1.709691 / 4.565676 (-2.855985) | 0.062928 / 0.424275 (-0.361347) | 0.005040 / 0.007607 (-0.002567) | 0.337997 / 0.226044 (0.111952) | 3.347235 / 2.268929 (1.078306) | 1.923940 / 55.444624 (-53.520684) | 1.657731 / 6.876477 (-5.218746) | 1.747469 / 2.142072 (-0.394604) | 0.657061 / 4.805227 (-4.148167) | 0.116655 / 6.500664 (-6.384009) | 0.040363 / 0.075469 (-0.035106) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.011171 / 1.841788 (-0.830617) | 11.705905 / 8.074308 (3.631597) | 10.064391 / 10.191392 (-0.127001) | 0.141681 / 0.680424 (-0.538743) | 0.014763 / 0.534201 (-0.519438) | 0.286425 / 0.579283 (-0.292858) | 0.271036 / 0.434364 (-0.163328) | 0.321393 / 0.540337 (-0.218944) | 0.424539 / 1.386936 (-0.962397) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#e52f4d0cf1cb89a9719b42fff13a891f92d51e04 \"CML watermark\")\n", "Thanks @alvarobartt. \r\n\r\nI am linking this PR to the corresponding issue (on the right column, under \"Development\") and closing the issue.\r\n\r\nFor future contributions, please add to the PR description the word \"fix\" followed by the issue number, e.g.:\r\n```\r\nFix #6086.\r\n```\r\n- I have edited the PR description to add this.", "> Thanks @alvarobartt.\r\n> \r\n> I am linking this PR to the corresponding issue (on the right column, under \"Development\") and closing the issue.\r\n> \r\n> For future contributions, please add to the PR description the word \"fix\" followed by the issue number, e.g.:\r\n> \r\n> ```\r\n> Fix #6086.\r\n> ```\r\n> \r\n> * I have edited the PR description to add this.\r\n\r\nHi @albertvillanova, fair, I missed that, thanks for the edit and the heads up!" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.012497 / 0.011353 (0.001144) | 0.005355 / 0.011008 (-0.005654) | 0.106018 / 0.038508 (0.067510) | 0.093069 / 0.023109 (0.069960) | 0.394699 / 0.275898 (0.118801) | 0.449723 / 0.323480 (0.126243) | 0.006434 / 0.007986 (-0.001552) | 0.004187 / 0.004328 (-0.000141) | 0.079620 / 0.004250 (0.075370) | 0.062513 / 0.037052 (0.025460) | 0.410305 / 0.258489 (0.151816) | 0.467231 / 0.293841 (0.173390) | 0.048130 / 0.128546 (-0.080416) | 0.013747 / 0.075646 (-0.061899) | 0.357979 / 0.419271 (-0.061293) | 0.064764 / 0.043533 (0.021231) | 0.411029 / 0.255139 (0.155890) | 0.454734 / 0.283200 (0.171534) | 0.037215 / 0.141683 (-0.104468) | 1.801331 / 1.452155 (0.349176) | 1.951628 / 1.492716 (0.458912) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.231073 / 0.018006 (0.213067) | 0.564179 / 0.000490 (0.563689) | 0.000947 / 0.000200 (0.000747) | 0.000091 / 0.000054 (0.000036) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030629 / 0.037411 (-0.006783) | 0.092522 / 0.014526 (0.077996) | 0.109781 / 0.176557 (-0.066775) | 0.183185 / 0.737135 (-0.553950) | 0.109679 / 0.296338 (-0.186660) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.600095 / 0.215209 (0.384886) | 6.072868 / 2.077655 (3.995213) | 2.684109 / 1.504120 (1.179989) | 2.436204 / 1.541195 (0.895010) | 2.514667 / 1.468490 (1.046177) | 0.865455 / 4.584777 (-3.719322) | 5.245561 / 3.745712 (1.499849) | 5.628688 / 5.269862 (0.358826) | 3.457343 / 4.565676 (-1.108333) | 0.107563 / 0.424275 (-0.316712) | 0.008803 / 0.007607 (0.001196) | 0.754014 / 0.226044 (0.527970) | 7.341226 / 2.268929 (5.072297) | 3.482090 / 55.444624 (-51.962534) | 2.726071 / 6.876477 (-4.150406) | 3.168494 / 2.142072 (1.026422) | 1.023517 / 4.805227 (-3.781710) | 0.207440 / 6.500664 (-6.293224) | 0.073642 / 0.075469 (-0.001827) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.588636 / 1.841788 (-0.253152) | 23.305257 / 8.074308 (15.230949) | 22.071476 / 10.191392 (11.880084) | 0.242044 / 0.680424 (-0.438379) | 0.028830 / 0.534201 (-0.505371) | 0.461414 / 0.579283 (-0.117869) | 0.591024 / 0.434364 (0.156660) | 0.548984 / 0.540337 (0.008646) | 0.783318 / 1.386936 (-0.603618) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008724 / 0.011353 (-0.002629) | 0.004638 / 0.011008 (-0.006371) | 0.081024 / 0.038508 (0.042516) | 0.077533 / 0.023109 (0.054423) | 0.444827 / 0.275898 (0.168929) | 0.507812 / 0.323480 (0.184332) | 0.006017 / 0.007986 (-0.001968) | 0.004204 / 0.004328 (-0.000124) | 0.082154 / 0.004250 (0.077904) | 0.063818 / 0.037052 (0.026765) | 0.463468 / 0.258489 (0.204979) | 0.536784 / 0.293841 (0.242943) | 0.046393 / 0.128546 (-0.082153) | 0.014349 / 0.075646 (-0.061298) | 0.089213 / 0.419271 (-0.330059) | 0.058313 / 0.043533 (0.014780) | 0.463674 / 0.255139 (0.208535) | 0.495865 / 0.283200 (0.212665) | 0.036586 / 0.141683 (-0.105096) | 1.801601 / 1.452155 (0.349447) | 1.871219 / 1.492716 (0.378502) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.273411 / 0.018006 (0.255405) | 0.531745 / 0.000490 (0.531255) | 0.000424 / 0.000200 (0.000224) | 0.000130 / 0.000054 (0.000076) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.037689 / 0.037411 (0.000278) | 0.109544 / 0.014526 (0.095019) | 0.124053 / 0.176557 (-0.052504) | 0.179960 / 0.737135 (-0.557175) | 0.118218 / 0.296338 (-0.178120) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.639859 / 0.215209 (0.424650) | 6.347385 / 2.077655 (4.269730) | 2.910188 / 1.504120 (1.406068) | 2.698821 / 1.541195 (1.157626) | 2.802652 / 1.468490 (1.334161) | 0.816109 / 4.584777 (-3.768668) | 5.190313 / 3.745712 (1.444601) | 4.642684 / 5.269862 (-0.627178) | 2.948092 / 4.565676 (-1.617584) | 0.095877 / 0.424275 (-0.328398) | 0.009631 / 0.007607 (0.002024) | 0.779136 / 0.226044 (0.553091) | 7.611586 / 2.268929 (5.342658) | 3.760804 / 55.444624 (-51.683820) | 3.139355 / 6.876477 (-3.737122) | 3.419660 / 2.142072 (1.277587) | 1.036397 / 4.805227 (-3.768831) | 0.224015 / 6.500664 (-6.276649) | 0.084037 / 0.075469 (0.008568) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.710608 / 1.841788 (-0.131179) | 24.447646 / 8.074308 (16.373338) | 21.345322 / 10.191392 (11.153930) | 0.232383 / 0.680424 (-0.448040) | 0.026381 / 0.534201 (-0.507820) | 0.475995 / 0.579283 (-0.103289) | 0.611939 / 0.434364 (0.177575) | 0.541441 / 0.540337 (0.001104) | 0.742796 / 1.386936 (-0.644140) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#7929929525e734f7232cfc68d1d22fb8d53c54a3 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006140 / 0.011353 (-0.005213) | 0.003664 / 0.011008 (-0.007344) | 0.080765 / 0.038508 (0.042257) | 0.065009 / 0.023109 (0.041900) | 0.312787 / 0.275898 (0.036889) | 0.354637 / 0.323480 (0.031157) | 0.004846 / 0.007986 (-0.003140) | 0.003019 / 0.004328 (-0.001310) | 0.062823 / 0.004250 (0.058573) | 0.050446 / 0.037052 (0.013394) | 0.314478 / 0.258489 (0.055989) | 0.360206 / 0.293841 (0.066365) | 0.027282 / 0.128546 (-0.101265) | 0.008024 / 0.075646 (-0.067622) | 0.262125 / 0.419271 (-0.157146) | 0.045793 / 0.043533 (0.002260) | 0.310508 / 0.255139 (0.055369) | 0.340899 / 0.283200 (0.057699) | 0.021850 / 0.141683 (-0.119833) | 1.510791 / 1.452155 (0.058636) | 1.570661 / 1.492716 (0.077944) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.192136 / 0.018006 (0.174130) | 0.449310 / 0.000490 (0.448820) | 0.004556 / 0.000200 (0.004356) | 0.000078 / 0.000054 (0.000023) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023689 / 0.037411 (-0.013722) | 0.076316 / 0.014526 (0.061791) | 0.084800 / 0.176557 (-0.091757) | 0.153154 / 0.737135 (-0.583981) | 0.086467 / 0.296338 (-0.209871) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.432254 / 0.215209 (0.217045) | 4.305098 / 2.077655 (2.227443) | 2.304267 / 1.504120 (0.800147) | 2.139503 / 1.541195 (0.598309) | 2.220414 / 1.468490 (0.751924) | 0.498595 / 4.584777 (-4.086182) | 3.058593 / 3.745712 (-0.687119) | 4.324501 / 5.269862 (-0.945361) | 2.667731 / 4.565676 (-1.897946) | 0.059917 / 0.424275 (-0.364358) | 0.006829 / 0.007607 (-0.000778) | 0.504608 / 0.226044 (0.278564) | 5.044480 / 2.268929 (2.775552) | 2.753080 / 55.444624 (-52.691545) | 2.449265 / 6.876477 (-4.427212) | 2.635113 / 2.142072 (0.493040) | 0.590760 / 4.805227 (-4.214467) | 0.130133 / 6.500664 (-6.370532) | 0.062759 / 0.075469 (-0.012710) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.267014 / 1.841788 (-0.574773) | 18.562890 / 8.074308 (10.488581) | 13.991257 / 10.191392 (3.799865) | 0.147108 / 0.680424 (-0.533315) | 0.017216 / 0.534201 (-0.516985) | 0.330317 / 0.579283 (-0.248966) | 0.351328 / 0.434364 (-0.083036) | 0.381097 / 0.540337 (-0.159241) | 0.558718 / 1.386936 (-0.828218) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006385 / 0.011353 (-0.004967) | 0.003668 / 0.011008 (-0.007340) | 0.062581 / 0.038508 (0.024073) | 0.067006 / 0.023109 (0.043896) | 0.428465 / 0.275898 (0.152567) | 0.466106 / 0.323480 (0.142626) | 0.005806 / 0.007986 (-0.002180) | 0.003117 / 0.004328 (-0.001212) | 0.063554 / 0.004250 (0.059303) | 0.054404 / 0.037052 (0.017352) | 0.431168 / 0.258489 (0.172679) | 0.467578 / 0.293841 (0.173737) | 0.027779 / 0.128546 (-0.100767) | 0.008055 / 0.075646 (-0.067592) | 0.067718 / 0.419271 (-0.351554) | 0.043042 / 0.043533 (-0.000491) | 0.425926 / 0.255139 (0.170787) | 0.453699 / 0.283200 (0.170500) | 0.023495 / 0.141683 (-0.118187) | 1.435356 / 1.452155 (-0.016799) | 1.509340 / 1.492716 (0.016624) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.242322 / 0.018006 (0.224316) | 0.446865 / 0.000490 (0.446376) | 0.001079 / 0.000200 (0.000879) | 0.000065 / 0.000054 (0.000010) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025376 / 0.037411 (-0.012035) | 0.079373 / 0.014526 (0.064847) | 0.088554 / 0.176557 (-0.088002) | 0.141026 / 0.737135 (-0.596109) | 0.090666 / 0.296338 (-0.205672) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.434800 / 0.215209 (0.219590) | 4.314491 / 2.077655 (2.236836) | 2.320688 / 1.504120 (0.816568) | 2.163941 / 1.541195 (0.622747) | 2.292576 / 1.468490 (0.824086) | 0.500226 / 4.584777 (-4.084551) | 3.114604 / 3.745712 (-0.631108) | 4.206997 / 5.269862 (-1.062864) | 2.461126 / 4.565676 (-2.104551) | 0.057717 / 0.424275 (-0.366558) | 0.006989 / 0.007607 (-0.000618) | 0.515623 / 0.226044 (0.289579) | 5.155301 / 2.268929 (2.886372) | 2.733589 / 55.444624 (-52.711035) | 2.542111 / 6.876477 (-4.334366) | 2.697035 / 2.142072 (0.554963) | 0.594213 / 4.805227 (-4.211014) | 0.128537 / 6.500664 (-6.372127) | 0.065223 / 0.075469 (-0.010246) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.306738 / 1.841788 (-0.535050) | 19.065370 / 8.074308 (10.991062) | 14.242096 / 10.191392 (4.050704) | 0.146177 / 0.680424 (-0.534246) | 0.017186 / 0.534201 (-0.517015) | 0.337224 / 0.579283 (-0.242059) | 0.349997 / 0.434364 (-0.084367) | 0.390408 / 0.540337 (-0.149930) | 0.524597 / 1.386936 (-0.862339) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#69ec36948b0ef1f194e9dcd43ec53a50b7708962 \"CML watermark\")\n" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008996 / 0.011353 (-0.002357) | 0.004976 / 0.011008 (-0.006033) | 0.114495 / 0.038508 (0.075987) | 0.083958 / 0.023109 (0.060849) | 0.408395 / 0.275898 (0.132497) | 0.456757 / 0.323480 (0.133278) | 0.006396 / 0.007986 (-0.001589) | 0.004315 / 0.004328 (-0.000014) | 0.093558 / 0.004250 (0.089307) | 0.062067 / 0.037052 (0.025014) | 0.423452 / 0.258489 (0.164963) | 0.463947 / 0.293841 (0.170106) | 0.049934 / 0.128546 (-0.078613) | 0.013937 / 0.075646 (-0.061709) | 0.365809 / 0.419271 (-0.053463) | 0.067382 / 0.043533 (0.023849) | 0.418860 / 0.255139 (0.163721) | 0.463264 / 0.283200 (0.180065) | 0.034392 / 0.141683 (-0.107291) | 1.870685 / 1.452155 (0.418530) | 1.975313 / 1.492716 (0.482597) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.261748 / 0.018006 (0.243742) | 0.645510 / 0.000490 (0.645020) | 0.000376 / 0.000200 (0.000176) | 0.000077 / 0.000054 (0.000023) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032129 / 0.037411 (-0.005282) | 0.104309 / 0.014526 (0.089783) | 0.113154 / 0.176557 (-0.063403) | 0.186795 / 0.737135 (-0.550341) | 0.115584 / 0.296338 (-0.180755) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.577755 / 0.215209 (0.362546) | 5.984988 / 2.077655 (3.907333) | 2.581967 / 1.504120 (1.077848) | 2.305744 / 1.541195 (0.764549) | 2.359618 / 1.468490 (0.891128) | 0.882892 / 4.584777 (-3.701885) | 5.755578 / 3.745712 (2.009866) | 8.718373 / 5.269862 (3.448511) | 5.217586 / 4.565676 (0.651909) | 0.099785 / 0.424275 (-0.324490) | 0.009008 / 0.007607 (0.001401) | 0.730937 / 0.226044 (0.504892) | 7.265309 / 2.268929 (4.996381) | 3.487167 / 55.444624 (-51.957457) | 2.750090 / 6.876477 (-4.126386) | 3.060198 / 2.142072 (0.918125) | 1.069945 / 4.805227 (-3.735282) | 0.227143 / 6.500664 (-6.273521) | 0.083601 / 0.075469 (0.008132) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.754375 / 1.841788 (-0.087412) | 25.448731 / 8.074308 (17.374423) | 22.385943 / 10.191392 (12.194551) | 0.249921 / 0.680424 (-0.430503) | 0.034138 / 0.534201 (-0.500063) | 0.535170 / 0.579283 (-0.044113) | 0.605474 / 0.434364 (0.171110) | 0.580025 / 0.540337 (0.039688) | 0.810537 / 1.386936 (-0.576399) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009117 / 0.011353 (-0.002236) | 0.005029 / 0.011008 (-0.005979) | 0.082200 / 0.038508 (0.043691) | 0.082386 / 0.023109 (0.059277) | 0.491869 / 0.275898 (0.215971) | 0.546735 / 0.323480 (0.223255) | 0.006893 / 0.007986 (-0.001093) | 0.004571 / 0.004328 (0.000243) | 0.085361 / 0.004250 (0.081111) | 0.063342 / 0.037052 (0.026290) | 0.522522 / 0.258489 (0.264033) | 0.560784 / 0.293841 (0.266943) | 0.047685 / 0.128546 (-0.080861) | 0.017741 / 0.075646 (-0.057905) | 0.098204 / 0.419271 (-0.321067) | 0.062919 / 0.043533 (0.019386) | 0.504005 / 0.255139 (0.248866) | 0.547022 / 0.283200 (0.263823) | 0.033731 / 0.141683 (-0.107952) | 1.869765 / 1.452155 (0.417610) | 1.935867 / 1.492716 (0.443151) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.304756 / 0.018006 (0.286750) | 0.623647 / 0.000490 (0.623157) | 0.000508 / 0.000200 (0.000308) | 0.000090 / 0.000054 (0.000035) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.043627 / 0.037411 (0.006216) | 0.107183 / 0.014526 (0.092657) | 0.119304 / 0.176557 (-0.057253) | 0.192651 / 0.737135 (-0.544485) | 0.125118 / 0.296338 (-0.171221) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.669980 / 0.215209 (0.454771) | 6.566068 / 2.077655 (4.488413) | 3.136271 / 1.504120 (1.632152) | 2.964643 / 1.541195 (1.423448) | 2.936772 / 1.468490 (1.468282) | 0.885205 / 4.584777 (-3.699572) | 5.539062 / 3.745712 (1.793350) | 5.006133 / 5.269862 (-0.263729) | 3.313697 / 4.565676 (-1.251979) | 0.102975 / 0.424275 (-0.321301) | 0.010759 / 0.007607 (0.003152) | 0.791176 / 0.226044 (0.565132) | 7.822195 / 2.268929 (5.553266) | 3.982315 / 55.444624 (-51.462309) | 3.357026 / 6.876477 (-3.519451) | 3.561307 / 2.142072 (1.419234) | 1.056966 / 4.805227 (-3.748261) | 0.220476 / 6.500664 (-6.280188) | 0.090535 / 0.075469 (0.015066) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.897984 / 1.841788 (0.056196) | 26.411411 / 8.074308 (18.337103) | 22.951939 / 10.191392 (12.760547) | 0.216091 / 0.680424 (-0.464333) | 0.037005 / 0.534201 (-0.497196) | 0.505585 / 0.579283 (-0.073698) | 0.617794 / 0.434364 (0.183430) | 0.604631 / 0.540337 (0.064293) | 0.826356 / 1.386936 (-0.560580) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#ca6342c0177adc3a1d114740444e207b8525ed6e \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006850 / 0.011353 (-0.004503) | 0.004062 / 0.011008 (-0.006947) | 0.086587 / 0.038508 (0.048079) | 0.079587 / 0.023109 (0.056478) | 0.353601 / 0.275898 (0.077702) | 0.396399 / 0.323480 (0.072919) | 0.004182 / 0.007986 (-0.003804) | 0.004445 / 0.004328 (0.000117) | 0.065100 / 0.004250 (0.060849) | 0.057386 / 0.037052 (0.020334) | 0.356945 / 0.258489 (0.098456) | 0.407093 / 0.293841 (0.113252) | 0.031949 / 0.128546 (-0.096597) | 0.008525 / 0.075646 (-0.067121) | 0.291310 / 0.419271 (-0.127961) | 0.053638 / 0.043533 (0.010105) | 0.359381 / 0.255139 (0.104242) | 0.399473 / 0.283200 (0.116273) | 0.025880 / 0.141683 (-0.115803) | 1.487604 / 1.452155 (0.035449) | 1.550528 / 1.492716 (0.057812) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.201106 / 0.018006 (0.183099) | 0.457538 / 0.000490 (0.457048) | 0.003995 / 0.000200 (0.003795) | 0.000087 / 0.000054 (0.000032) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030365 / 0.037411 (-0.007046) | 0.088064 / 0.014526 (0.073538) | 0.096432 / 0.176557 (-0.080124) | 0.158063 / 0.737135 (-0.579072) | 0.098258 / 0.296338 (-0.198080) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.405351 / 0.215209 (0.190142) | 4.032639 / 2.077655 (1.954984) | 2.018357 / 1.504120 (0.514237) | 1.848493 / 1.541195 (0.307298) | 1.929401 / 1.468490 (0.460910) | 0.488729 / 4.584777 (-4.096048) | 3.586114 / 3.745712 (-0.159598) | 5.279054 / 5.269862 (0.009193) | 3.113275 / 4.565676 (-1.452402) | 0.057373 / 0.424275 (-0.366902) | 0.007416 / 0.007607 (-0.000191) | 0.485514 / 0.226044 (0.259470) | 4.854389 / 2.268929 (2.585461) | 2.493113 / 55.444624 (-52.951512) | 2.128836 / 6.876477 (-4.747641) | 2.383669 / 2.142072 (0.241596) | 0.588266 / 4.805227 (-4.216962) | 0.133603 / 6.500664 (-6.367061) | 0.061812 / 0.075469 (-0.013657) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.260841 / 1.841788 (-0.580947) | 20.086954 / 8.074308 (12.012646) | 14.620932 / 10.191392 (4.429540) | 0.161525 / 0.680424 (-0.518899) | 0.018102 / 0.534201 (-0.516099) | 0.393810 / 0.579283 (-0.185473) | 0.406974 / 0.434364 (-0.027390) | 0.462732 / 0.540337 (-0.077606) | 0.634221 / 1.386936 (-0.752715) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006692 / 0.011353 (-0.004661) | 0.004068 / 0.011008 (-0.006940) | 0.068009 / 0.038508 (0.029501) | 0.081298 / 0.023109 (0.058189) | 0.363531 / 0.275898 (0.087633) | 0.408482 / 0.323480 (0.085002) | 0.005601 / 0.007986 (-0.002384) | 0.003385 / 0.004328 (-0.000943) | 0.068043 / 0.004250 (0.063792) | 0.059739 / 0.037052 (0.022687) | 0.374043 / 0.258489 (0.115553) | 0.407219 / 0.293841 (0.113378) | 0.031194 / 0.128546 (-0.097352) | 0.008630 / 0.075646 (-0.067017) | 0.073755 / 0.419271 (-0.345517) | 0.049831 / 0.043533 (0.006298) | 0.363664 / 0.255139 (0.108525) | 0.381515 / 0.283200 (0.098315) | 0.026331 / 0.141683 (-0.115352) | 1.507771 / 1.452155 (0.055617) | 1.554403 / 1.492716 (0.061686) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.226309 / 0.018006 (0.208302) | 0.452428 / 0.000490 (0.451938) | 0.000937 / 0.000200 (0.000737) | 0.000069 / 0.000054 (0.000015) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031899 / 0.037411 (-0.005513) | 0.092090 / 0.014526 (0.077564) | 0.100838 / 0.176557 (-0.075718) | 0.153722 / 0.737135 (-0.583413) | 0.101950 / 0.296338 (-0.194389) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.417879 / 0.215209 (0.202669) | 4.171939 / 2.077655 (2.094284) | 2.312937 / 1.504120 (0.808817) | 2.209991 / 1.541195 (0.668796) | 2.329469 / 1.468490 (0.860979) | 0.484576 / 4.584777 (-4.100201) | 3.659198 / 3.745712 (-0.086514) | 5.255227 / 5.269862 (-0.014634) | 3.047430 / 4.565676 (-1.518247) | 0.057029 / 0.424275 (-0.367246) | 0.007735 / 0.007607 (0.000127) | 0.499962 / 0.226044 (0.273918) | 4.991655 / 2.268929 (2.722727) | 2.755999 / 55.444624 (-52.688625) | 2.374034 / 6.876477 (-4.502443) | 2.599759 / 2.142072 (0.457687) | 0.600319 / 4.805227 (-4.204908) | 0.146176 / 6.500664 (-6.354488) | 0.062328 / 0.075469 (-0.013142) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.346065 / 1.841788 (-0.495722) | 20.430343 / 8.074308 (12.356035) | 14.632959 / 10.191392 (4.441567) | 0.167007 / 0.680424 (-0.513417) | 0.018588 / 0.534201 (-0.515613) | 0.396015 / 0.579283 (-0.183268) | 0.429384 / 0.434364 (-0.004980) | 0.467746 / 0.540337 (-0.072591) | 0.615166 / 1.386936 (-0.771770) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#289bcc2ae9bf98c9414b6846ae603178a1816d3f \"CML watermark\")\n" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007498 / 0.011353 (-0.003855) | 0.004158 / 0.011008 (-0.006850) | 0.087568 / 0.038508 (0.049060) | 0.083265 / 0.023109 (0.060156) | 0.378505 / 0.275898 (0.102607) | 0.399025 / 0.323480 (0.075545) | 0.006173 / 0.007986 (-0.001813) | 0.003743 / 0.004328 (-0.000586) | 0.071958 / 0.004250 (0.067707) | 0.059323 / 0.037052 (0.022271) | 0.377084 / 0.258489 (0.118595) | 0.408358 / 0.293841 (0.114517) | 0.035191 / 0.128546 (-0.093356) | 0.009408 / 0.075646 (-0.066238) | 0.312587 / 0.419271 (-0.106685) | 0.058073 / 0.043533 (0.014540) | 0.381977 / 0.255139 (0.126838) | 0.395611 / 0.283200 (0.112411) | 0.024191 / 0.141683 (-0.117491) | 1.572735 / 1.452155 (0.120581) | 1.687186 / 1.492716 (0.194470) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.208886 / 0.018006 (0.190879) | 0.474625 / 0.000490 (0.474135) | 0.006261 / 0.000200 (0.006061) | 0.000093 / 0.000054 (0.000038) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031401 / 0.037411 (-0.006011) | 0.086433 / 0.014526 (0.071907) | 0.108405 / 0.176557 (-0.068152) | 0.174564 / 0.737135 (-0.562571) | 0.099932 / 0.296338 (-0.196407) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.407059 / 0.215209 (0.191850) | 4.102056 / 2.077655 (2.024401) | 1.975397 / 1.504120 (0.471277) | 1.807117 / 1.541195 (0.265922) | 1.908667 / 1.468490 (0.440177) | 0.525880 / 4.584777 (-4.058897) | 3.899639 / 3.745712 (0.153927) | 4.358664 / 5.269862 (-0.911198) | 2.586185 / 4.565676 (-1.979492) | 0.061967 / 0.424275 (-0.362308) | 0.007656 / 0.007607 (0.000049) | 0.504851 / 0.226044 (0.278807) | 5.004429 / 2.268929 (2.735500) | 2.515540 / 55.444624 (-52.929084) | 2.183142 / 6.876477 (-4.693334) | 2.369835 / 2.142072 (0.227763) | 0.623527 / 4.805227 (-4.181700) | 0.145105 / 6.500664 (-6.355559) | 0.063924 / 0.075469 (-0.011546) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.472661 / 1.841788 (-0.369126) | 21.781655 / 8.074308 (13.707347) | 15.628820 / 10.191392 (5.437428) | 0.182342 / 0.680424 (-0.498082) | 0.021139 / 0.534201 (-0.513062) | 0.438610 / 0.579283 (-0.140673) | 0.451343 / 0.434364 (0.016979) | 0.563320 / 0.540337 (0.022983) | 0.740976 / 1.386936 (-0.645960) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007492 / 0.011353 (-0.003861) | 0.004429 / 0.011008 (-0.006579) | 0.068517 / 0.038508 (0.030008) | 0.078533 / 0.023109 (0.055424) | 0.383530 / 0.275898 (0.107632) | 0.435061 / 0.323480 (0.111581) | 0.005955 / 0.007986 (-0.002030) | 0.003645 / 0.004328 (-0.000683) | 0.068792 / 0.004250 (0.064541) | 0.062452 / 0.037052 (0.025399) | 0.408768 / 0.258489 (0.150279) | 0.438538 / 0.293841 (0.144697) | 0.032038 / 0.128546 (-0.096508) | 0.009196 / 0.075646 (-0.066450) | 0.074495 / 0.419271 (-0.344776) | 0.051322 / 0.043533 (0.007789) | 0.394458 / 0.255139 (0.139319) | 0.424763 / 0.283200 (0.141564) | 0.024890 / 0.141683 (-0.116793) | 1.568322 / 1.452155 (0.116167) | 1.703903 / 1.492716 (0.211187) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.249630 / 0.018006 (0.231624) | 0.471412 / 0.000490 (0.470923) | 0.000435 / 0.000200 (0.000235) | 0.000060 / 0.000054 (0.000005) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.033054 / 0.037411 (-0.004358) | 0.100150 / 0.014526 (0.085624) | 0.101704 / 0.176557 (-0.074853) | 0.164031 / 0.737135 (-0.573104) | 0.112497 / 0.296338 (-0.183841) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.487150 / 0.215209 (0.271941) | 4.662335 / 2.077655 (2.584681) | 2.477285 / 1.504120 (0.973165) | 2.294033 / 1.541195 (0.752838) | 2.380143 / 1.468490 (0.911653) | 0.519182 / 4.584777 (-4.065595) | 3.983589 / 3.745712 (0.237877) | 3.669895 / 5.269862 (-1.599967) | 2.267147 / 4.565676 (-2.298529) | 0.063300 / 0.424275 (-0.360975) | 0.008839 / 0.007607 (0.001232) | 0.566766 / 0.226044 (0.340721) | 5.533475 / 2.268929 (3.264546) | 3.033412 / 55.444624 (-52.411212) | 2.701793 / 6.876477 (-4.174684) | 2.899444 / 2.142072 (0.757372) | 0.614236 / 4.805227 (-4.190991) | 0.139533 / 6.500664 (-6.361131) | 0.067537 / 0.075469 (-0.007932) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.505572 / 1.841788 (-0.336216) | 22.859062 / 8.074308 (14.784754) | 15.044777 / 10.191392 (4.853385) | 0.169153 / 0.680424 (-0.511271) | 0.021027 / 0.534201 (-0.513174) | 0.447979 / 0.579283 (-0.131304) | 0.460676 / 0.434364 (0.026312) | 0.506327 / 0.540337 (-0.034010) | 0.737880 / 1.386936 (-0.649057) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#db7180eb7e3ebf52b9d1f2c6629db6d92d8a29ba \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006118 / 0.011353 (-0.005235) | 0.003692 / 0.011008 (-0.007316) | 0.080606 / 0.038508 (0.042098) | 0.062014 / 0.023109 (0.038905) | 0.391886 / 0.275898 (0.115988) | 0.423978 / 0.323480 (0.100498) | 0.004968 / 0.007986 (-0.003017) | 0.002911 / 0.004328 (-0.001417) | 0.062867 / 0.004250 (0.058617) | 0.049493 / 0.037052 (0.012441) | 0.395656 / 0.258489 (0.137167) | 0.432406 / 0.293841 (0.138565) | 0.027242 / 0.128546 (-0.101304) | 0.007938 / 0.075646 (-0.067709) | 0.261703 / 0.419271 (-0.157569) | 0.045922 / 0.043533 (0.002389) | 0.391544 / 0.255139 (0.136405) | 0.417902 / 0.283200 (0.134703) | 0.021339 / 0.141683 (-0.120344) | 1.508391 / 1.452155 (0.056236) | 1.518970 / 1.492716 (0.026254) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.181159 / 0.018006 (0.163153) | 0.431402 / 0.000490 (0.430912) | 0.003849 / 0.000200 (0.003649) | 0.000068 / 0.000054 (0.000014) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.024498 / 0.037411 (-0.012914) | 0.072758 / 0.014526 (0.058233) | 0.084910 / 0.176557 (-0.091646) | 0.148314 / 0.737135 (-0.588821) | 0.085212 / 0.296338 (-0.211126) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.386693 / 0.215209 (0.171484) | 3.852652 / 2.077655 (1.774997) | 1.891758 / 1.504120 (0.387638) | 1.718793 / 1.541195 (0.177598) | 1.747595 / 1.468490 (0.279104) | 0.498593 / 4.584777 (-4.086184) | 3.057907 / 3.745712 (-0.687805) | 4.728449 / 5.269862 (-0.541413) | 2.966368 / 4.565676 (-1.599308) | 0.057538 / 0.424275 (-0.366737) | 0.006415 / 0.007607 (-0.001192) | 0.461652 / 0.226044 (0.235608) | 4.625944 / 2.268929 (2.357015) | 2.306938 / 55.444624 (-53.137686) | 1.974670 / 6.876477 (-4.901806) | 2.146327 / 2.142072 (0.004254) | 0.585033 / 4.805227 (-4.220195) | 0.125936 / 6.500664 (-6.374728) | 0.062365 / 0.075469 (-0.013104) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.263415 / 1.841788 (-0.578373) | 18.380651 / 8.074308 (10.306343) | 13.853410 / 10.191392 (3.662018) | 0.144674 / 0.680424 (-0.535749) | 0.016833 / 0.534201 (-0.517368) | 0.330812 / 0.579283 (-0.248471) | 0.357553 / 0.434364 (-0.076810) | 0.383529 / 0.540337 (-0.156809) | 0.558923 / 1.386936 (-0.828013) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006074 / 0.011353 (-0.005278) | 0.003655 / 0.011008 (-0.007353) | 0.062981 / 0.038508 (0.024473) | 0.061457 / 0.023109 (0.038348) | 0.366471 / 0.275898 (0.090573) | 0.408463 / 0.323480 (0.084983) | 0.004854 / 0.007986 (-0.003132) | 0.002916 / 0.004328 (-0.001412) | 0.062745 / 0.004250 (0.058494) | 0.051136 / 0.037052 (0.014084) | 0.380313 / 0.258489 (0.121824) | 0.416945 / 0.293841 (0.123104) | 0.027228 / 0.128546 (-0.101318) | 0.008031 / 0.075646 (-0.067615) | 0.067941 / 0.419271 (-0.351331) | 0.042886 / 0.043533 (-0.000647) | 0.370112 / 0.255139 (0.114973) | 0.397111 / 0.283200 (0.113911) | 0.023063 / 0.141683 (-0.118620) | 1.476955 / 1.452155 (0.024800) | 1.534783 / 1.492716 (0.042066) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.231462 / 0.018006 (0.213456) | 0.439559 / 0.000490 (0.439069) | 0.000364 / 0.000200 (0.000164) | 0.000056 / 0.000054 (0.000002) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.026925 / 0.037411 (-0.010486) | 0.079623 / 0.014526 (0.065097) | 0.088694 / 0.176557 (-0.087862) | 0.143163 / 0.737135 (-0.593972) | 0.089900 / 0.296338 (-0.206438) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.451429 / 0.215209 (0.236220) | 4.510723 / 2.077655 (2.433069) | 2.491853 / 1.504120 (0.987733) | 2.334670 / 1.541195 (0.793475) | 2.395519 / 1.468490 (0.927029) | 0.501369 / 4.584777 (-4.083408) | 3.014019 / 3.745712 (-0.731693) | 2.809199 / 5.269862 (-2.460662) | 1.842195 / 4.565676 (-2.723481) | 0.057675 / 0.424275 (-0.366600) | 0.006742 / 0.007607 (-0.000865) | 0.524402 / 0.226044 (0.298358) | 5.245296 / 2.268929 (2.976367) | 2.957990 / 55.444624 (-52.486634) | 2.649807 / 6.876477 (-4.226670) | 2.755909 / 2.142072 (0.613836) | 0.589610 / 4.805227 (-4.215617) | 0.125708 / 6.500664 (-6.374956) | 0.062237 / 0.075469 (-0.013232) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.362758 / 1.841788 (-0.479030) | 18.343694 / 8.074308 (10.269386) | 13.621521 / 10.191392 (3.430129) | 0.128866 / 0.680424 (-0.551558) | 0.016608 / 0.534201 (-0.517593) | 0.333071 / 0.579283 (-0.246212) | 0.341917 / 0.434364 (-0.092447) | 0.381075 / 0.540337 (-0.159263) | 0.512485 / 1.386936 (-0.874451) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#ab3f0165d4a2a8ab1aee1ebc4628893e17e27387 \"CML watermark\")\n", "I forgot to mention this in the initial comment, but only one public dataset (excluding gated) uses this method - `pg19`, which I just fixed.\r\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007838 / 0.011353 (-0.003515) | 0.004791 / 0.011008 (-0.006217) | 0.102596 / 0.038508 (0.064088) | 0.087678 / 0.023109 (0.064569) | 0.373858 / 0.275898 (0.097960) | 0.416643 / 0.323480 (0.093163) | 0.006147 / 0.007986 (-0.001839) | 0.003837 / 0.004328 (-0.000491) | 0.076706 / 0.004250 (0.072456) | 0.063449 / 0.037052 (0.026396) | 0.378392 / 0.258489 (0.119903) | 0.431768 / 0.293841 (0.137927) | 0.036648 / 0.128546 (-0.091898) | 0.010042 / 0.075646 (-0.065604) | 0.350277 / 0.419271 (-0.068995) | 0.062892 / 0.043533 (0.019359) | 0.376151 / 0.255139 (0.121012) | 0.420929 / 0.283200 (0.137729) | 0.027816 / 0.141683 (-0.113867) | 1.791607 / 1.452155 (0.339452) | 1.903045 / 1.492716 (0.410328) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.224688 / 0.018006 (0.206682) | 0.491941 / 0.000490 (0.491451) | 0.004482 / 0.000200 (0.004282) | 0.000102 / 0.000054 (0.000048) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.033495 / 0.037411 (-0.003917) | 0.099855 / 0.014526 (0.085329) | 0.114593 / 0.176557 (-0.061964) | 0.190947 / 0.737135 (-0.546189) | 0.116202 / 0.296338 (-0.180136) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.488581 / 0.215209 (0.273372) | 4.869531 / 2.077655 (2.791876) | 2.527920 / 1.504120 (1.023800) | 2.340021 / 1.541195 (0.798826) | 2.432661 / 1.468490 (0.964171) | 0.569646 / 4.584777 (-4.015131) | 4.392036 / 3.745712 (0.646324) | 4.987253 / 5.269862 (-0.282608) | 2.866604 / 4.565676 (-1.699073) | 0.067393 / 0.424275 (-0.356882) | 0.008759 / 0.007607 (0.001152) | 0.584327 / 0.226044 (0.358283) | 5.853000 / 2.268929 (3.584072) | 3.206721 / 55.444624 (-52.237904) | 2.730867 / 6.876477 (-4.145610) | 2.944814 / 2.142072 (0.802742) | 0.703336 / 4.805227 (-4.101891) | 0.173985 / 6.500664 (-6.326679) | 0.075333 / 0.075469 (-0.000137) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.519755 / 1.841788 (-0.322033) | 22.918038 / 8.074308 (14.843730) | 17.211160 / 10.191392 (7.019768) | 0.196941 / 0.680424 (-0.483483) | 0.021833 / 0.534201 (-0.512368) | 0.476835 / 0.579283 (-0.102448) | 0.464513 / 0.434364 (0.030149) | 0.559180 / 0.540337 (0.018843) | 0.748232 / 1.386936 (-0.638704) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008461 / 0.011353 (-0.002892) | 0.004799 / 0.011008 (-0.006209) | 0.077466 / 0.038508 (0.038958) | 0.103562 / 0.023109 (0.080453) | 0.453661 / 0.275898 (0.177763) | 0.531126 / 0.323480 (0.207647) | 0.006618 / 0.007986 (-0.001367) | 0.004048 / 0.004328 (-0.000280) | 0.075446 / 0.004250 (0.071196) | 0.072815 / 0.037052 (0.035762) | 0.497145 / 0.258489 (0.238656) | 0.533828 / 0.293841 (0.239987) | 0.037657 / 0.128546 (-0.090890) | 0.010139 / 0.075646 (-0.065507) | 0.083759 / 0.419271 (-0.335512) | 0.061401 / 0.043533 (0.017868) | 0.441785 / 0.255139 (0.186646) | 0.491678 / 0.283200 (0.208479) | 0.033100 / 0.141683 (-0.108583) | 1.753612 / 1.452155 (0.301458) | 1.838956 / 1.492716 (0.346240) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.395023 / 0.018006 (0.377017) | 0.509362 / 0.000490 (0.508872) | 0.060742 / 0.000200 (0.060542) | 0.000545 / 0.000054 (0.000491) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.039327 / 0.037411 (0.001916) | 0.117345 / 0.014526 (0.102819) | 0.124540 / 0.176557 (-0.052017) | 0.200743 / 0.737135 (-0.536392) | 0.126750 / 0.296338 (-0.169589) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.488597 / 0.215209 (0.273388) | 4.875534 / 2.077655 (2.797880) | 2.714364 / 1.504120 (1.210244) | 2.603707 / 1.541195 (1.062513) | 2.733547 / 1.468490 (1.265057) | 0.575183 / 4.584777 (-4.009594) | 4.126096 / 3.745712 (0.380384) | 3.853803 / 5.269862 (-1.416058) | 2.395160 / 4.565676 (-2.170516) | 0.067391 / 0.424275 (-0.356884) | 0.009108 / 0.007607 (0.001501) | 0.585865 / 0.226044 (0.359820) | 5.864878 / 2.268929 (3.595949) | 3.153369 / 55.444624 (-52.291256) | 2.759064 / 6.876477 (-4.117413) | 3.032489 / 2.142072 (0.890416) | 0.702615 / 4.805227 (-4.102613) | 0.160034 / 6.500664 (-6.340630) | 0.077294 / 0.075469 (0.001825) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.595069 / 1.841788 (-0.246719) | 23.231191 / 8.074308 (15.156883) | 16.365137 / 10.191392 (6.173745) | 0.188360 / 0.680424 (-0.492063) | 0.021704 / 0.534201 (-0.512497) | 0.469996 / 0.579283 (-0.109287) | 0.463255 / 0.434364 (0.028891) | 0.560506 / 0.540337 (0.020169) | 0.751006 / 1.386936 (-0.635930) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#50d9a70c666ff46ff9974c47cedc77d9f88d6471 \"CML watermark\")\n", "@mariosasko How would you stream a split zip file with just [download_and_extract or download](https://github.com/huggingface/datasets/blob/main/src/datasets/download/download_manager.py#L353)? With download_custom, it is possible to combine a split zip file. Perhaps add an option in [download](https://huggingface.co/docs/datasets/v2.2.1/en/package_reference/builder_classes#datasets.DownloadManager.download) to combine split zips. This issue may apply to other multipart file-types.\r\n\r\nEdit - \r\nIn case asked why I use split zips, I haven't been able to upload zips larger than 50 GB to HuggingFace.\r\n\r\nEdit2 -\r\nIssue is [tackled](https://discuss.huggingface.co/t/download-custom-method-of-streamingdownloadmanager-not-implemented/28298/8) for split zips. " ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007873 / 0.011353 (-0.003480) | 0.004585 / 0.011008 (-0.006423) | 0.101622 / 0.038508 (0.063114) | 0.092459 / 0.023109 (0.069350) | 0.365157 / 0.275898 (0.089259) | 0.405943 / 0.323480 (0.082463) | 0.006229 / 0.007986 (-0.001756) | 0.003811 / 0.004328 (-0.000518) | 0.073831 / 0.004250 (0.069580) | 0.065097 / 0.037052 (0.028045) | 0.378912 / 0.258489 (0.120423) | 0.422174 / 0.293841 (0.128333) | 0.036244 / 0.128546 (-0.092302) | 0.009677 / 0.075646 (-0.065970) | 0.345164 / 0.419271 (-0.074107) | 0.061632 / 0.043533 (0.018099) | 0.370350 / 0.255139 (0.115211) | 0.418245 / 0.283200 (0.135046) | 0.027272 / 0.141683 (-0.114411) | 1.774047 / 1.452155 (0.321892) | 1.880278 / 1.492716 (0.387562) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.217238 / 0.018006 (0.199231) | 0.489560 / 0.000490 (0.489071) | 0.004013 / 0.000200 (0.003813) | 0.000092 / 0.000054 (0.000038) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.034139 / 0.037411 (-0.003272) | 0.103831 / 0.014526 (0.089305) | 0.114353 / 0.176557 (-0.062204) | 0.182034 / 0.737135 (-0.555102) | 0.116171 / 0.296338 (-0.180168) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.448658 / 0.215209 (0.233449) | 4.520849 / 2.077655 (2.443195) | 2.216121 / 1.504120 (0.712001) | 2.034596 / 1.541195 (0.493402) | 2.193216 / 1.468490 (0.724725) | 0.568166 / 4.584777 (-4.016611) | 4.133587 / 3.745712 (0.387875) | 4.641117 / 5.269862 (-0.628744) | 2.772913 / 4.565676 (-1.792764) | 0.067664 / 0.424275 (-0.356611) | 0.008719 / 0.007607 (0.001112) | 0.547723 / 0.226044 (0.321678) | 5.438325 / 2.268929 (3.169397) | 2.877667 / 55.444624 (-52.566958) | 2.477503 / 6.876477 (-4.398974) | 2.688209 / 2.142072 (0.546136) | 0.692593 / 4.805227 (-4.112634) | 0.154549 / 6.500664 (-6.346115) | 0.073286 / 0.075469 (-0.002183) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.610927 / 1.841788 (-0.230861) | 23.413345 / 8.074308 (15.339037) | 16.851819 / 10.191392 (6.660427) | 0.170076 / 0.680424 (-0.510348) | 0.021428 / 0.534201 (-0.512773) | 0.468184 / 0.579283 (-0.111099) | 0.491820 / 0.434364 (0.057456) | 0.553453 / 0.540337 (0.013115) | 0.762303 / 1.386936 (-0.624633) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008033 / 0.011353 (-0.003320) | 0.004638 / 0.011008 (-0.006370) | 0.077044 / 0.038508 (0.038536) | 0.096529 / 0.023109 (0.073420) | 0.428735 / 0.275898 (0.152837) | 0.477303 / 0.323480 (0.153823) | 0.006040 / 0.007986 (-0.001946) | 0.003808 / 0.004328 (-0.000521) | 0.076042 / 0.004250 (0.071791) | 0.066123 / 0.037052 (0.029071) | 0.445482 / 0.258489 (0.186993) | 0.481350 / 0.293841 (0.187509) | 0.036951 / 0.128546 (-0.091595) | 0.009944 / 0.075646 (-0.065703) | 0.082731 / 0.419271 (-0.336541) | 0.057490 / 0.043533 (0.013958) | 0.432668 / 0.255139 (0.177529) | 0.461146 / 0.283200 (0.177947) | 0.027330 / 0.141683 (-0.114353) | 1.784195 / 1.452155 (0.332040) | 1.834776 / 1.492716 (0.342059) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.254104 / 0.018006 (0.236097) | 0.475810 / 0.000490 (0.475321) | 0.000459 / 0.000200 (0.000259) | 0.000069 / 0.000054 (0.000014) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.037058 / 0.037411 (-0.000353) | 0.114962 / 0.014526 (0.100436) | 0.123725 / 0.176557 (-0.052832) | 0.188885 / 0.737135 (-0.548251) | 0.125668 / 0.296338 (-0.170670) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.492627 / 0.215209 (0.277418) | 4.900625 / 2.077655 (2.822970) | 2.546349 / 1.504120 (1.042229) | 2.360350 / 1.541195 (0.819155) | 2.477975 / 1.468490 (1.009485) | 0.574042 / 4.584777 (-4.010735) | 4.408414 / 3.745712 (0.662702) | 3.836640 / 5.269862 (-1.433222) | 2.438450 / 4.565676 (-2.127227) | 0.067706 / 0.424275 (-0.356569) | 0.009165 / 0.007607 (0.001558) | 0.580313 / 0.226044 (0.354269) | 5.798211 / 2.268929 (3.529283) | 3.098480 / 55.444624 (-52.346145) | 2.740180 / 6.876477 (-4.136296) | 2.984548 / 2.142072 (0.842476) | 0.702550 / 4.805227 (-4.102677) | 0.158248 / 6.500664 (-6.342416) | 0.073999 / 0.075469 (-0.001470) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.636034 / 1.841788 (-0.205754) | 24.068000 / 8.074308 (15.993692) | 17.123987 / 10.191392 (6.932595) | 0.210101 / 0.680424 (-0.470323) | 0.022555 / 0.534201 (-0.511646) | 0.509354 / 0.579283 (-0.069929) | 0.540739 / 0.434364 (0.106375) | 0.546048 / 0.540337 (0.005711) | 0.719155 / 1.386936 (-0.667781) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#40530382ba98f54445de8820943b1236d4a4704f \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007342 / 0.011353 (-0.004010) | 0.004579 / 0.011008 (-0.006429) | 0.087050 / 0.038508 (0.048542) | 0.089001 / 0.023109 (0.065892) | 0.307319 / 0.275898 (0.031421) | 0.377573 / 0.323480 (0.054093) | 0.006472 / 0.007986 (-0.001514) | 0.004287 / 0.004328 (-0.000041) | 0.067226 / 0.004250 (0.062976) | 0.063147 / 0.037052 (0.026094) | 0.314541 / 0.258489 (0.056052) | 0.369919 / 0.293841 (0.076078) | 0.031283 / 0.128546 (-0.097263) | 0.009175 / 0.075646 (-0.066471) | 0.289211 / 0.419271 (-0.130061) | 0.053444 / 0.043533 (0.009911) | 0.307308 / 0.255139 (0.052169) | 0.346221 / 0.283200 (0.063021) | 0.027948 / 0.141683 (-0.113735) | 1.475177 / 1.452155 (0.023022) | 1.575971 / 1.492716 (0.083255) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.291092 / 0.018006 (0.273086) | 0.696951 / 0.000490 (0.696461) | 0.005211 / 0.000200 (0.005011) | 0.000094 / 0.000054 (0.000040) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031787 / 0.037411 (-0.005625) | 0.084382 / 0.014526 (0.069857) | 0.106474 / 0.176557 (-0.070083) | 0.161472 / 0.737135 (-0.575663) | 0.108650 / 0.296338 (-0.187688) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.379656 / 0.215209 (0.164447) | 3.784072 / 2.077655 (1.706417) | 1.826580 / 1.504120 (0.322460) | 1.654916 / 1.541195 (0.113721) | 1.730698 / 1.468490 (0.262208) | 0.478003 / 4.584777 (-4.106774) | 3.564920 / 3.745712 (-0.180792) | 5.824873 / 5.269862 (0.555012) | 3.454563 / 4.565676 (-1.111113) | 0.056646 / 0.424275 (-0.367629) | 0.007410 / 0.007607 (-0.000197) | 0.461781 / 0.226044 (0.235737) | 4.600928 / 2.268929 (2.331999) | 2.351887 / 55.444624 (-53.092738) | 1.986470 / 6.876477 (-4.890007) | 2.311623 / 2.142072 (0.169551) | 0.571247 / 4.805227 (-4.233980) | 0.132191 / 6.500664 (-6.368473) | 0.059943 / 0.075469 (-0.015526) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.253142 / 1.841788 (-0.588646) | 21.294983 / 8.074308 (13.220675) | 14.522429 / 10.191392 (4.331037) | 0.166663 / 0.680424 (-0.513761) | 0.019694 / 0.534201 (-0.514507) | 0.395908 / 0.579283 (-0.183375) | 0.413283 / 0.434364 (-0.021081) | 0.457739 / 0.540337 (-0.082599) | 0.664361 / 1.386936 (-0.722575) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007228 / 0.011353 (-0.004124) | 0.004941 / 0.011008 (-0.006067) | 0.065381 / 0.038508 (0.026873) | 0.090790 / 0.023109 (0.067681) | 0.391315 / 0.275898 (0.115417) | 0.416518 / 0.323480 (0.093038) | 0.007015 / 0.007986 (-0.000970) | 0.004417 / 0.004328 (0.000089) | 0.067235 / 0.004250 (0.062985) | 0.068092 / 0.037052 (0.031039) | 0.403031 / 0.258489 (0.144542) | 0.434013 / 0.293841 (0.140172) | 0.032004 / 0.128546 (-0.096542) | 0.009242 / 0.075646 (-0.066404) | 0.071222 / 0.419271 (-0.348050) | 0.054207 / 0.043533 (0.010674) | 0.386198 / 0.255139 (0.131059) | 0.404350 / 0.283200 (0.121150) | 0.036284 / 0.141683 (-0.105399) | 1.488814 / 1.452155 (0.036660) | 1.587785 / 1.492716 (0.095069) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.313760 / 0.018006 (0.295754) | 0.747778 / 0.000490 (0.747289) | 0.003307 / 0.000200 (0.003107) | 0.000113 / 0.000054 (0.000058) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.034321 / 0.037411 (-0.003090) | 0.088266 / 0.014526 (0.073740) | 0.112874 / 0.176557 (-0.063682) | 0.171554 / 0.737135 (-0.565581) | 0.111356 / 0.296338 (-0.184982) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.422624 / 0.215209 (0.207415) | 4.212079 / 2.077655 (2.134425) | 2.242742 / 1.504120 (0.738622) | 2.072555 / 1.541195 (0.531360) | 2.192648 / 1.468490 (0.724158) | 0.488214 / 4.584777 (-4.096563) | 3.597013 / 3.745712 (-0.148699) | 3.477556 / 5.269862 (-1.792305) | 2.184340 / 4.565676 (-2.381337) | 0.057170 / 0.424275 (-0.367105) | 0.007772 / 0.007607 (0.000165) | 0.499455 / 0.226044 (0.273411) | 4.988953 / 2.268929 (2.720024) | 2.797894 / 55.444624 (-52.646731) | 2.402215 / 6.876477 (-4.474262) | 2.725069 / 2.142072 (0.582997) | 0.596213 / 4.805227 (-4.209014) | 0.136564 / 6.500664 (-6.364100) | 0.061799 / 0.075469 (-0.013670) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.360739 / 1.841788 (-0.481049) | 21.846457 / 8.074308 (13.772149) | 14.568842 / 10.191392 (4.377450) | 0.168980 / 0.680424 (-0.511444) | 0.018795 / 0.534201 (-0.515406) | 0.396173 / 0.579283 (-0.183110) | 0.418651 / 0.434364 (-0.015713) | 0.480042 / 0.540337 (-0.060295) | 0.650803 / 1.386936 (-0.736133) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#b7d460304487d4daab0a64ca0ca707e896367ca1 \"CML watermark\")\n" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006640 / 0.011353 (-0.004713) | 0.004077 / 0.011008 (-0.006931) | 0.084905 / 0.038508 (0.046397) | 0.074004 / 0.023109 (0.050895) | 0.315968 / 0.275898 (0.040070) | 0.351594 / 0.323480 (0.028114) | 0.005623 / 0.007986 (-0.002362) | 0.003476 / 0.004328 (-0.000852) | 0.065089 / 0.004250 (0.060839) | 0.054683 / 0.037052 (0.017631) | 0.314983 / 0.258489 (0.056494) | 0.371776 / 0.293841 (0.077935) | 0.031727 / 0.128546 (-0.096819) | 0.008786 / 0.075646 (-0.066860) | 0.289905 / 0.419271 (-0.129367) | 0.053340 / 0.043533 (0.009807) | 0.311802 / 0.255139 (0.056663) | 0.351927 / 0.283200 (0.068727) | 0.024453 / 0.141683 (-0.117229) | 1.491727 / 1.452155 (0.039572) | 1.585027 / 1.492716 (0.092310) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.238757 / 0.018006 (0.220750) | 0.557691 / 0.000490 (0.557202) | 0.005158 / 0.000200 (0.004958) | 0.000204 / 0.000054 (0.000149) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.028435 / 0.037411 (-0.008977) | 0.082219 / 0.014526 (0.067693) | 0.096932 / 0.176557 (-0.079625) | 0.153802 / 0.737135 (-0.583333) | 0.098338 / 0.296338 (-0.198001) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.383448 / 0.215209 (0.168238) | 3.816074 / 2.077655 (1.738420) | 1.835111 / 1.504120 (0.330991) | 1.662326 / 1.541195 (0.121131) | 1.720202 / 1.468490 (0.251712) | 0.483107 / 4.584777 (-4.101669) | 3.648528 / 3.745712 (-0.097184) | 4.020929 / 5.269862 (-1.248932) | 2.433141 / 4.565676 (-2.132536) | 0.057081 / 0.424275 (-0.367194) | 0.007303 / 0.007607 (-0.000304) | 0.461366 / 0.226044 (0.235322) | 4.609090 / 2.268929 (2.340162) | 2.355940 / 55.444624 (-53.088684) | 1.989833 / 6.876477 (-4.886644) | 2.201451 / 2.142072 (0.059378) | 0.586156 / 4.805227 (-4.219071) | 0.133486 / 6.500664 (-6.367178) | 0.060062 / 0.075469 (-0.015407) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.247845 / 1.841788 (-0.593942) | 19.624252 / 8.074308 (11.549944) | 14.305975 / 10.191392 (4.114583) | 0.168687 / 0.680424 (-0.511737) | 0.018075 / 0.534201 (-0.516126) | 0.393859 / 0.579283 (-0.185424) | 0.407272 / 0.434364 (-0.027092) | 0.463760 / 0.540337 (-0.076578) | 0.629930 / 1.386936 (-0.757006) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006760 / 0.011353 (-0.004593) | 0.004345 / 0.011008 (-0.006663) | 0.064379 / 0.038508 (0.025871) | 0.078295 / 0.023109 (0.055186) | 0.364532 / 0.275898 (0.088633) | 0.395852 / 0.323480 (0.072372) | 0.005659 / 0.007986 (-0.002327) | 0.003515 / 0.004328 (-0.000813) | 0.065030 / 0.004250 (0.060780) | 0.059950 / 0.037052 (0.022898) | 0.375420 / 0.258489 (0.116931) | 0.411579 / 0.293841 (0.117738) | 0.031575 / 0.128546 (-0.096972) | 0.008737 / 0.075646 (-0.066910) | 0.070350 / 0.419271 (-0.348922) | 0.050607 / 0.043533 (0.007075) | 0.359785 / 0.255139 (0.104646) | 0.382638 / 0.283200 (0.099438) | 0.025533 / 0.141683 (-0.116150) | 1.564379 / 1.452155 (0.112225) | 1.620642 / 1.492716 (0.127925) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.212779 / 0.018006 (0.194773) | 0.563827 / 0.000490 (0.563337) | 0.003767 / 0.000200 (0.003567) | 0.000103 / 0.000054 (0.000049) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030275 / 0.037411 (-0.007136) | 0.088108 / 0.014526 (0.073582) | 0.102454 / 0.176557 (-0.074103) | 0.156107 / 0.737135 (-0.581028) | 0.103961 / 0.296338 (-0.192378) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.421395 / 0.215209 (0.206186) | 4.204935 / 2.077655 (2.127280) | 2.144929 / 1.504120 (0.640809) | 1.999341 / 1.541195 (0.458147) | 2.066966 / 1.468490 (0.598476) | 0.486135 / 4.584777 (-4.098642) | 3.628139 / 3.745712 (-0.117573) | 5.652683 / 5.269862 (0.382821) | 3.216721 / 4.565676 (-1.348956) | 0.057513 / 0.424275 (-0.366762) | 0.007553 / 0.007607 (-0.000055) | 0.494470 / 0.226044 (0.268426) | 4.949343 / 2.268929 (2.680414) | 2.654222 / 55.444624 (-52.790402) | 2.322257 / 6.876477 (-4.554220) | 2.555633 / 2.142072 (0.413561) | 0.588355 / 4.805227 (-4.216872) | 0.134481 / 6.500664 (-6.366183) | 0.062415 / 0.075469 (-0.013054) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.377578 / 1.841788 (-0.464209) | 19.805201 / 8.074308 (11.730893) | 14.128536 / 10.191392 (3.937144) | 0.164343 / 0.680424 (-0.516081) | 0.018553 / 0.534201 (-0.515648) | 0.398191 / 0.579283 (-0.181093) | 0.414268 / 0.434364 (-0.020096) | 0.462270 / 0.540337 (-0.078068) | 0.608497 / 1.386936 (-0.778439) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#3af05ba487f361fae90a4c80af72de5c4ed70162 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006966 / 0.011353 (-0.004387) | 0.004339 / 0.011008 (-0.006669) | 0.086682 / 0.038508 (0.048174) | 0.086143 / 0.023109 (0.063034) | 0.316106 / 0.275898 (0.040208) | 0.351422 / 0.323480 (0.027942) | 0.005916 / 0.007986 (-0.002069) | 0.003630 / 0.004328 (-0.000698) | 0.066980 / 0.004250 (0.062730) | 0.060031 / 0.037052 (0.022979) | 0.317487 / 0.258489 (0.058998) | 0.356280 / 0.293841 (0.062439) | 0.031816 / 0.128546 (-0.096730) | 0.008797 / 0.075646 (-0.066849) | 0.289848 / 0.419271 (-0.129424) | 0.055431 / 0.043533 (0.011898) | 0.318881 / 0.255139 (0.063742) | 0.332315 / 0.283200 (0.049116) | 0.025946 / 0.141683 (-0.115737) | 1.472904 / 1.452155 (0.020749) | 1.577973 / 1.492716 (0.085257) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.239056 / 0.018006 (0.221050) | 0.565406 / 0.000490 (0.564917) | 0.003606 / 0.000200 (0.003406) | 0.000080 / 0.000054 (0.000025) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029771 / 0.037411 (-0.007640) | 0.085534 / 0.014526 (0.071008) | 0.107008 / 0.176557 (-0.069548) | 0.631583 / 0.737135 (-0.105552) | 0.104210 / 0.296338 (-0.192128) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.390675 / 0.215209 (0.175466) | 3.898746 / 2.077655 (1.821091) | 1.933048 / 1.504120 (0.428928) | 1.792162 / 1.541195 (0.250967) | 1.958045 / 1.468490 (0.489555) | 0.488632 / 4.584777 (-4.096144) | 3.696306 / 3.745712 (-0.049406) | 3.454600 / 5.269862 (-1.815262) | 2.176292 / 4.565676 (-2.389385) | 0.057617 / 0.424275 (-0.366658) | 0.007603 / 0.007607 (-0.000004) | 0.467843 / 0.226044 (0.241798) | 4.672928 / 2.268929 (2.404000) | 2.441096 / 55.444624 (-53.003529) | 2.133506 / 6.876477 (-4.742970) | 2.431167 / 2.142072 (0.289095) | 0.588567 / 4.805227 (-4.216661) | 0.136070 / 6.500664 (-6.364594) | 0.063395 / 0.075469 (-0.012074) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.255003 / 1.841788 (-0.586784) | 20.587656 / 8.074308 (12.513348) | 15.147817 / 10.191392 (4.956425) | 0.152039 / 0.680424 (-0.528384) | 0.018815 / 0.534201 (-0.515386) | 0.397458 / 0.579283 (-0.181825) | 0.431433 / 0.434364 (-0.002931) | 0.487890 / 0.540337 (-0.052448) | 0.675367 / 1.386936 (-0.711569) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007209 / 0.011353 (-0.004144) | 0.004372 / 0.011008 (-0.006636) | 0.066288 / 0.038508 (0.027780) | 0.091776 / 0.023109 (0.068667) | 0.390724 / 0.275898 (0.114826) | 0.434711 / 0.323480 (0.111231) | 0.005790 / 0.007986 (-0.002196) | 0.003562 / 0.004328 (-0.000767) | 0.066155 / 0.004250 (0.061904) | 0.062459 / 0.037052 (0.025406) | 0.406622 / 0.258489 (0.148133) | 0.433976 / 0.293841 (0.140135) | 0.032590 / 0.128546 (-0.095957) | 0.008856 / 0.075646 (-0.066790) | 0.072327 / 0.419271 (-0.346945) | 0.049958 / 0.043533 (0.006426) | 0.400164 / 0.255139 (0.145025) | 0.413339 / 0.283200 (0.130139) | 0.025283 / 0.141683 (-0.116399) | 1.487668 / 1.452155 (0.035514) | 1.537679 / 1.492716 (0.044962) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.257814 / 0.018006 (0.239808) | 0.571741 / 0.000490 (0.571251) | 0.000412 / 0.000200 (0.000212) | 0.000056 / 0.000054 (0.000002) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.033893 / 0.037411 (-0.003518) | 0.094533 / 0.014526 (0.080008) | 0.105876 / 0.176557 (-0.070680) | 0.158675 / 0.737135 (-0.578460) | 0.107790 / 0.296338 (-0.188548) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.425796 / 0.215209 (0.210587) | 4.229159 / 2.077655 (2.151505) | 2.239613 / 1.504120 (0.735493) | 2.073830 / 1.541195 (0.532635) | 2.185508 / 1.468490 (0.717018) | 0.483984 / 4.584777 (-4.100793) | 3.645575 / 3.745712 (-0.100137) | 3.454767 / 5.269862 (-1.815095) | 2.141387 / 4.565676 (-2.424290) | 0.057570 / 0.424275 (-0.366705) | 0.007901 / 0.007607 (0.000294) | 0.501160 / 0.226044 (0.275116) | 5.012283 / 2.268929 (2.743355) | 2.701267 / 55.444624 (-52.743357) | 2.465409 / 6.876477 (-4.411068) | 2.696812 / 2.142072 (0.554739) | 0.587160 / 4.805227 (-4.218067) | 0.134175 / 6.500664 (-6.366489) | 0.062028 / 0.075469 (-0.013441) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.345632 / 1.841788 (-0.496155) | 21.077279 / 8.074308 (13.002971) | 14.700826 / 10.191392 (4.509434) | 0.156191 / 0.680424 (-0.524233) | 0.018991 / 0.534201 (-0.515210) | 0.400413 / 0.579283 (-0.178870) | 0.420597 / 0.434364 (-0.013767) | 0.486534 / 0.540337 (-0.053804) | 0.646606 / 1.386936 (-0.740330) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#5bb8fabb135ca8adf47151ad3de050e3a258ccab \"CML watermark\")\n" ]

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[ "Thanks for reporting. We've merged a PR with a fix." ]

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[ "We could add a \"threads\" parallel backend to `datasets.parallel.parallel_backend` to support downloading with threads but note that `download_and_extract` also decompresses archives, and this is a CPU-intensive task, which is not ideal for (Python) threads (good for IO-intensive tasks).", "> We could add a \"threads\" parallel backend to `datasets.parallel.parallel_backend` to support downloading with threads but note that `download_and_extract` also decompresses archives, and this is a CPU-intensive task, which is not ideal for (Python) threads (good for IO-intensive tasks).\r\n\r\nGreat! Download takes more time than extract, multiple threads can download in parallel, which can speed up a lot." ]

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[ "Thanks for reporting! A PR with a fix has just been merged." ]

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[ { "id": 1935892871, "node_id": "MDU6TGFiZWwxOTM1ODkyODcx", "url": "https://api.github.com/repos/huggingface/datasets/labels/enhancement", "name": "enhancement", "color": "a2eeef", "default": true, "description": "New feature or request" } ]

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[ "Hi @mariosasko unless someone's already working on it, I guess I can tackle it!", "Hi! Sure, feel free to tackle this.", "#self-assign", "I'm assuming this should just cover `to_csv`, `to_parquet`, and `to_json`, right? As `to_list` and `to_dict` just return Python objects, `to_pandas` returns a `pandas.DataFrame` and `to_sql` just inserts into a SQL DB, is that right?", "Fixed by #6096. " ]

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[ "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006031 / 0.011353 (-0.005322) | 0.003579 / 0.011008 (-0.007429) | 0.080862 / 0.038508 (0.042354) | 0.056660 / 0.023109 (0.033551) | 0.388285 / 0.275898 (0.112387) | 0.422270 / 0.323480 (0.098790) | 0.004651 / 0.007986 (-0.003335) | 0.002895 / 0.004328 (-0.001433) | 0.062767 / 0.004250 (0.058517) | 0.046491 / 0.037052 (0.009438) | 0.389918 / 0.258489 (0.131428) | 0.434650 / 0.293841 (0.140809) | 0.027265 / 0.128546 (-0.101281) | 0.007946 / 0.075646 (-0.067701) | 0.261207 / 0.419271 (-0.158065) | 0.045057 / 0.043533 (0.001525) | 0.391977 / 0.255139 (0.136838) | 0.418525 / 0.283200 (0.135326) | 0.020705 / 0.141683 (-0.120978) | 1.459271 / 1.452155 (0.007116) | 1.516935 / 1.492716 (0.024218) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.174659 / 0.018006 (0.156653) | 0.429627 / 0.000490 (0.429137) | 0.003714 / 0.000200 (0.003514) | 0.000070 / 0.000054 (0.000016) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023255 / 0.037411 (-0.014156) | 0.073463 / 0.014526 (0.058937) | 0.083000 / 0.176557 (-0.093557) | 0.146704 / 0.737135 (-0.590431) | 0.084419 / 0.296338 (-0.211919) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.392222 / 0.215209 (0.177013) | 3.902620 / 2.077655 (1.824966) | 1.903056 / 1.504120 (0.398936) | 1.753423 / 1.541195 (0.212228) | 1.874547 / 1.468490 (0.406057) | 0.495947 / 4.584777 (-4.088829) | 3.084680 / 3.745712 (-0.661032) | 4.235064 / 5.269862 (-1.034797) | 2.626840 / 4.565676 (-1.938837) | 0.057273 / 0.424275 (-0.367002) | 0.006457 / 0.007607 (-0.001150) | 0.466018 / 0.226044 (0.239974) | 4.648264 / 2.268929 (2.379335) | 2.520293 / 55.444624 (-52.924331) | 2.339393 / 6.876477 (-4.537083) | 2.538848 / 2.142072 (0.396775) | 0.592018 / 4.805227 (-4.213210) | 0.125041 / 6.500664 (-6.375623) | 0.061038 / 0.075469 (-0.014431) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.244285 / 1.841788 (-0.597503) | 18.411576 / 8.074308 (10.337268) | 13.850100 / 10.191392 (3.658708) | 0.131904 / 0.680424 (-0.548520) | 0.016824 / 0.534201 (-0.517377) | 0.328931 / 0.579283 (-0.250352) | 0.364801 / 0.434364 (-0.069563) | 0.376298 / 0.540337 (-0.164039) | 0.525045 / 1.386936 (-0.861891) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006059 / 0.011353 (-0.005294) | 0.003693 / 0.011008 (-0.007315) | 0.062982 / 0.038508 (0.024473) | 0.062155 / 0.023109 (0.039046) | 0.389467 / 0.275898 (0.113568) | 0.437046 / 0.323480 (0.113566) | 0.004823 / 0.007986 (-0.003163) | 0.002935 / 0.004328 (-0.001393) | 0.062679 / 0.004250 (0.058429) | 0.049676 / 0.037052 (0.012623) | 0.418054 / 0.258489 (0.159565) | 0.442467 / 0.293841 (0.148626) | 0.027652 / 0.128546 (-0.100895) | 0.008146 / 0.075646 (-0.067501) | 0.069414 / 0.419271 (-0.349858) | 0.042884 / 0.043533 (-0.000649) | 0.387167 / 0.255139 (0.132028) | 0.418684 / 0.283200 (0.135484) | 0.022419 / 0.141683 (-0.119264) | 1.460606 / 1.452155 (0.008451) | 1.514204 / 1.492716 (0.021487) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.200523 / 0.018006 (0.182517) | 0.415970 / 0.000490 (0.415481) | 0.003202 / 0.000200 (0.003002) | 0.000069 / 0.000054 (0.000014) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025836 / 0.037411 (-0.011575) | 0.078859 / 0.014526 (0.064333) | 0.088523 / 0.176557 (-0.088034) | 0.141572 / 0.737135 (-0.595563) | 0.090258 / 0.296338 (-0.206080) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.416548 / 0.215209 (0.201339) | 4.155278 / 2.077655 (2.077623) | 2.126683 / 1.504120 (0.622563) | 1.963762 / 1.541195 (0.422568) | 2.029018 / 1.468490 (0.560528) | 0.499005 / 4.584777 (-4.085772) | 3.063503 / 3.745712 (-0.682209) | 4.250800 / 5.269862 (-1.019061) | 2.642634 / 4.565676 (-1.923043) | 0.057815 / 0.424275 (-0.366460) | 0.006784 / 0.007607 (-0.000823) | 0.492481 / 0.226044 (0.266437) | 4.914306 / 2.268929 (2.645377) | 2.601582 / 55.444624 (-52.843042) | 2.337863 / 6.876477 (-4.538614) | 2.462854 / 2.142072 (0.320782) | 0.593738 / 4.805227 (-4.211489) | 0.127030 / 6.500664 (-6.373634) | 0.064206 / 0.075469 (-0.011263) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.326919 / 1.841788 (-0.514868) | 18.728929 / 8.074308 (10.654621) | 13.903681 / 10.191392 (3.712289) | 0.162670 / 0.680424 (-0.517754) | 0.016913 / 0.534201 (-0.517288) | 0.337504 / 0.579283 (-0.241779) | 0.339786 / 0.434364 (-0.094577) | 0.384955 / 0.540337 (-0.155383) | 0.514358 / 1.386936 (-0.872578) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#c5c31b492c45e01c6f4593ada2b84517a75a5c7c \"CML watermark\")\n", "The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6085). All of your documentation changes will be reflected on that endpoint.", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007610 / 0.011353 (-0.003743) | 0.004616 / 0.011008 (-0.006392) | 0.100330 / 0.038508 (0.061821) | 0.084450 / 0.023109 (0.061341) | 0.386610 / 0.275898 (0.110712) | 0.418479 / 0.323480 (0.094999) | 0.006085 / 0.007986 (-0.001900) | 0.003800 / 0.004328 (-0.000529) | 0.076248 / 0.004250 (0.071997) | 0.065175 / 0.037052 (0.028122) | 0.387154 / 0.258489 (0.128665) | 0.425484 / 0.293841 (0.131643) | 0.035946 / 0.128546 (-0.092601) | 0.009901 / 0.075646 (-0.065745) | 0.343015 / 0.419271 (-0.076256) | 0.060965 / 0.043533 (0.017432) | 0.390585 / 0.255139 (0.135446) | 0.405873 / 0.283200 (0.122673) | 0.026929 / 0.141683 (-0.114754) | 1.767916 / 1.452155 (0.315761) | 1.893431 / 1.492716 (0.400715) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.237888 / 0.018006 (0.219882) | 0.503949 / 0.000490 (0.503459) | 0.004769 / 0.000200 (0.004570) | 0.000088 / 0.000054 (0.000033) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031553 / 0.037411 (-0.005859) | 0.096950 / 0.014526 (0.082424) | 0.110374 / 0.176557 (-0.066183) | 0.176754 / 0.737135 (-0.560381) | 0.111703 / 0.296338 (-0.184635) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.449232 / 0.215209 (0.234023) | 4.510247 / 2.077655 (2.432592) | 2.188547 / 1.504120 (0.684427) | 2.007530 / 1.541195 (0.466335) | 2.095650 / 1.468490 (0.627160) | 0.563262 / 4.584777 (-4.021515) | 4.062412 / 3.745712 (0.316700) | 6.338350 / 5.269862 (1.068489) | 3.844669 / 4.565676 (-0.721008) | 0.064517 / 0.424275 (-0.359758) | 0.008536 / 0.007607 (0.000929) | 0.553872 / 0.226044 (0.327828) | 5.530311 / 2.268929 (3.261383) | 2.835109 / 55.444624 (-52.609516) | 2.493900 / 6.876477 (-4.382577) | 2.728412 / 2.142072 (0.586340) | 0.680161 / 4.805227 (-4.125066) | 0.155831 / 6.500664 (-6.344833) | 0.070359 / 0.075469 (-0.005110) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.504852 / 1.841788 (-0.336936) | 22.806335 / 8.074308 (14.732027) | 16.598386 / 10.191392 (6.406994) | 0.207857 / 0.680424 (-0.472566) | 0.021425 / 0.534201 (-0.512776) | 0.474069 / 0.579283 (-0.105214) | 0.472263 / 0.434364 (0.037899) | 0.542195 / 0.540337 (0.001858) | 0.782871 / 1.386936 (-0.604065) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007443 / 0.011353 (-0.003910) | 0.004465 / 0.011008 (-0.006544) | 0.076268 / 0.038508 (0.037759) | 0.086607 / 0.023109 (0.063498) | 0.443295 / 0.275898 (0.167397) | 0.472819 / 0.323480 (0.149339) | 0.005841 / 0.007986 (-0.002144) | 0.003727 / 0.004328 (-0.000602) | 0.076015 / 0.004250 (0.071765) | 0.063188 / 0.037052 (0.026136) | 0.450555 / 0.258489 (0.192066) | 0.478532 / 0.293841 (0.184691) | 0.036258 / 0.128546 (-0.092288) | 0.009869 / 0.075646 (-0.065777) | 0.083786 / 0.419271 (-0.335486) | 0.056546 / 0.043533 (0.013013) | 0.449647 / 0.255139 (0.194508) | 0.457588 / 0.283200 (0.174389) | 0.027197 / 0.141683 (-0.114486) | 1.769991 / 1.452155 (0.317836) | 1.859905 / 1.492716 (0.367189) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.268637 / 0.018006 (0.250631) | 0.492860 / 0.000490 (0.492370) | 0.008574 / 0.000200 (0.008374) | 0.000140 / 0.000054 (0.000085) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.037679 / 0.037411 (0.000268) | 0.108258 / 0.014526 (0.093733) | 0.117850 / 0.176557 (-0.058707) | 0.181611 / 0.737135 (-0.555524) | 0.120901 / 0.296338 (-0.175437) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.485780 / 0.215209 (0.270571) | 4.851289 / 2.077655 (2.773635) | 2.486068 / 1.504120 (0.981948) | 2.299417 / 1.541195 (0.758222) | 2.387093 / 1.468490 (0.918603) | 0.568826 / 4.584777 (-4.015951) | 4.163426 / 3.745712 (0.417713) | 6.224964 / 5.269862 (0.955102) | 3.255619 / 4.565676 (-1.310058) | 0.067081 / 0.424275 (-0.357194) | 0.009065 / 0.007607 (0.001458) | 0.580449 / 0.226044 (0.354405) | 5.786394 / 2.268929 (3.517465) | 3.057780 / 55.444624 (-52.386844) | 2.764339 / 6.876477 (-4.112138) | 2.880718 / 2.142072 (0.738645) | 0.681376 / 4.805227 (-4.123851) | 0.157858 / 6.500664 (-6.342806) | 0.072481 / 0.075469 (-0.002988) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.590704 / 1.841788 (-0.251083) | 23.141929 / 8.074308 (15.067620) | 17.001141 / 10.191392 (6.809749) | 0.203790 / 0.680424 (-0.476634) | 0.021766 / 0.534201 (-0.512435) | 0.475309 / 0.579283 (-0.103974) | 0.466448 / 0.434364 (0.032084) | 0.551470 / 0.540337 (0.011132) | 0.727876 / 1.386936 (-0.659060) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#61b19eea7fc5cf484e8cdf41d6ae035f94d8a671 \"CML watermark\")\n" ]

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[ "The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6083). All of your documentation changes will be reflected on that endpoint.", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006049 / 0.011353 (-0.005304) | 0.003698 / 0.011008 (-0.007310) | 0.080614 / 0.038508 (0.042106) | 0.060955 / 0.023109 (0.037846) | 0.337119 / 0.275898 (0.061221) | 0.369544 / 0.323480 (0.046064) | 0.004681 / 0.007986 (-0.003305) | 0.002892 / 0.004328 (-0.001436) | 0.062907 / 0.004250 (0.058657) | 0.049235 / 0.037052 (0.012183) | 0.338842 / 0.258489 (0.080353) | 0.371172 / 0.293841 (0.077331) | 0.027016 / 0.128546 (-0.101530) | 0.007940 / 0.075646 (-0.067706) | 0.260902 / 0.419271 (-0.158369) | 0.044566 / 0.043533 (0.001034) | 0.342354 / 0.255139 (0.087215) | 0.359829 / 0.283200 (0.076629) | 0.020801 / 0.141683 (-0.120881) | 1.444111 / 1.452155 (-0.008044) | 1.515595 / 1.492716 (0.022879) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.183446 / 0.018006 (0.165439) | 0.437071 / 0.000490 (0.436581) | 0.003124 / 0.000200 (0.002924) | 0.000067 / 0.000054 (0.000013) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023760 / 0.037411 (-0.013651) | 0.072812 / 0.014526 (0.058286) | 0.082790 / 0.176557 (-0.093766) | 0.146330 / 0.737135 (-0.590805) | 0.084469 / 0.296338 (-0.211870) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.395215 / 0.215209 (0.180006) | 3.953023 / 2.077655 (1.875369) | 1.914268 / 1.504120 (0.410148) | 1.710195 / 1.541195 (0.169001) | 1.782594 / 1.468490 (0.314104) | 0.503651 / 4.584777 (-4.081126) | 3.039656 / 3.745712 (-0.706056) | 4.364691 / 5.269862 (-0.905171) | 2.597762 / 4.565676 (-1.967915) | 0.057384 / 0.424275 (-0.366891) | 0.006419 / 0.007607 (-0.001188) | 0.467214 / 0.226044 (0.241169) | 4.661425 / 2.268929 (2.392497) | 2.341957 / 55.444624 (-53.102667) | 1.977598 / 6.876477 (-4.898878) | 2.178005 / 2.142072 (0.035933) | 0.588492 / 4.805227 (-4.216735) | 0.124972 / 6.500664 (-6.375692) | 0.060902 / 0.075469 (-0.014567) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.243092 / 1.841788 (-0.598695) | 18.369971 / 8.074308 (10.295663) | 13.939700 / 10.191392 (3.748308) | 0.149275 / 0.680424 (-0.531149) | 0.016873 / 0.534201 (-0.517328) | 0.334245 / 0.579283 (-0.245038) | 0.353832 / 0.434364 (-0.080532) | 0.382720 / 0.540337 (-0.157617) | 0.534634 / 1.386936 (-0.852302) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005933 / 0.011353 (-0.005420) | 0.003695 / 0.011008 (-0.007313) | 0.063457 / 0.038508 (0.024949) | 0.062347 / 0.023109 (0.039238) | 0.412370 / 0.275898 (0.136472) | 0.450399 / 0.323480 (0.126920) | 0.004627 / 0.007986 (-0.003358) | 0.002822 / 0.004328 (-0.001507) | 0.063819 / 0.004250 (0.059569) | 0.049154 / 0.037052 (0.012101) | 0.428196 / 0.258489 (0.169707) | 0.464109 / 0.293841 (0.170268) | 0.026967 / 0.128546 (-0.101579) | 0.007876 / 0.075646 (-0.067770) | 0.068479 / 0.419271 (-0.350793) | 0.041080 / 0.043533 (-0.002453) | 0.399817 / 0.255139 (0.144678) | 0.426900 / 0.283200 (0.143701) | 0.019931 / 0.141683 (-0.121752) | 1.461642 / 1.452155 (0.009487) | 1.529314 / 1.492716 (0.036598) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.230256 / 0.018006 (0.212249) | 0.423442 / 0.000490 (0.422952) | 0.002492 / 0.000200 (0.002292) | 0.000072 / 0.000054 (0.000018) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025798 / 0.037411 (-0.011613) | 0.077361 / 0.014526 (0.062836) | 0.088454 / 0.176557 (-0.088102) | 0.142137 / 0.737135 (-0.594998) | 0.088213 / 0.296338 (-0.208125) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.417656 / 0.215209 (0.202447) | 4.157095 / 2.077655 (2.079440) | 2.132863 / 1.504120 (0.628743) | 1.967220 / 1.541195 (0.426025) | 2.020505 / 1.468490 (0.552015) | 0.496835 / 4.584777 (-4.087942) | 2.989251 / 3.745712 (-0.756462) | 2.849315 / 5.269862 (-2.420546) | 1.848941 / 4.565676 (-2.716736) | 0.057307 / 0.424275 (-0.366968) | 0.006825 / 0.007607 (-0.000782) | 0.489103 / 0.226044 (0.263059) | 4.904776 / 2.268929 (2.635847) | 2.593914 / 55.444624 (-52.850710) | 2.253384 / 6.876477 (-4.623093) | 2.426384 / 2.142072 (0.284312) | 0.592467 / 4.805227 (-4.212760) | 0.126122 / 6.500664 (-6.374542) | 0.063160 / 0.075469 (-0.012309) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.313020 / 1.841788 (-0.528768) | 18.343984 / 8.074308 (10.269676) | 13.763060 / 10.191392 (3.571668) | 0.146312 / 0.680424 (-0.534111) | 0.016980 / 0.534201 (-0.517221) | 0.339572 / 0.579283 (-0.239711) | 0.351310 / 0.434364 (-0.083054) | 0.397616 / 0.540337 (-0.142721) | 0.536879 / 1.386936 (-0.850057) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#73bed12ecda17d1573fd3bf73ed5db24d3622f86 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009979 / 0.011353 (-0.001374) | 0.005024 / 0.011008 (-0.005984) | 0.096566 / 0.038508 (0.058058) | 0.081181 / 0.023109 (0.058072) | 0.398415 / 0.275898 (0.122517) | 0.513971 / 0.323480 (0.190491) | 0.006716 / 0.007986 (-0.001269) | 0.004350 / 0.004328 (0.000022) | 0.071418 / 0.004250 (0.067168) | 0.065002 / 0.037052 (0.027949) | 0.424791 / 0.258489 (0.166302) | 0.442369 / 0.293841 (0.148528) | 0.054540 / 0.128546 (-0.074007) | 0.014067 / 0.075646 (-0.061580) | 0.368930 / 0.419271 (-0.050341) | 0.082468 / 0.043533 (0.038935) | 0.419875 / 0.255139 (0.164736) | 0.508308 / 0.283200 (0.225108) | 0.050411 / 0.141683 (-0.091272) | 1.582271 / 1.452155 (0.130116) | 1.842033 / 1.492716 (0.349317) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.290427 / 0.018006 (0.272420) | 0.594736 / 0.000490 (0.594246) | 0.007058 / 0.000200 (0.006858) | 0.000149 / 0.000054 (0.000095) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.027085 / 0.037411 (-0.010326) | 0.087626 / 0.014526 (0.073101) | 0.094299 / 0.176557 (-0.082257) | 0.160169 / 0.737135 (-0.576966) | 0.101474 / 0.296338 (-0.194864) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.545845 / 0.215209 (0.330636) | 5.674389 / 2.077655 (3.596734) | 2.489065 / 1.504120 (0.984945) | 2.166674 / 1.541195 (0.625479) | 2.166925 / 1.468490 (0.698434) | 0.791244 / 4.584777 (-3.793533) | 4.944878 / 3.745712 (1.199165) | 4.121628 / 5.269862 (-1.148234) | 2.701262 / 4.565676 (-1.864415) | 0.087609 / 0.424275 (-0.336666) | 0.006945 / 0.007607 (-0.000662) | 0.668478 / 0.226044 (0.442434) | 6.552813 / 2.268929 (4.283885) | 3.164698 / 55.444624 (-52.279927) | 2.447333 / 6.876477 (-4.429144) | 2.608271 / 2.142072 (0.466198) | 0.954202 / 4.805227 (-3.851025) | 0.187730 / 6.500664 (-6.312934) | 0.063229 / 0.075469 (-0.012240) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.461042 / 1.841788 (-0.380746) | 21.601409 / 8.074308 (13.527101) | 18.553604 / 10.191392 (8.362212) | 0.234571 / 0.680424 (-0.445853) | 0.027119 / 0.534201 (-0.507082) | 0.423448 / 0.579283 (-0.155835) | 0.556397 / 0.434364 (0.122033) | 0.493958 / 0.540337 (-0.046379) | 0.711345 / 1.386936 (-0.675591) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008637 / 0.011353 (-0.002716) | 0.014450 / 0.011008 (0.003442) | 0.084135 / 0.038508 (0.045627) | 0.080513 / 0.023109 (0.057403) | 0.557941 / 0.275898 (0.282042) | 0.563199 / 0.323480 (0.239719) | 0.006475 / 0.007986 (-0.001510) | 0.004407 / 0.004328 (0.000078) | 0.088537 / 0.004250 (0.084287) | 0.060871 / 0.037052 (0.023819) | 0.593077 / 0.258489 (0.334588) | 0.615572 / 0.293841 (0.321732) | 0.050157 / 0.128546 (-0.078389) | 0.014313 / 0.075646 (-0.061333) | 0.091784 / 0.419271 (-0.327487) | 0.065649 / 0.043533 (0.022116) | 0.532569 / 0.255139 (0.277430) | 0.580775 / 0.283200 (0.297575) | 0.036434 / 0.141683 (-0.105249) | 2.080051 / 1.452155 (0.627896) | 1.907430 / 1.492716 (0.414713) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.297763 / 0.018006 (0.279757) | 0.670408 / 0.000490 (0.669918) | 0.000467 / 0.000200 (0.000267) | 0.000082 / 0.000054 (0.000027) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030297 / 0.037411 (-0.007114) | 0.100310 / 0.014526 (0.085784) | 0.113158 / 0.176557 (-0.063398) | 0.149599 / 0.737135 (-0.587536) | 0.102620 / 0.296338 (-0.193718) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.616588 / 0.215209 (0.401379) | 6.572262 / 2.077655 (4.494608) | 2.830748 / 1.504120 (1.326628) | 2.478441 / 1.541195 (0.937246) | 2.573017 / 1.468490 (1.104527) | 0.844154 / 4.584777 (-3.740623) | 5.161625 / 3.745712 (1.415913) | 4.541114 / 5.269862 (-0.728748) | 2.907804 / 4.565676 (-1.657872) | 0.097044 / 0.424275 (-0.327231) | 0.008692 / 0.007607 (0.001085) | 0.806640 / 0.226044 (0.580595) | 7.620521 / 2.268929 (5.351593) | 3.587100 / 55.444624 (-51.857524) | 2.901319 / 6.876477 (-3.975157) | 3.091288 / 2.142072 (0.949215) | 1.056109 / 4.805227 (-3.749118) | 0.209860 / 6.500664 (-6.290804) | 0.079575 / 0.075469 (0.004106) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.966194 / 1.841788 (0.124407) | 28.040515 / 8.074308 (19.966207) | 25.848647 / 10.191392 (15.657255) | 0.255472 / 0.680424 (-0.424951) | 0.036154 / 0.534201 (-0.498046) | 0.515168 / 0.579283 (-0.064115) | 0.696092 / 0.434364 (0.261728) | 0.602712 / 0.540337 (0.062374) | 0.781091 / 1.386936 (-0.605845) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#6f641aca7fbb1f21da48c087a5c10e76f4c6be35 \"CML watermark\")\n" ]

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[ "The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6082). All of your documentation changes will be reflected on that endpoint.", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007215 / 0.011353 (-0.004138) | 0.004101 / 0.011008 (-0.006907) | 0.085884 / 0.038508 (0.047376) | 0.085375 / 0.023109 (0.062266) | 0.351610 / 0.275898 (0.075712) | 0.399284 / 0.323480 (0.075804) | 0.005598 / 0.007986 (-0.002388) | 0.003405 / 0.004328 (-0.000923) | 0.064906 / 0.004250 (0.060656) | 0.059000 / 0.037052 (0.021948) | 0.354589 / 0.258489 (0.096100) | 0.406070 / 0.293841 (0.112229) | 0.031627 / 0.128546 (-0.096919) | 0.008597 / 0.075646 (-0.067049) | 0.291050 / 0.419271 (-0.128221) | 0.054120 / 0.043533 (0.010587) | 0.366242 / 0.255139 (0.111103) | 0.375975 / 0.283200 (0.092776) | 0.025608 / 0.141683 (-0.116074) | 1.473514 / 1.452155 (0.021359) | 1.543226 / 1.492716 (0.050510) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.198068 / 0.018006 (0.180062) | 0.450583 / 0.000490 (0.450093) | 0.005368 / 0.000200 (0.005168) | 0.000102 / 0.000054 (0.000047) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.028323 / 0.037411 (-0.009089) | 0.089058 / 0.014526 (0.074533) | 0.097718 / 0.176557 (-0.078839) | 0.154546 / 0.737135 (-0.582590) | 0.098224 / 0.296338 (-0.198115) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.386292 / 0.215209 (0.171083) | 3.846222 / 2.077655 (1.768567) | 1.858695 / 1.504120 (0.354575) | 1.685885 / 1.541195 (0.144690) | 1.790727 / 1.468490 (0.322237) | 0.486771 / 4.584777 (-4.098006) | 3.658363 / 3.745712 (-0.087349) | 5.345236 / 5.269862 (0.075374) | 3.215942 / 4.565676 (-1.349734) | 0.057580 / 0.424275 (-0.366695) | 0.007382 / 0.007607 (-0.000225) | 0.464174 / 0.226044 (0.238129) | 4.640848 / 2.268929 (2.371920) | 2.383152 / 55.444624 (-53.061472) | 2.013288 / 6.876477 (-4.863188) | 2.244142 / 2.142072 (0.102069) | 0.585408 / 4.805227 (-4.219819) | 0.134698 / 6.500664 (-6.365966) | 0.060641 / 0.075469 (-0.014828) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.258414 / 1.841788 (-0.583374) | 19.825848 / 8.074308 (11.751540) | 14.644025 / 10.191392 (4.452633) | 0.169198 / 0.680424 (-0.511226) | 0.018180 / 0.534201 (-0.516021) | 0.395100 / 0.579283 (-0.184183) | 0.411543 / 0.434364 (-0.022821) | 0.463364 / 0.540337 (-0.076973) | 0.628613 / 1.386936 (-0.758323) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006860 / 0.011353 (-0.004493) | 0.003981 / 0.011008 (-0.007027) | 0.065589 / 0.038508 (0.027081) | 0.082460 / 0.023109 (0.059350) | 0.362980 / 0.275898 (0.087082) | 0.394837 / 0.323480 (0.071357) | 0.005298 / 0.007986 (-0.002688) | 0.003372 / 0.004328 (-0.000957) | 0.064918 / 0.004250 (0.060667) | 0.058033 / 0.037052 (0.020981) | 0.367259 / 0.258489 (0.108770) | 0.403122 / 0.293841 (0.109281) | 0.031566 / 0.128546 (-0.096980) | 0.008583 / 0.075646 (-0.067063) | 0.071287 / 0.419271 (-0.347984) | 0.049586 / 0.043533 (0.006053) | 0.359252 / 0.255139 (0.104113) | 0.378519 / 0.283200 (0.095319) | 0.023412 / 0.141683 (-0.118271) | 1.494522 / 1.452155 (0.042367) | 1.559176 / 1.492716 (0.066460) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.228396 / 0.018006 (0.210390) | 0.441865 / 0.000490 (0.441375) | 0.000395 / 0.000200 (0.000195) | 0.000054 / 0.000054 (-0.000000) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031169 / 0.037411 (-0.006242) | 0.093427 / 0.014526 (0.078901) | 0.100673 / 0.176557 (-0.075883) | 0.152817 / 0.737135 (-0.584319) | 0.102226 / 0.296338 (-0.194112) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.437032 / 0.215209 (0.221823) | 4.376078 / 2.077655 (2.298423) | 2.346928 / 1.504120 (0.842808) | 2.168573 / 1.541195 (0.627378) | 2.261024 / 1.468490 (0.792534) | 0.497080 / 4.584777 (-4.087697) | 3.594402 / 3.745712 (-0.151310) | 5.090361 / 5.269862 (-0.179501) | 3.034750 / 4.565676 (-1.530927) | 0.058538 / 0.424275 (-0.365737) | 0.007892 / 0.007607 (0.000285) | 0.517643 / 0.226044 (0.291598) | 5.173174 / 2.268929 (2.904246) | 2.825917 / 55.444624 (-52.618708) | 2.542593 / 6.876477 (-4.333884) | 2.716290 / 2.142072 (0.574218) | 0.598253 / 4.805227 (-4.206974) | 0.135610 / 6.500664 (-6.365054) | 0.062113 / 0.075469 (-0.013356) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.389554 / 1.841788 (-0.452233) | 20.412868 / 8.074308 (12.338560) | 14.539988 / 10.191392 (4.348596) | 0.162046 / 0.680424 (-0.518378) | 0.018508 / 0.534201 (-0.515693) | 0.398840 / 0.579283 (-0.180443) | 0.400902 / 0.434364 (-0.033462) | 0.463647 / 0.540337 (-0.076691) | 0.612921 / 1.386936 (-0.774015) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#45bef1810d9341ba4cb27547d748fddb97843792 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005943 / 0.011353 (-0.005410) | 0.003582 / 0.011008 (-0.007426) | 0.080030 / 0.038508 (0.041522) | 0.057458 / 0.023109 (0.034349) | 0.390783 / 0.275898 (0.114885) | 0.430926 / 0.323480 (0.107446) | 0.003207 / 0.007986 (-0.004778) | 0.003592 / 0.004328 (-0.000737) | 0.062468 / 0.004250 (0.058217) | 0.046739 / 0.037052 (0.009687) | 0.394343 / 0.258489 (0.135854) | 0.435912 / 0.293841 (0.142071) | 0.026812 / 0.128546 (-0.101734) | 0.007954 / 0.075646 (-0.067692) | 0.261415 / 0.419271 (-0.157857) | 0.044665 / 0.043533 (0.001132) | 0.403454 / 0.255139 (0.148315) | 0.418946 / 0.283200 (0.135747) | 0.022247 / 0.141683 (-0.119436) | 1.456387 / 1.452155 (0.004232) | 1.508234 / 1.492716 (0.015518) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.182487 / 0.018006 (0.164480) | 0.416343 / 0.000490 (0.415854) | 0.001404 / 0.000200 (0.001204) | 0.000062 / 0.000054 (0.000007) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023643 / 0.037411 (-0.013768) | 0.071798 / 0.014526 (0.057272) | 0.083623 / 0.176557 (-0.092933) | 0.146023 / 0.737135 (-0.591112) | 0.083094 / 0.296338 (-0.213245) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.417484 / 0.215209 (0.202275) | 4.157393 / 2.077655 (2.079738) | 1.950438 / 1.504120 (0.446318) | 1.766639 / 1.541195 (0.225444) | 1.807382 / 1.468490 (0.338892) | 0.496061 / 4.584777 (-4.088716) | 2.975001 / 3.745712 (-0.770711) | 3.340608 / 5.269862 (-1.929254) | 2.236293 / 4.565676 (-2.329384) | 0.056946 / 0.424275 (-0.367329) | 0.006506 / 0.007607 (-0.001101) | 0.480377 / 0.226044 (0.254332) | 4.788525 / 2.268929 (2.519597) | 2.430139 / 55.444624 (-53.014485) | 2.154145 / 6.876477 (-4.722332) | 2.321623 / 2.142072 (0.179551) | 0.584040 / 4.805227 (-4.221188) | 0.124508 / 6.500664 (-6.376156) | 0.060828 / 0.075469 (-0.014641) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.201641 / 1.841788 (-0.640146) | 18.066232 / 8.074308 (9.991924) | 14.022304 / 10.191392 (3.830912) | 0.146573 / 0.680424 (-0.533850) | 0.016892 / 0.534201 (-0.517308) | 0.333259 / 0.579283 (-0.246024) | 0.357795 / 0.434364 (-0.076568) | 0.391265 / 0.540337 (-0.149072) | 0.551378 / 1.386936 (-0.835558) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005706 / 0.011353 (-0.005647) | 0.003448 / 0.011008 (-0.007560) | 0.063146 / 0.038508 (0.024638) | 0.056292 / 0.023109 (0.033183) | 0.355533 / 0.275898 (0.079635) | 0.394996 / 0.323480 (0.071517) | 0.004270 / 0.007986 (-0.003716) | 0.002790 / 0.004328 (-0.001538) | 0.063033 / 0.004250 (0.058783) | 0.044684 / 0.037052 (0.007631) | 0.370621 / 0.258489 (0.112132) | 0.401074 / 0.293841 (0.107233) | 0.026737 / 0.128546 (-0.101809) | 0.007872 / 0.075646 (-0.067774) | 0.068815 / 0.419271 (-0.350457) | 0.040976 / 0.043533 (-0.002557) | 0.370733 / 0.255139 (0.115594) | 0.387418 / 0.283200 (0.104218) | 0.018854 / 0.141683 (-0.122829) | 1.479834 / 1.452155 (0.027680) | 1.536388 / 1.492716 (0.043672) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.222125 / 0.018006 (0.204119) | 0.408007 / 0.000490 (0.407517) | 0.000367 / 0.000200 (0.000167) | 0.000055 / 0.000054 (0.000001) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025100 / 0.037411 (-0.012311) | 0.076617 / 0.014526 (0.062091) | 0.088311 / 0.176557 (-0.088246) | 0.143785 / 0.737135 (-0.593350) | 0.088349 / 0.296338 (-0.207989) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.419246 / 0.215209 (0.204037) | 4.172413 / 2.077655 (2.094759) | 2.199355 / 1.504120 (0.695235) | 2.025158 / 1.541195 (0.483963) | 2.074491 / 1.468490 (0.606001) | 0.495893 / 4.584777 (-4.088884) | 2.998858 / 3.745712 (-0.746854) | 2.770531 / 5.269862 (-2.499331) | 1.817497 / 4.565676 (-2.748179) | 0.057317 / 0.424275 (-0.366958) | 0.006723 / 0.007607 (-0.000884) | 0.491062 / 0.226044 (0.265017) | 4.906155 / 2.268929 (2.637226) | 2.654916 / 55.444624 (-52.789708) | 2.299873 / 6.876477 (-4.576604) | 2.451438 / 2.142072 (0.309366) | 0.585048 / 4.805227 (-4.220179) | 0.124778 / 6.500664 (-6.375886) | 0.062067 / 0.075469 (-0.013402) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.298239 / 1.841788 (-0.543549) | 18.090238 / 8.074308 (10.015930) | 13.822568 / 10.191392 (3.631176) | 0.130560 / 0.680424 (-0.549864) | 0.016662 / 0.534201 (-0.517539) | 0.333337 / 0.579283 (-0.245946) | 0.348493 / 0.434364 (-0.085871) | 0.386049 / 0.540337 (-0.154289) | 0.511156 / 1.386936 (-0.875780) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#029956a347b0306cd27f693e12cf9a82acf4ef80 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006014 / 0.011353 (-0.005339) | 0.003623 / 0.011008 (-0.007385) | 0.080500 / 0.038508 (0.041992) | 0.057713 / 0.023109 (0.034603) | 0.325976 / 0.275898 (0.050078) | 0.359986 / 0.323480 (0.036506) | 0.004709 / 0.007986 (-0.003277) | 0.002933 / 0.004328 (-0.001395) | 0.063457 / 0.004250 (0.059207) | 0.047514 / 0.037052 (0.010462) | 0.331629 / 0.258489 (0.073140) | 0.382048 / 0.293841 (0.088207) | 0.026949 / 0.128546 (-0.101597) | 0.008043 / 0.075646 (-0.067604) | 0.262152 / 0.419271 (-0.157119) | 0.045271 / 0.043533 (0.001738) | 0.333355 / 0.255139 (0.078216) | 0.347996 / 0.283200 (0.064796) | 0.020814 / 0.141683 (-0.120868) | 1.460723 / 1.452155 (0.008568) | 1.488845 / 1.492716 (-0.003872) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.193735 / 0.018006 (0.175728) | 0.431433 / 0.000490 (0.430943) | 0.002494 / 0.000200 (0.002294) | 0.000066 / 0.000054 (0.000012) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023762 / 0.037411 (-0.013650) | 0.072680 / 0.014526 (0.058154) | 0.081687 / 0.176557 (-0.094869) | 0.143224 / 0.737135 (-0.593911) | 0.083083 / 0.296338 (-0.213255) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.397393 / 0.215209 (0.182184) | 3.954643 / 2.077655 (1.876989) | 1.950038 / 1.504120 (0.445919) | 1.760551 / 1.541195 (0.219357) | 1.871165 / 1.468490 (0.402675) | 0.508645 / 4.584777 (-4.076132) | 3.114379 / 3.745712 (-0.631333) | 3.474554 / 5.269862 (-1.795307) | 2.090126 / 4.565676 (-2.475551) | 0.058008 / 0.424275 (-0.366267) | 0.006465 / 0.007607 (-0.001142) | 0.475009 / 0.226044 (0.248965) | 4.767981 / 2.268929 (2.499052) | 2.372050 / 55.444624 (-53.072574) | 2.038094 / 6.876477 (-4.838383) | 2.072819 / 2.142072 (-0.069253) | 0.591913 / 4.805227 (-4.213314) | 0.125002 / 6.500664 (-6.375662) | 0.060055 / 0.075469 (-0.015414) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.234171 / 1.841788 (-0.607617) | 18.121476 / 8.074308 (10.047168) | 13.727313 / 10.191392 (3.535921) | 0.136021 / 0.680424 (-0.544402) | 0.016505 / 0.534201 (-0.517696) | 0.331400 / 0.579283 (-0.247883) | 0.346019 / 0.434364 (-0.088345) | 0.378985 / 0.540337 (-0.161353) | 0.522606 / 1.386936 (-0.864330) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006035 / 0.011353 (-0.005318) | 0.003584 / 0.011008 (-0.007425) | 0.061953 / 0.038508 (0.023445) | 0.059416 / 0.023109 (0.036307) | 0.359380 / 0.275898 (0.083482) | 0.396842 / 0.323480 (0.073363) | 0.004716 / 0.007986 (-0.003269) | 0.002825 / 0.004328 (-0.001504) | 0.061697 / 0.004250 (0.057447) | 0.049009 / 0.037052 (0.011956) | 0.363099 / 0.258489 (0.104610) | 0.403672 / 0.293841 (0.109831) | 0.027722 / 0.128546 (-0.100824) | 0.007966 / 0.075646 (-0.067680) | 0.067455 / 0.419271 (-0.351816) | 0.042530 / 0.043533 (-0.001003) | 0.361257 / 0.255139 (0.106118) | 0.388957 / 0.283200 (0.105758) | 0.021845 / 0.141683 (-0.119838) | 1.431989 / 1.452155 (-0.020166) | 1.503131 / 1.492716 (0.010415) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.241493 / 0.018006 (0.223487) | 0.429319 / 0.000490 (0.428829) | 0.002604 / 0.000200 (0.002404) | 0.000074 / 0.000054 (0.000019) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.026227 / 0.037411 (-0.011184) | 0.077177 / 0.014526 (0.062651) | 0.085840 / 0.176557 (-0.090717) | 0.142280 / 0.737135 (-0.594855) | 0.088465 / 0.296338 (-0.207873) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.434912 / 0.215209 (0.219703) | 4.339664 / 2.077655 (2.262009) | 2.242495 / 1.504120 (0.738375) | 2.091353 / 1.541195 (0.550159) | 2.161425 / 1.468490 (0.692935) | 0.501647 / 4.584777 (-4.083130) | 3.075326 / 3.745712 (-0.670386) | 4.091557 / 5.269862 (-1.178304) | 2.776425 / 4.565676 (-1.789251) | 0.057338 / 0.424275 (-0.366937) | 0.006767 / 0.007607 (-0.000840) | 0.506882 / 0.226044 (0.280837) | 5.059074 / 2.268929 (2.790146) | 2.706665 / 55.444624 (-52.737959) | 2.370253 / 6.876477 (-4.506224) | 2.505421 / 2.142072 (0.363348) | 0.590289 / 4.805227 (-4.214938) | 0.125990 / 6.500664 (-6.374674) | 0.062778 / 0.075469 (-0.012691) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.361287 / 1.841788 (-0.480501) | 18.500726 / 8.074308 (10.426418) | 13.844459 / 10.191392 (3.653067) | 0.144416 / 0.680424 (-0.536008) | 0.016987 / 0.534201 (-0.517214) | 0.336237 / 0.579283 (-0.243046) | 0.357116 / 0.434364 (-0.077248) | 0.402062 / 0.540337 (-0.138275) | 0.543066 / 1.386936 (-0.843870) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#029956a347b0306cd27f693e12cf9a82acf4ef80 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007559 / 0.011353 (-0.003794) | 0.004379 / 0.011008 (-0.006629) | 0.089702 / 0.038508 (0.051194) | 0.065104 / 0.023109 (0.041995) | 0.362016 / 0.275898 (0.086118) | 0.376768 / 0.323480 (0.053288) | 0.006538 / 0.007986 (-0.001447) | 0.004167 / 0.004328 (-0.000161) | 0.074138 / 0.004250 (0.069888) | 0.052753 / 0.037052 (0.015701) | 0.366367 / 0.258489 (0.107878) | 0.389121 / 0.293841 (0.095280) | 0.042820 / 0.128546 (-0.085727) | 0.012560 / 0.075646 (-0.063086) | 0.359235 / 0.419271 (-0.060037) | 0.074250 / 0.043533 (0.030718) | 0.384051 / 0.255139 (0.128912) | 0.385450 / 0.283200 (0.102250) | 0.046270 / 0.141683 (-0.095413) | 1.593275 / 1.452155 (0.141120) | 1.704207 / 1.492716 (0.211490) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.249390 / 0.018006 (0.231384) | 0.614347 / 0.000490 (0.613857) | 0.012641 / 0.000200 (0.012441) | 0.000126 / 0.000054 (0.000072) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029099 / 0.037411 (-0.008312) | 0.090966 / 0.014526 (0.076440) | 0.102273 / 0.176557 (-0.074284) | 0.167564 / 0.737135 (-0.569571) | 0.106118 / 0.296338 (-0.190220) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.536122 / 0.215209 (0.320913) | 5.448464 / 2.077655 (3.370809) | 2.461977 / 1.504120 (0.957857) | 2.081506 / 1.541195 (0.540311) | 2.091509 / 1.468490 (0.623019) | 0.810307 / 4.584777 (-3.774470) | 5.161304 / 3.745712 (1.415592) | 4.525070 / 5.269862 (-0.744792) | 2.886313 / 4.565676 (-1.679363) | 0.093992 / 0.424275 (-0.330283) | 0.008516 / 0.007607 (0.000909) | 0.691978 / 0.226044 (0.465934) | 6.834665 / 2.268929 (4.565737) | 3.284355 / 55.444624 (-52.160270) | 2.496803 / 6.876477 (-4.379674) | 2.814387 / 2.142072 (0.672315) | 0.985300 / 4.805227 (-3.819928) | 0.210343 / 6.500664 (-6.290321) | 0.075459 / 0.075469 (-0.000010) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.436073 / 1.841788 (-0.405714) | 22.722401 / 8.074308 (14.648093) | 19.988521 / 10.191392 (9.797129) | 0.229757 / 0.680424 (-0.450667) | 0.029672 / 0.534201 (-0.504529) | 0.479914 / 0.579283 (-0.099369) | 0.605106 / 0.434364 (0.170743) | 0.511668 / 0.540337 (-0.028670) | 0.800281 / 1.386936 (-0.586655) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008665 / 0.011353 (-0.002688) | 0.006009 / 0.011008 (-0.004999) | 0.073377 / 0.038508 (0.034869) | 0.077188 / 0.023109 (0.054079) | 0.451422 / 0.275898 (0.175524) | 0.484640 / 0.323480 (0.161160) | 0.006266 / 0.007986 (-0.001719) | 0.004129 / 0.004328 (-0.000200) | 0.063102 / 0.004250 (0.058851) | 0.064653 / 0.037052 (0.027601) | 0.439521 / 0.258489 (0.181032) | 0.458964 / 0.293841 (0.165123) | 0.046018 / 0.128546 (-0.082528) | 0.014109 / 0.075646 (-0.061537) | 0.095727 / 0.419271 (-0.323544) | 0.070133 / 0.043533 (0.026600) | 0.440143 / 0.255139 (0.185004) | 0.502468 / 0.283200 (0.219269) | 0.034582 / 0.141683 (-0.107101) | 1.656282 / 1.452155 (0.204127) | 1.784641 / 1.492716 (0.291925) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.303111 / 0.018006 (0.285105) | 0.599194 / 0.000490 (0.598705) | 0.000411 / 0.000200 (0.000211) | 0.000073 / 0.000054 (0.000018) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.033061 / 0.037411 (-0.004350) | 0.096073 / 0.014526 (0.081548) | 0.095347 / 0.176557 (-0.081209) | 0.161004 / 0.737135 (-0.576131) | 0.111544 / 0.296338 (-0.184794) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.615695 / 0.215209 (0.400486) | 5.794243 / 2.077655 (3.716588) | 2.594720 / 1.504120 (1.090600) | 2.566255 / 1.541195 (1.025060) | 2.573653 / 1.468490 (1.105163) | 0.873653 / 4.584777 (-3.711124) | 5.353323 / 3.745712 (1.607611) | 4.604974 / 5.269862 (-0.664887) | 2.901282 / 4.565676 (-1.664394) | 0.099614 / 0.424275 (-0.324661) | 0.010368 / 0.007607 (0.002761) | 0.775490 / 0.226044 (0.549446) | 7.245449 / 2.268929 (4.976520) | 3.740165 / 55.444624 (-51.704459) | 2.986132 / 6.876477 (-3.890345) | 3.092510 / 2.142072 (0.950438) | 1.022461 / 4.805227 (-3.782766) | 0.212137 / 6.500664 (-6.288527) | 0.084534 / 0.075469 (0.009065) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.687983 / 1.841788 (-0.153805) | 23.491808 / 8.074308 (15.417500) | 20.722165 / 10.191392 (10.530773) | 0.231011 / 0.680424 (-0.449413) | 0.028309 / 0.534201 (-0.505892) | 0.436911 / 0.579283 (-0.142372) | 0.583126 / 0.434364 (0.148762) | 0.559712 / 0.540337 (0.019374) | 0.820645 / 1.386936 (-0.566291) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#029956a347b0306cd27f693e12cf9a82acf4ef80 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006538 / 0.011353 (-0.004815) | 0.003952 / 0.011008 (-0.007056) | 0.084183 / 0.038508 (0.045675) | 0.070616 / 0.023109 (0.047507) | 0.320491 / 0.275898 (0.044593) | 0.352021 / 0.323480 (0.028541) | 0.005330 / 0.007986 (-0.002656) | 0.003400 / 0.004328 (-0.000928) | 0.066392 / 0.004250 (0.062141) | 0.052529 / 0.037052 (0.015477) | 0.329581 / 0.258489 (0.071092) | 0.374437 / 0.293841 (0.080596) | 0.031379 / 0.128546 (-0.097167) | 0.008576 / 0.075646 (-0.067070) | 0.288621 / 0.419271 (-0.130650) | 0.052748 / 0.043533 (0.009215) | 0.319911 / 0.255139 (0.064772) | 0.358169 / 0.283200 (0.074970) | 0.023128 / 0.141683 (-0.118555) | 1.479578 / 1.452155 (0.027424) | 1.566351 / 1.492716 (0.073635) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.217616 / 0.018006 (0.199610) | 0.471546 / 0.000490 (0.471056) | 0.003880 / 0.000200 (0.003680) | 0.000085 / 0.000054 (0.000031) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.027716 / 0.037411 (-0.009696) | 0.081718 / 0.014526 (0.067192) | 0.095457 / 0.176557 (-0.081100) | 0.150746 / 0.737135 (-0.586389) | 0.096061 / 0.296338 (-0.200277) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.406811 / 0.215209 (0.191602) | 4.062757 / 2.077655 (1.985103) | 2.060658 / 1.504120 (0.556538) | 1.870944 / 1.541195 (0.329749) | 1.908984 / 1.468490 (0.440493) | 0.489053 / 4.584777 (-4.095724) | 3.571038 / 3.745712 (-0.174674) | 3.255351 / 5.269862 (-2.014511) | 2.007078 / 4.565676 (-2.558599) | 0.057078 / 0.424275 (-0.367197) | 0.007240 / 0.007607 (-0.000367) | 0.485641 / 0.226044 (0.259596) | 4.841657 / 2.268929 (2.572729) | 2.569676 / 55.444624 (-52.874949) | 2.151119 / 6.876477 (-4.725357) | 2.330337 / 2.142072 (0.188265) | 0.581721 / 4.805227 (-4.223506) | 0.132591 / 6.500664 (-6.368073) | 0.060491 / 0.075469 (-0.014978) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.237699 / 1.841788 (-0.604089) | 19.460306 / 8.074308 (11.385998) | 14.123006 / 10.191392 (3.931614) | 0.155669 / 0.680424 (-0.524754) | 0.018385 / 0.534201 (-0.515816) | 0.393330 / 0.579283 (-0.185953) | 0.408890 / 0.434364 (-0.025474) | 0.457348 / 0.540337 (-0.082989) | 0.640293 / 1.386936 (-0.746643) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006582 / 0.011353 (-0.004771) | 0.003950 / 0.011008 (-0.007059) | 0.064636 / 0.038508 (0.026128) | 0.077651 / 0.023109 (0.054541) | 0.365505 / 0.275898 (0.089607) | 0.393370 / 0.323480 (0.069890) | 0.005466 / 0.007986 (-0.002520) | 0.003314 / 0.004328 (-0.001014) | 0.064960 / 0.004250 (0.060710) | 0.057355 / 0.037052 (0.020302) | 0.377773 / 0.258489 (0.119284) | 0.408394 / 0.293841 (0.114553) | 0.031698 / 0.128546 (-0.096848) | 0.008575 / 0.075646 (-0.067071) | 0.070390 / 0.419271 (-0.348881) | 0.050035 / 0.043533 (0.006502) | 0.360461 / 0.255139 (0.105323) | 0.384862 / 0.283200 (0.101662) | 0.025380 / 0.141683 (-0.116303) | 1.484429 / 1.452155 (0.032275) | 1.542944 / 1.492716 (0.050227) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.190193 / 0.018006 (0.172187) | 0.468996 / 0.000490 (0.468506) | 0.003012 / 0.000200 (0.002812) | 0.000091 / 0.000054 (0.000036) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031488 / 0.037411 (-0.005923) | 0.088673 / 0.014526 (0.074147) | 0.101886 / 0.176557 (-0.074670) | 0.156774 / 0.737135 (-0.580361) | 0.102818 / 0.296338 (-0.193520) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.428019 / 0.215209 (0.212810) | 4.271369 / 2.077655 (2.193714) | 2.271530 / 1.504120 (0.767410) | 2.085172 / 1.541195 (0.543977) | 2.143439 / 1.468490 (0.674949) | 0.493468 / 4.584777 (-4.091309) | 3.569030 / 3.745712 (-0.176683) | 4.777962 / 5.269862 (-0.491900) | 2.872115 / 4.565676 (-1.693562) | 0.058200 / 0.424275 (-0.366075) | 0.007657 / 0.007607 (0.000050) | 0.502874 / 0.226044 (0.276830) | 5.026721 / 2.268929 (2.757792) | 2.734301 / 55.444624 (-52.710324) | 2.396072 / 6.876477 (-4.480405) | 2.574322 / 2.142072 (0.432249) | 0.593855 / 4.805227 (-4.211373) | 0.135134 / 6.500664 (-6.365530) | 0.061491 / 0.075469 (-0.013978) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.320522 / 1.841788 (-0.521265) | 19.933221 / 8.074308 (11.858912) | 14.055921 / 10.191392 (3.864529) | 0.149620 / 0.680424 (-0.530804) | 0.018590 / 0.534201 (-0.515611) | 0.399550 / 0.579283 (-0.179733) | 0.410463 / 0.434364 (-0.023901) | 0.469872 / 0.540337 (-0.070465) | 0.616481 / 1.386936 (-0.770455) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#029956a347b0306cd27f693e12cf9a82acf4ef80 \"CML watermark\")\n" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006680 / 0.011353 (-0.004673) | 0.003987 / 0.011008 (-0.007021) | 0.084677 / 0.038508 (0.046169) | 0.076800 / 0.023109 (0.053691) | 0.358338 / 0.275898 (0.082440) | 0.386573 / 0.323480 (0.063094) | 0.005370 / 0.007986 (-0.002616) | 0.003323 / 0.004328 (-0.001005) | 0.064238 / 0.004250 (0.059988) | 0.057859 / 0.037052 (0.020806) | 0.355408 / 0.258489 (0.096919) | 0.388302 / 0.293841 (0.094461) | 0.030784 / 0.128546 (-0.097762) | 0.008381 / 0.075646 (-0.067266) | 0.287971 / 0.419271 (-0.131300) | 0.053078 / 0.043533 (0.009545) | 0.352719 / 0.255139 (0.097580) | 0.370319 / 0.283200 (0.087119) | 0.023064 / 0.141683 (-0.118619) | 1.480661 / 1.452155 (0.028507) | 1.555711 / 1.492716 (0.062995) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.211289 / 0.018006 (0.193283) | 0.466957 / 0.000490 (0.466467) | 0.003760 / 0.000200 (0.003561) | 0.000076 / 0.000054 (0.000021) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.028552 / 0.037411 (-0.008859) | 0.084469 / 0.014526 (0.069943) | 0.096027 / 0.176557 (-0.080529) | 0.152170 / 0.737135 (-0.584965) | 0.096513 / 0.296338 (-0.199825) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.382940 / 0.215209 (0.167731) | 3.841735 / 2.077655 (1.764080) | 1.850575 / 1.504120 (0.346455) | 1.676554 / 1.541195 (0.135360) | 1.765241 / 1.468490 (0.296751) | 0.482131 / 4.584777 (-4.102646) | 3.512739 / 3.745712 (-0.232973) | 3.977042 / 5.269862 (-1.292820) | 2.387568 / 4.565676 (-2.178109) | 0.056657 / 0.424275 (-0.367618) | 0.007283 / 0.007607 (-0.000324) | 0.468193 / 0.226044 (0.242149) | 4.704077 / 2.268929 (2.435149) | 2.373467 / 55.444624 (-53.071157) | 2.002470 / 6.876477 (-4.874007) | 2.228280 / 2.142072 (0.086208) | 0.576908 / 4.805227 (-4.228320) | 0.132000 / 6.500664 (-6.368664) | 0.060544 / 0.075469 (-0.014926) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.256168 / 1.841788 (-0.585619) | 19.965458 / 8.074308 (11.891150) | 14.521435 / 10.191392 (4.330043) | 0.159156 / 0.680424 (-0.521268) | 0.018170 / 0.534201 (-0.516031) | 0.393019 / 0.579283 (-0.186264) | 0.415002 / 0.434364 (-0.019362) | 0.471810 / 0.540337 (-0.068528) | 0.658907 / 1.386936 (-0.728029) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006836 / 0.011353 (-0.004517) | 0.004067 / 0.011008 (-0.006942) | 0.066242 / 0.038508 (0.027734) | 0.078601 / 0.023109 (0.055491) | 0.369371 / 0.275898 (0.093473) | 0.402026 / 0.323480 (0.078546) | 0.006097 / 0.007986 (-0.001889) | 0.003337 / 0.004328 (-0.000991) | 0.065854 / 0.004250 (0.061603) | 0.057665 / 0.037052 (0.020612) | 0.379709 / 0.258489 (0.121219) | 0.406868 / 0.293841 (0.113027) | 0.031946 / 0.128546 (-0.096600) | 0.008691 / 0.075646 (-0.066955) | 0.071430 / 0.419271 (-0.347841) | 0.049518 / 0.043533 (0.005986) | 0.370439 / 0.255139 (0.115300) | 0.389235 / 0.283200 (0.106036) | 0.023730 / 0.141683 (-0.117953) | 1.509035 / 1.452155 (0.056880) | 1.548890 / 1.492716 (0.056173) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.229264 / 0.018006 (0.211258) | 0.445801 / 0.000490 (0.445312) | 0.000363 / 0.000200 (0.000163) | 0.000053 / 0.000054 (-0.000001) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032377 / 0.037411 (-0.005034) | 0.091082 / 0.014526 (0.076556) | 0.104816 / 0.176557 (-0.071740) | 0.161040 / 0.737135 (-0.576095) | 0.105165 / 0.296338 (-0.191173) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.411012 / 0.215209 (0.195803) | 4.097256 / 2.077655 (2.019602) | 2.088686 / 1.504120 (0.584566) | 1.934429 / 1.541195 (0.393234) | 2.027387 / 1.468490 (0.558896) | 0.476262 / 4.584777 (-4.108515) | 3.518416 / 3.745712 (-0.227296) | 3.260919 / 5.269862 (-2.008943) | 2.041441 / 4.565676 (-2.524235) | 0.056302 / 0.424275 (-0.367973) | 0.007750 / 0.007607 (0.000143) | 0.489966 / 0.226044 (0.263922) | 4.915844 / 2.268929 (2.646916) | 2.617001 / 55.444624 (-52.827623) | 2.333557 / 6.876477 (-4.542920) | 2.484530 / 2.142072 (0.342458) | 0.572009 / 4.805227 (-4.233219) | 0.142557 / 6.500664 (-6.358107) | 0.066711 / 0.075469 (-0.008758) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.359929 / 1.841788 (-0.481859) | 20.332252 / 8.074308 (12.257943) | 14.585842 / 10.191392 (4.394450) | 0.170498 / 0.680424 (-0.509926) | 0.018450 / 0.534201 (-0.515751) | 0.395449 / 0.579283 (-0.183834) | 0.409666 / 0.434364 (-0.024698) | 0.467937 / 0.540337 (-0.072401) | 0.616078 / 1.386936 (-0.770858) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#a888bc94dc6bce7815e3061a28e718097f4b8b9e \"CML watermark\")\n" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006458 / 0.011353 (-0.004894) | 0.003895 / 0.011008 (-0.007114) | 0.084280 / 0.038508 (0.045772) | 0.071304 / 0.023109 (0.048195) | 0.313910 / 0.275898 (0.038012) | 0.344070 / 0.323480 (0.020590) | 0.005413 / 0.007986 (-0.002573) | 0.003308 / 0.004328 (-0.001021) | 0.064570 / 0.004250 (0.060320) | 0.056824 / 0.037052 (0.019771) | 0.321102 / 0.258489 (0.062613) | 0.355834 / 0.293841 (0.061993) | 0.031252 / 0.128546 (-0.097294) | 0.008427 / 0.075646 (-0.067219) | 0.287348 / 0.419271 (-0.131924) | 0.053261 / 0.043533 (0.009728) | 0.324892 / 0.255139 (0.069753) | 0.335847 / 0.283200 (0.052647) | 0.023453 / 0.141683 (-0.118230) | 1.485456 / 1.452155 (0.033301) | 1.531329 / 1.492716 (0.038612) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.201924 / 0.018006 (0.183918) | 0.447188 / 0.000490 (0.446698) | 0.005543 / 0.000200 (0.005343) | 0.000086 / 0.000054 (0.000031) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.027586 / 0.037411 (-0.009825) | 0.082412 / 0.014526 (0.067886) | 0.094851 / 0.176557 (-0.081706) | 0.151331 / 0.737135 (-0.585804) | 0.094475 / 0.296338 (-0.201863) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.399004 / 0.215209 (0.183795) | 3.974652 / 2.077655 (1.896997) | 1.991909 / 1.504120 (0.487789) | 1.811684 / 1.541195 (0.270489) | 1.869774 / 1.468490 (0.401283) | 0.487745 / 4.584777 (-4.097032) | 3.558945 / 3.745712 (-0.186768) | 5.530468 / 5.269862 (0.260606) | 3.293147 / 4.565676 (-1.272529) | 0.057531 / 0.424275 (-0.366744) | 0.007212 / 0.007607 (-0.000395) | 0.470325 / 0.226044 (0.244281) | 4.701652 / 2.268929 (2.432723) | 2.453020 / 55.444624 (-52.991605) | 2.110152 / 6.876477 (-4.766325) | 2.314669 / 2.142072 (0.172597) | 0.615039 / 4.805227 (-4.190189) | 0.133229 / 6.500664 (-6.367435) | 0.060821 / 0.075469 (-0.014648) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.296708 / 1.841788 (-0.545079) | 18.717251 / 8.074308 (10.642943) | 14.325305 / 10.191392 (4.133913) | 0.147680 / 0.680424 (-0.532744) | 0.018312 / 0.534201 (-0.515889) | 0.392766 / 0.579283 (-0.186517) | 0.403319 / 0.434364 (-0.031045) | 0.453696 / 0.540337 (-0.086641) | 0.622564 / 1.386936 (-0.764372) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006483 / 0.011353 (-0.004870) | 0.004018 / 0.011008 (-0.006991) | 0.064436 / 0.038508 (0.025928) | 0.072365 / 0.023109 (0.049256) | 0.387532 / 0.275898 (0.111634) | 0.418175 / 0.323480 (0.094695) | 0.005453 / 0.007986 (-0.002533) | 0.003368 / 0.004328 (-0.000961) | 0.064896 / 0.004250 (0.060645) | 0.057018 / 0.037052 (0.019966) | 0.406596 / 0.258489 (0.148107) | 0.431194 / 0.293841 (0.137353) | 0.031788 / 0.128546 (-0.096759) | 0.008532 / 0.075646 (-0.067114) | 0.070605 / 0.419271 (-0.348666) | 0.053317 / 0.043533 (0.009785) | 0.391930 / 0.255139 (0.136791) | 0.406071 / 0.283200 (0.122872) | 0.028652 / 0.141683 (-0.113030) | 1.487677 / 1.452155 (0.035522) | 1.546071 / 1.492716 (0.053355) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.220063 / 0.018006 (0.202056) | 0.441111 / 0.000490 (0.440621) | 0.006066 / 0.000200 (0.005867) | 0.000084 / 0.000054 (0.000030) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.035179 / 0.037411 (-0.002232) | 0.096745 / 0.014526 (0.082219) | 0.108171 / 0.176557 (-0.068386) | 0.164590 / 0.737135 (-0.572545) | 0.109425 / 0.296338 (-0.186913) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.408101 / 0.215209 (0.192892) | 4.062961 / 2.077655 (1.985306) | 2.101849 / 1.504120 (0.597730) | 1.935919 / 1.541195 (0.394724) | 1.993749 / 1.468490 (0.525259) | 0.487788 / 4.584777 (-4.096989) | 3.533972 / 3.745712 (-0.211740) | 3.218448 / 5.269862 (-2.051414) | 2.002322 / 4.565676 (-2.563355) | 0.057371 / 0.424275 (-0.366904) | 0.007704 / 0.007607 (0.000097) | 0.491695 / 0.226044 (0.265650) | 4.905009 / 2.268929 (2.636080) | 2.597879 / 55.444624 (-52.846745) | 2.252086 / 6.876477 (-4.624391) | 2.434439 / 2.142072 (0.292367) | 0.583071 / 4.805227 (-4.222156) | 0.133765 / 6.500664 (-6.366899) | 0.061276 / 0.075469 (-0.014193) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.403111 / 1.841788 (-0.438676) | 19.218886 / 8.074308 (11.144578) | 13.981775 / 10.191392 (3.790383) | 0.167784 / 0.680424 (-0.512640) | 0.018401 / 0.534201 (-0.515800) | 0.392038 / 0.579283 (-0.187245) | 0.414776 / 0.434364 (-0.019587) | 0.476221 / 0.540337 (-0.064117) | 0.632724 / 1.386936 (-0.754212) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#420dbd92c42840d6c91ecf5d3560c6799ee0cca1 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007595 / 0.011353 (-0.003758) | 0.004540 / 0.011008 (-0.006468) | 0.099350 / 0.038508 (0.060842) | 0.087062 / 0.023109 (0.063953) | 0.415980 / 0.275898 (0.140082) | 0.466390 / 0.323480 (0.142910) | 0.005958 / 0.007986 (-0.002027) | 0.003671 / 0.004328 (-0.000657) | 0.075714 / 0.004250 (0.071463) | 0.066062 / 0.037052 (0.029010) | 0.426527 / 0.258489 (0.168038) | 0.473282 / 0.293841 (0.179441) | 0.035669 / 0.128546 (-0.092878) | 0.009729 / 0.075646 (-0.065918) | 0.344035 / 0.419271 (-0.075237) | 0.061153 / 0.043533 (0.017620) | 0.428607 / 0.255139 (0.173468) | 0.445951 / 0.283200 (0.162752) | 0.026373 / 0.141683 (-0.115310) | 1.788725 / 1.452155 (0.336570) | 1.871055 / 1.492716 (0.378339) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.230606 / 0.018006 (0.212600) | 0.489835 / 0.000490 (0.489345) | 0.005669 / 0.000200 (0.005469) | 0.000100 / 0.000054 (0.000045) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032197 / 0.037411 (-0.005214) | 0.099571 / 0.014526 (0.085045) | 0.112686 / 0.176557 (-0.063871) | 0.179478 / 0.737135 (-0.557658) | 0.112670 / 0.296338 (-0.183668) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.449606 / 0.215209 (0.234397) | 4.503356 / 2.077655 (2.425701) | 2.190480 / 1.504120 (0.686361) | 1.986054 / 1.541195 (0.444860) | 2.071594 / 1.468490 (0.603104) | 0.566301 / 4.584777 (-4.018475) | 4.088460 / 3.745712 (0.342748) | 4.840100 / 5.269862 (-0.429761) | 2.857697 / 4.565676 (-1.707980) | 0.066718 / 0.424275 (-0.357557) | 0.008642 / 0.007607 (0.001034) | 0.539785 / 0.226044 (0.313740) | 5.383252 / 2.268929 (3.114323) | 2.878177 / 55.444624 (-52.566447) | 2.374577 / 6.876477 (-4.501899) | 2.590500 / 2.142072 (0.448428) | 0.675196 / 4.805227 (-4.130031) | 0.153544 / 6.500664 (-6.347120) | 0.070958 / 0.075469 (-0.004511) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.490403 / 1.841788 (-0.351385) | 22.085740 / 8.074308 (14.011432) | 16.588093 / 10.191392 (6.396701) | 0.188598 / 0.680424 (-0.491826) | 0.021567 / 0.534201 (-0.512634) | 0.472594 / 0.579283 (-0.106689) | 0.472903 / 0.434364 (0.038539) | 0.545305 / 0.540337 (0.004968) | 0.736399 / 1.386936 (-0.650537) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007635 / 0.011353 (-0.003718) | 0.004731 / 0.011008 (-0.006277) | 0.076482 / 0.038508 (0.037974) | 0.083666 / 0.023109 (0.060557) | 0.469596 / 0.275898 (0.193698) | 0.493068 / 0.323480 (0.169588) | 0.006014 / 0.007986 (-0.001971) | 0.003902 / 0.004328 (-0.000426) | 0.077142 / 0.004250 (0.072891) | 0.064355 / 0.037052 (0.027303) | 0.468859 / 0.258489 (0.210370) | 0.504002 / 0.293841 (0.210161) | 0.037606 / 0.128546 (-0.090940) | 0.010141 / 0.075646 (-0.065505) | 0.083790 / 0.419271 (-0.335482) | 0.060923 / 0.043533 (0.017390) | 0.464752 / 0.255139 (0.209613) | 0.500464 / 0.283200 (0.217264) | 0.031183 / 0.141683 (-0.110499) | 1.779294 / 1.452155 (0.327139) | 1.870848 / 1.492716 (0.378131) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.246567 / 0.018006 (0.228560) | 0.477182 / 0.000490 (0.476693) | 0.000426 / 0.000200 (0.000226) | 0.000067 / 0.000054 (0.000013) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.035377 / 0.037411 (-0.002034) | 0.106042 / 0.014526 (0.091516) | 0.119237 / 0.176557 (-0.057320) | 0.182145 / 0.737135 (-0.554991) | 0.119537 / 0.296338 (-0.176801) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.491352 / 0.215209 (0.276143) | 4.824220 / 2.077655 (2.746565) | 2.652039 / 1.504120 (1.147919) | 2.535310 / 1.541195 (0.994116) | 2.620009 / 1.468490 (1.151519) | 0.567865 / 4.584777 (-4.016912) | 4.158795 / 3.745712 (0.413082) | 6.042582 / 5.269862 (0.772721) | 3.957193 / 4.565676 (-0.608484) | 0.066647 / 0.424275 (-0.357628) | 0.008893 / 0.007607 (0.001285) | 0.570137 / 0.226044 (0.344093) | 5.687126 / 2.268929 (3.418198) | 3.137605 / 55.444624 (-52.307019) | 2.655979 / 6.876477 (-4.220498) | 2.893338 / 2.142072 (0.751265) | 0.698388 / 4.805227 (-4.106840) | 0.154897 / 6.500664 (-6.345767) | 0.071208 / 0.075469 (-0.004261) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.619346 / 1.841788 (-0.222441) | 22.782510 / 8.074308 (14.708202) | 16.317395 / 10.191392 (6.126003) | 0.197630 / 0.680424 (-0.482794) | 0.021795 / 0.534201 (-0.512406) | 0.466982 / 0.579283 (-0.112302) | 0.468609 / 0.434364 (0.034245) | 0.574380 / 0.540337 (0.034043) | 0.759827 / 1.386936 (-0.627109) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#8c1c5d8268ae59a0dcaea47da825e87c3f9528b4 \"CML watermark\")\n" ]

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[ "When the process starts to hang, can you interrupt it with CTRL + C and paste the error stack trace here? ", "Thanks @mariosasko for your prompt response, here's the stack trace:\r\n\r\n```\r\nKeyboardInterrupt Traceback (most recent call last)\r\nCell In[12], line 4\r\n 2 t = time.time()\r\n 3 iter_ = 0\r\n----> 4 for batch in train_dataloader:\r\n 5 #batch_proc = streaming_obj.collect_streaming_data_batch(batch)\r\n 6 iter_ += 1\r\n 8 if iter_ == 1:\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/torch/utils/data/dataloader.py:634, in _BaseDataLoaderIter.__next__(self)\r\n 631 if self._sampler_iter is None:\r\n 632 # TODO(https://github.com/pytorch/pytorch/issues/76750)\r\n 633 self._reset() # type: ignore[call-arg]\r\n--> 634 data = self._next_data()\r\n 635 self._num_yielded += 1\r\n 636 if self._dataset_kind == _DatasetKind.Iterable and \\\r\n 637 self._IterableDataset_len_called is not None and \\\r\n 638 self._num_yielded > self._IterableDataset_len_called:\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/torch/utils/data/dataloader.py:678, in _SingleProcessDataLoaderIter._next_data(self)\r\n 676 def _next_data(self):\r\n 677 index = self._next_index() # may raise StopIteration\r\n--> 678 data = self._dataset_fetcher.fetch(index) # may raise StopIteration\r\n 679 if self._pin_memory:\r\n 680 data = _utils.pin_memory.pin_memory(data, self._pin_memory_device)\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/torch/utils/data/_utils/fetch.py:32, in _IterableDatasetFetcher.fetch(self, possibly_batched_index)\r\n 30 for _ in possibly_batched_index:\r\n 31 try:\r\n---> 32 data.append(next(self.dataset_iter))\r\n 33 except StopIteration:\r\n 34 self.ended = True\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/datasets/iterable_dataset.py:1353, in IterableDataset.__iter__(self)\r\n 1350 yield formatter.format_row(pa_table)\r\n 1351 return\r\n-> 1353 for key, example in ex_iterable:\r\n 1354 if self.features:\r\n 1355 # `IterableDataset` automatically fills missing columns with None.\r\n 1356 # This is done with `_apply_feature_types_on_example`.\r\n 1357 example = _apply_feature_types_on_example(\r\n 1358 example, self.features, token_per_repo_id=self._token_per_repo_id\r\n 1359 )\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/datasets/iterable_dataset.py:956, in BufferShuffledExamplesIterable.__iter__(self)\r\n 954 # this is the shuffle buffer that we keep in memory\r\n 955 mem_buffer = []\r\n--> 956 for x in self.ex_iterable:\r\n 957 if len(mem_buffer) == buffer_size: # if the buffer is full, pick and example from it\r\n 958 i = next(indices_iterator)\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/datasets/iterable_dataset.py:296, in ShuffledDataSourcesArrowExamplesIterable.__iter__(self)\r\n 294 for key, pa_table in self.generate_tables_fn(**kwargs_with_shuffled_shards):\r\n 295 for pa_subtable in pa_table.to_reader(max_chunksize=config.ARROW_READER_BATCH_SIZE_IN_DATASET_ITER):\r\n--> 296 formatted_batch = formatter.format_batch(pa_subtable)\r\n 297 for example in _batch_to_examples(formatted_batch):\r\n 298 yield key, example\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/datasets/formatting/formatting.py:448, in PythonFormatter.format_batch(self, pa_table)\r\n 446 if self.lazy:\r\n 447 return LazyBatch(pa_table, self)\r\n--> 448 batch = self.python_arrow_extractor().extract_batch(pa_table)\r\n 449 batch = self.python_features_decoder.decode_batch(batch)\r\n 450 return batch\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/datasets/formatting/formatting.py:150, in PythonArrowExtractor.extract_batch(self, pa_table)\r\n 149 def extract_batch(self, pa_table: pa.Table) -> dict:\r\n--> 150 return pa_table.to_pydict()\r\n\r\nKeyboardInterrupt: \r\n```\r\n", "Update: If i let it run, it eventually fails with:\r\n\r\n```\r\nRuntimeError Traceback (most recent call last)\r\nCell In[16], line 4\r\n 2 t = time.time()\r\n 3 iter_ = 0\r\n----> 4 for batch in train_dataloader:\r\n 5 #batch_proc = streaming_obj.collect_streaming_data_batch(batch)\r\n 6 iter_ += 1\r\n 8 if iter_ == 1:\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/torch/utils/data/dataloader.py:634, in _BaseDataLoaderIter.__next__(self)\r\n 631 if self._sampler_iter is None:\r\n 632 # TODO(https://github.com/pytorch/pytorch/issues/76750)\r\n 633 self._reset() # type: ignore[call-arg]\r\n--> 634 data = self._next_data()\r\n 635 self._num_yielded += 1\r\n 636 if self._dataset_kind == _DatasetKind.Iterable and \\\r\n 637 self._IterableDataset_len_called is not None and \\\r\n 638 self._num_yielded > self._IterableDataset_len_called:\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/torch/utils/data/dataloader.py:678, in _SingleProcessDataLoaderIter._next_data(self)\r\n 676 def _next_data(self):\r\n 677 index = self._next_index() # may raise StopIteration\r\n--> 678 data = self._dataset_fetcher.fetch(index) # may raise StopIteration\r\n 679 if self._pin_memory:\r\n 680 data = _utils.pin_memory.pin_memory(data, self._pin_memory_device)\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/torch/utils/data/_utils/fetch.py:32, in _IterableDatasetFetcher.fetch(self, possibly_batched_index)\r\n 30 for _ in possibly_batched_index:\r\n 31 try:\r\n---> 32 data.append(next(self.dataset_iter))\r\n 33 except StopIteration:\r\n 34 self.ended = True\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/datasets/iterable_dataset.py:1360, in IterableDataset.__iter__(self)\r\n 1354 if self.features:\r\n 1355 # `IterableDataset` automatically fills missing columns with None.\r\n 1356 # This is done with `_apply_feature_types_on_example`.\r\n 1357 example = _apply_feature_types_on_example(\r\n 1358 example, self.features, token_per_repo_id=self._token_per_repo_id\r\n 1359 )\r\n-> 1360 yield format_dict(example) if format_dict else example\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/datasets/formatting/torch_formatter.py:85, in TorchFormatter.recursive_tensorize(self, data_struct)\r\n 84 def recursive_tensorize(self, data_struct: dict):\r\n---> 85 return map_nested(self._recursive_tensorize, data_struct, map_list=False)\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/datasets/utils/py_utils.py:463, in map_nested(function, data_struct, dict_only, map_list, map_tuple, map_numpy, num_proc, parallel_min_length, types, disable_tqdm, desc)\r\n 461 num_proc = 1\r\n 462 if num_proc != -1 and num_proc <= 1 or len(iterable) < parallel_min_length:\r\n--> 463 mapped = [\r\n 464 _single_map_nested((function, obj, types, None, True, None))\r\n 465 for obj in logging.tqdm(iterable, disable=disable_tqdm, desc=desc)\r\n 466 ]\r\n 467 else:\r\n 468 mapped = parallel_map(function, iterable, num_proc, types, disable_tqdm, desc, _single_map_nested)\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/datasets/utils/py_utils.py:464, in <listcomp>(.0)\r\n 461 num_proc = 1\r\n 462 if num_proc != -1 and num_proc <= 1 or len(iterable) < parallel_min_length:\r\n 463 mapped = [\r\n--> 464 _single_map_nested((function, obj, types, None, True, None))\r\n 465 for obj in logging.tqdm(iterable, disable=disable_tqdm, desc=desc)\r\n 466 ]\r\n 467 else:\r\n 468 mapped = parallel_map(function, iterable, num_proc, types, disable_tqdm, desc, _single_map_nested)\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/datasets/utils/py_utils.py:366, in _single_map_nested(args)\r\n 364 # Singleton first to spare some computation\r\n 365 if not isinstance(data_struct, dict) and not isinstance(data_struct, types):\r\n--> 366 return function(data_struct)\r\n 368 # Reduce logging to keep things readable in multiprocessing with tqdm\r\n 369 if rank is not None and logging.get_verbosity() < logging.WARNING:\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/datasets/formatting/torch_formatter.py:82, in TorchFormatter._recursive_tensorize(self, data_struct)\r\n 80 elif isinstance(data_struct, (list, tuple)):\r\n 81 return self._consolidate([self.recursive_tensorize(substruct) for substruct in data_struct])\r\n---> 82 return self._tensorize(data_struct)\r\n\r\nFile ~/anaconda3/envs/pytorch_p310/lib/python3.10/site-packages/datasets/formatting/torch_formatter.py:68, in TorchFormatter._tensorize(self, value)\r\n 66 if isinstance(value, PIL.Image.Image):\r\n 67 value = np.asarray(value)\r\n---> 68 return torch.tensor(value, **{**default_dtype, **self.torch_tensor_kwargs})\r\n\r\nRuntimeError: Could not infer dtype of decimal.Decimal\r\n```", "PyTorch tensors cannot store `Decimal` objects. Casting the column with decimals to `float` should fix the issue.", "I already have cast in collate_fn, in which I perform .astype(float) for each numerical field.\r\nOn the same instance, I installed a conda env with python 3.6, and this works well.\r\n\r\nSample:\r\n\r\n```\r\ndef streaming_data_collate_fn(batch):\r\n df = pd.DataFrame.from_dict(batch)\r\n feat_vals = torch.FloatTensor(np.nan_to_num(np.array(df[feats].astype(float))))\r\n\r\n```", "`collate_fn` is applied after the `torch` formatting step, so I think the only option when working with an `IterableDataset` is to remove the `with_format` call and perform the conversion from Python values to PyTorch tensors in `collate_fn`. The standard `Dataset` supports `with_format(\"numpy\")`, which should make this conversion faster.", "Thanks! \r\nPython 3.10 conda-env: After replacing with_format(\"torch\") with with_format(\"numpy\"), the error went away. However, it was still taking over 2 minutes to load a very small batch of 64 samples with num_workers set to 32. Once I removed with_format call altogether, it is finishing in 11 seconds.\r\n\r\nPython 3.6 based conda-env: When I switch the kernel , neither of the above work, and with_format(\"torch\") is the only thing that works, and executes in 1.6 seconds.\r\n\r\nI feel something else is also amiss here.", "Can you share the `datasets` and `torch` versions installed in these conda envs?\r\n\r\n> Once I removed with_format call altogether, it is finishing in 11 seconds.\r\n\r\nHmm, that's surprising. What are your dataset's `.features`?", "Python 3.6: \r\ndatasets.__version__ 2.4.0\r\ntorch.__version__ 1.10.1+cu102\r\n\r\nPython 3.10:\r\ndatasets.__version__ 2.14.0\r\ntorch.__version__ 2.0.0\r\n\r\nAnonymized features are of the form (subset shown here):\r\n{\r\n'string_feature_i': Value(dtype='string', id=None),\r\n'numerical_feature_i': Value(dtype='decimal128(38, 0)', id=None),\r\n'numerical_feature_series_i': Sequence(feature=Value(dtype='float64', id=None), length=-1, id=None),\r\n}\r\n\r\n\r\nThere is no output from .features in python 3.6 kernel BTW.", "One more thing, in python 3.10 based kernel, interestingly increasing num_workers seem to be increasing the runtime of iterating I was trying out. In python 3.10 kernel execution, I do not even see multiple CPU cores spiking unlike in 3.6.\r\n\r\n512 batch size on 32 workers executes in 2.4 seconds on python 3.6 kernel, while it takes ~118 seconds on 3.10!", "**Update**: It seems the latency part is more of a multiprocessing issue with torch and some host specific issue, and I had to scourge through relevant pytorch issues, when I stumbled across these threads:\r\n1. https://github.com/pytorch/pytorch/issues/102494\r\n2. https://github.com/pytorch/pytorch/issues/102269\r\n3. https://github.com/pytorch/pytorch/issues/99625\r\n\r\nOut of the suggested solutions, the one that worked in my case was:\r\n```\r\nos.environ['KMP_AFFINITY'] = \"disabled\"\r\n```\r\nIt is working for now, though I have no clue why, just I hope it does not get stuck when I do actual model training, will update by tomorrow.\r\n\r\n\r\n", "I'm facing a similar situation in the local VS Code. \r\n\r\nDatasets version 2.14.4\r\nTorch 2.0.1+cu118\r\n\r\nSame code runs without issues in Colab\r\n\r\n```\r\nfrom datasets import load_dataset\r\n\r\ndataset = load_dataset(\"Supermaxman/esa-hubble\", streaming=True)\r\nsample = next(iter(dataset[\"train\"]))\r\n```\r\n\r\nis stuck for minutes. If I interrupt, I get\r\n\r\n```\r\n---------------------------------------------------------------------------\r\nKeyboardInterrupt Traceback (most recent call last)\r\nCell In[5], line 5\r\n 1 from datasets import load_dataset\r\n 3 dataset = load_dataset(\"Supermaxman/esa-hubble\", streaming=True)\r\n----> 5 sample = next(iter(dataset[\"train\"]))\r\n 6 print(sample[\"text\"])\r\n 7 sample[\"image\"]\r\n\r\nFile [~/miniconda3/envs/book/lib/python3.10/site-packages/datasets/iterable_dataset.py:1353](https://file+.vscode-resource.vscode-cdn.net/home/osanseviero/Desktop/workspace/genai/nbs/~/miniconda3/envs/book/lib/python3.10/site-packages/datasets/iterable_dataset.py:1353), in IterableDataset.__iter__(self)\r\n 1350 yield formatter.format_row(pa_table)\r\n 1351 return\r\n-> 1353 for key, example in ex_iterable:\r\n 1354 if self.features:\r\n 1355 # `IterableDataset` automatically fills missing columns with None.\r\n 1356 # This is done with `_apply_feature_types_on_example`.\r\n 1357 example = _apply_feature_types_on_example(\r\n 1358 example, self.features, token_per_repo_id=self._token_per_repo_id\r\n 1359 )\r\n\r\nFile [~/miniconda3/envs/book/lib/python3.10/site-packages/datasets/iterable_dataset.py:255](https://file+.vscode-resource.vscode-cdn.net/home/osanseviero/Desktop/workspace/genai/nbs/~/miniconda3/envs/book/lib/python3.10/site-packages/datasets/iterable_dataset.py:255), in ArrowExamplesIterable.__iter__(self)\r\n 253 def __iter__(self):\r\n 254 formatter = PythonFormatter()\r\n--> 255 for key, pa_table in self.generate_tables_fn(**self.kwargs):\r\n 256 for pa_subtable in pa_table.to_reader(max_chunksize=config.ARROW_READER_BATCH_SIZE_IN_DATASET_ITER):\r\n...\r\n-> 1130 return self._sslobj.read(len, buffer)\r\n 1131 else:\r\n 1132 return self._sslobj.read(len)\r\n```", "@osanseviero I assume the `self._sslobj.read(len, buffer)` line comes from the built-in `ssl` module, so this probably has something to do with your network. Please open a new issue with the full stack trace in case you haven't resolved this yet.", "Thank you reporting this and sharing the solution, I ran into this as well!", "Ran into same issue after upgrading to pytorch-2.0. Disabling KMP_AFFINITY as mentioned above worked for me. Thanks!\r\n" ]

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[ "Currently, it's not possible to efficiently resume streaming after an error. Eventually, we plan to support this for Parquet (see https://github.com/huggingface/datasets/issues/5380). ", "Ok thank you for your answer", "I'm closing this as a duplicate of #5380" ]

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[ "The `MAX_MAP_BATCH_SIZE = 1_000_000_000` hack is bad as it loads the entire dataset into RAM when performing `.map`. Instead, it's best to use `.iter(batch_size)` to iterate over the data batches and compute `mean` for each column. (`stddev` can be computed in another pass).\r\n\r\nAlso, these arrays are big, so it makes sense to reduce `batch_size`/`writer_batch_size` to avoid RAM issues and slow IO.", "Hi @mariosasko !\r\n\r\nI agree, it's an ugly hack, but it was convenient since the resulting `mean_std` could be cached by the library. For my large dataset (which doesn't fit in RAM), I'm actually using something similar to what you suggested. I got rid of the first mapping in the above scripts and replaced it with an iterator, but the issue with the second mapping still persists.", "Have you tried to reduce `batch_size`/`writer_batch_size` in the 2nd `.map`? Also, can you interrupt the process when it gets stuck and share the error stack trace?", "I think `batch_size/writer_batch_size` is already at its lowest in the 2nd `.map` since `batched=False` implies `batch_size=1` and `len(ds) = 1000 = writer_batch_size`.\r\n\r\nHere is also a bunch of stack traces when I interrupted the process:\r\n\r\n<details>\r\n <summary>stack trace 1</summary>\r\n\r\n```python\r\n(pyg)[d623204@rosetta-bigviz01 stage-laurent-f]$ python src/random_scripts/uses_random_data.py \r\nFound cached dataset random_data (/local_scratch/lfainsin/.cache/huggingface/datasets/random_data/default/0.0.0/444e214e1d0e6298cfd3f2368323ec37073dc1439f618e19395b1f421c69b066)\r\nApplying mean/std: 97%|████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████ | 967/1000 [00:01<00:00, 534.87 examples/s]Traceback (most recent call last): \r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 179, in __arrow_array__\r\n storage = to_pyarrow_listarray(data, pa_type)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 1466, in to_pyarrow_listarray\r\n return pa.array(data, pa_type.storage_dtype)\r\n File \"pyarrow/array.pxi\", line 320, in pyarrow.lib.array\r\n File \"pyarrow/array.pxi\", line 39, in pyarrow.lib._sequence_to_array\r\n File \"pyarrow/error.pxi\", line 144, in pyarrow.lib.pyarrow_internal_check_status\r\n File \"pyarrow/error.pxi\", line 123, in pyarrow.lib.check_status\r\npyarrow.lib.ArrowTypeError: Could not convert tensor([[-1.0273, -0.8037, -0.6860],\r\n [-0.5034, -1.2685, -0.0558],\r\n [-1.0908, -1.1820, -0.3178],\r\n ...,\r\n [-0.8171, 0.1781, -0.5903],\r\n [ 0.4370, 1.9305, 0.5899],\r\n [-0.1426, 0.9053, -1.7559]]) with type Tensor: was not a sequence or recognized null for conversion to list type\r\n\r\nDuring handling of the above exception, another exception occurred:\r\n\r\nTraceback (most recent call last):\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_dataset.py\", line 3449, in _map_single\r\n writer.write(example)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 490, in write\r\n self.write_examples_on_file()\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 448, in write_examples_on_file\r\n self.write_batch(batch_examples=batch_examples)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 553, in write_batch\r\n arrays.append(pa.array(typed_sequence))\r\n File \"pyarrow/array.pxi\", line 236, in pyarrow.lib.array\r\n File \"pyarrow/array.pxi\", line 110, in pyarrow.lib._handle_arrow_array_protocol\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 223, in __arrow_array__\r\n return pa.array(cast_to_python_objects(data, only_1d_for_numpy=True))\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 446, in cast_to_python_objects\r\n return _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 407, in _cast_to_python_objects\r\n [\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 408, in <listcomp>\r\n _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 319, in _cast_to_python_objects\r\n [\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 320, in <listcomp>\r\n _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 263, in _cast_to_python_objects\r\n def _cast_to_python_objects(obj: Any, only_1d_for_numpy: bool, optimize_list_casting: bool) -> Tuple[Any, bool]:\r\nKeyboardInterrupt\r\n\r\nDuring handling of the above exception, another exception occurred:\r\n\r\nTraceback (most recent call last):\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 179, in __arrow_array__\r\n storage = to_pyarrow_listarray(data, pa_type)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 1466, in to_pyarrow_listarray\r\n return pa.array(data, pa_type.storage_dtype)\r\n File \"pyarrow/array.pxi\", line 320, in pyarrow.lib.array\r\n File \"pyarrow/array.pxi\", line 39, in pyarrow.lib._sequence_to_array\r\n File \"pyarrow/error.pxi\", line 144, in pyarrow.lib.pyarrow_internal_check_status\r\n File \"pyarrow/error.pxi\", line 123, in pyarrow.lib.check_status\r\npyarrow.lib.ArrowTypeError: Could not convert tensor([[-1.0273, -0.8037, -0.6860],\r\n [-0.5034, -1.2685, -0.0558],\r\n [-1.0908, -1.1820, -0.3178],\r\n ...,\r\n [-0.8171, 0.1781, -0.5903],\r\n [ 0.4370, 1.9305, 0.5899],\r\n [-0.1426, 0.9053, -1.7559]]) with type Tensor: was not a sequence or recognized null for conversion to list type\r\n\r\nDuring handling of the above exception, another exception occurred:\r\n\r\nTraceback (most recent call last):\r\n File \"/gpfs_new/data/users/lfainsin/stage-laurent-f/src/random_scripts/uses_random_data.py\", line 62, in <module>\r\n ds_normalized = ds.map(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_dataset.py\", line 580, in wrapper\r\n out: Union[\"Dataset\", \"DatasetDict\"] = func(self, *args, **kwargs)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_dataset.py\", line 545, in wrapper\r\n out: Union[\"Dataset\", \"DatasetDict\"] = func(self, *args, **kwargs)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_dataset.py\", line 3087, in map\r\n for rank, done, content in Dataset._map_single(**dataset_kwargs):\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_dataset.py\", line 3492, in _map_single\r\n writer.finalize()\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 584, in finalize\r\n self.write_examples_on_file()\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 448, in write_examples_on_file\r\n self.write_batch(batch_examples=batch_examples)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 553, in write_batch\r\n arrays.append(pa.array(typed_sequence))\r\n File \"pyarrow/array.pxi\", line 236, in pyarrow.lib.array\r\n File \"pyarrow/array.pxi\", line 110, in pyarrow.lib._handle_arrow_array_protocol\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 223, in __arrow_array__\r\n return pa.array(cast_to_python_objects(data, only_1d_for_numpy=True))\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 446, in cast_to_python_objects\r\n return _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 407, in _cast_to_python_objects\r\n [\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 408, in <listcomp>\r\n _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 319, in _cast_to_python_objects\r\n [\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 319, in <listcomp>\r\n [\r\nKeyboardInterrupt\r\n```\r\n\r\n</details>\r\n\r\n<details>\r\n <summary>stack trace 2</summary>\r\n\r\n```python\r\n(pyg)[d623204@rosetta-bigviz01 stage-laurent-f]$ python src/random_scripts/uses_random_data.py \r\nFound cached dataset random_data (/local_scratch/lfainsin/.cache/huggingface/datasets/random_data/default/0.0.0/444e214e1d0e6298cfd3f2368323ec37073dc1439f618e19395b1f421c69b066)\r\nApplying mean/std: 99%|███████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████▏ | 988/1000 [00:20<00:00, 526.19 examples/s]Applying mean/std: 100%|█████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████▊| 999/1000 [00:21<00:00, 9.66 examples/s]Traceback (most recent call last): \r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 179, in __arrow_array__\r\n storage = to_pyarrow_listarray(data, pa_type)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 1466, in to_pyarrow_listarray\r\n return pa.array(data, pa_type.storage_dtype)\r\n File \"pyarrow/array.pxi\", line 320, in pyarrow.lib.array\r\n File \"pyarrow/array.pxi\", line 39, in pyarrow.lib._sequence_to_array\r\n File \"pyarrow/error.pxi\", line 144, in pyarrow.lib.pyarrow_internal_check_status\r\n File \"pyarrow/error.pxi\", line 123, in pyarrow.lib.check_status\r\npyarrow.lib.ArrowTypeError: Could not convert tensor([[-1.0273, -0.8037, -0.6860],\r\n [-0.5034, -1.2685, -0.0558],\r\n [-1.0908, -1.1820, -0.3178],\r\n ...,\r\n [-0.8171, 0.1781, -0.5903],\r\n [ 0.4370, 1.9305, 0.5899],\r\n [-0.1426, 0.9053, -1.7559]]) with type Tensor: was not a sequence or recognized null for conversion to list type\r\n\r\nDuring handling of the above exception, another exception occurred:\r\n\r\nTraceback (most recent call last):\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_dataset.py\", line 3449, in _map_single\r\n writer.write(example)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 490, in write\r\n self.write_examples_on_file()\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 448, in write_examples_on_file\r\n self.write_batch(batch_examples=batch_examples)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 553, in write_batch\r\n arrays.append(pa.array(typed_sequence))\r\n File \"pyarrow/array.pxi\", line 236, in pyarrow.lib.array\r\n File \"pyarrow/array.pxi\", line 110, in pyarrow.lib._handle_arrow_array_protocol\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 223, in __arrow_array__\r\n return pa.array(cast_to_python_objects(data, only_1d_for_numpy=True))\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 446, in cast_to_python_objects\r\n return _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 407, in _cast_to_python_objects\r\n [\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 408, in <listcomp>\r\n _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 319, in _cast_to_python_objects\r\n [\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 320, in <listcomp>\r\n _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 263, in _cast_to_python_objects\r\n def _cast_to_python_objects(obj: Any, only_1d_for_numpy: bool, optimize_list_casting: bool) -> Tuple[Any, bool]:\r\nKeyboardInterrupt\r\n\r\nDuring handling of the above exception, another exception occurred:\r\n\r\nTraceback (most recent call last):\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 179, in __arrow_array__\r\n storage = to_pyarrow_listarray(data, pa_type)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 1466, in to_pyarrow_listarray\r\n return pa.array(data, pa_type.storage_dtype)\r\n File \"pyarrow/array.pxi\", line 320, in pyarrow.lib.array\r\n File \"pyarrow/array.pxi\", line 39, in pyarrow.lib._sequence_to_array\r\n File \"pyarrow/error.pxi\", line 144, in pyarrow.lib.pyarrow_internal_check_status\r\n File \"pyarrow/error.pxi\", line 123, in pyarrow.lib.check_status\r\npyarrow.lib.ArrowTypeError: Could not convert tensor([[-1.0273, -0.8037, -0.6860],\r\n [-0.5034, -1.2685, -0.0558],\r\n [-1.0908, -1.1820, -0.3178],\r\n ...,\r\n [-0.8171, 0.1781, -0.5903],\r\n [ 0.4370, 1.9305, 0.5899],\r\n [-0.1426, 0.9053, -1.7559]]) with type Tensor: was not a sequence or recognized null for conversion to list type\r\n\r\nDuring handling of the above exception, another exception occurred:\r\n\r\nTraceback (most recent call last):\r\n File \"/gpfs_new/data/users/lfainsin/stage-laurent-f/src/random_scripts/uses_random_data.py\", line 62, in <module>\r\n ds_normalized = ds.map(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_dataset.py\", line 580, in wrapper\r\n out: Union[\"Dataset\", \"DatasetDict\"] = func(self, *args, **kwargs)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_dataset.py\", line 545, in wrapper\r\n out: Union[\"Dataset\", \"DatasetDict\"] = func(self, *args, **kwargs)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_dataset.py\", line 3087, in map\r\n for rank, done, content in Dataset._map_single(**dataset_kwargs):\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_dataset.py\", line 3492, in _map_single\r\n writer.finalize()\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 584, in finalize\r\n self.write_examples_on_file()\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 448, in write_examples_on_file\r\n self.write_batch(batch_examples=batch_examples)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 553, in write_batch\r\n arrays.append(pa.array(typed_sequence))\r\n File \"pyarrow/array.pxi\", line 236, in pyarrow.lib.array\r\n File \"pyarrow/array.pxi\", line 110, in pyarrow.lib._handle_arrow_array_protocol\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 223, in __arrow_array__\r\n return pa.array(cast_to_python_objects(data, only_1d_for_numpy=True))\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 446, in cast_to_python_objects\r\n return _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 407, in _cast_to_python_objects\r\n [\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 408, in <listcomp>\r\n _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 319, in _cast_to_python_objects\r\n [\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 320, in <listcomp>\r\n _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 291, in _cast_to_python_objects\r\n if config.JAX_AVAILABLE and \"jax\" in sys.modules:\r\nKeyboardInterrupt\r\n```\r\n\r\n</details>\r\n\r\n<details>\r\n <summary>stack trace 3</summary>\r\n\r\n```python\r\n(pyg)[d623204@rosetta-bigviz01 stage-laurent-f]$ python src/random_scripts/uses_random_data.py \r\nFound cached dataset random_data (/local_scratch/lfainsin/.cache/huggingface/datasets/random_data/default/0.0.0/444e214e1d0e6298cfd3f2368323ec37073dc1439f618e19395b1f421c69b066)\r\nApplying mean/std: 99%|███████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████▎ | 989/1000 [00:01<00:00, 504.80 examples/s]Traceback (most recent call last): \r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 179, in __arrow_array__\r\n storage = to_pyarrow_listarray(data, pa_type)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 1466, in to_pyarrow_listarray\r\n return pa.array(data, pa_type.storage_dtype)\r\n File \"pyarrow/array.pxi\", line 320, in pyarrow.lib.array\r\n File \"pyarrow/array.pxi\", line 39, in pyarrow.lib._sequence_to_array\r\n File \"pyarrow/error.pxi\", line 144, in pyarrow.lib.pyarrow_internal_check_status\r\n File \"pyarrow/error.pxi\", line 123, in pyarrow.lib.check_status\r\npyarrow.lib.ArrowTypeError: Could not convert tensor([[-1.0273, -0.8037, -0.6860],\r\n [-0.5034, -1.2685, -0.0558],\r\n [-1.0908, -1.1820, -0.3178],\r\n ...,\r\n [-0.8171, 0.1781, -0.5903],\r\n [ 0.4370, 1.9305, 0.5899],\r\n [-0.1426, 0.9053, -1.7559]]) with type Tensor: was not a sequence or recognized null for conversion to list type\r\n\r\nDuring handling of the above exception, another exception occurred:\r\n\r\nTraceback (most recent call last):\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_dataset.py\", line 3449, in _map_single\r\n writer.write(example)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 490, in write\r\n self.write_examples_on_file()\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 448, in write_examples_on_file\r\n self.write_batch(batch_examples=batch_examples)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 553, in write_batch\r\n arrays.append(pa.array(typed_sequence))\r\n File \"pyarrow/array.pxi\", line 236, in pyarrow.lib.array\r\n File \"pyarrow/array.pxi\", line 110, in pyarrow.lib._handle_arrow_array_protocol\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 223, in __arrow_array__\r\n return pa.array(cast_to_python_objects(data, only_1d_for_numpy=True))\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 446, in cast_to_python_objects\r\n return _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 407, in _cast_to_python_objects\r\n [\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 408, in <listcomp>\r\n _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 319, in _cast_to_python_objects\r\n [\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 320, in <listcomp>\r\n _cast_to_python_objects(\r\nKeyboardInterrupt\r\n\r\nDuring handling of the above exception, another exception occurred:\r\n\r\nTraceback (most recent call last):\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 179, in __arrow_array__\r\n storage = to_pyarrow_listarray(data, pa_type)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 1466, in to_pyarrow_listarray\r\n return pa.array(data, pa_type.storage_dtype)\r\n File \"pyarrow/array.pxi\", line 320, in pyarrow.lib.array\r\n File \"pyarrow/array.pxi\", line 39, in pyarrow.lib._sequence_to_array\r\n File \"pyarrow/error.pxi\", line 144, in pyarrow.lib.pyarrow_internal_check_status\r\n File \"pyarrow/error.pxi\", line 123, in pyarrow.lib.check_status\r\npyarrow.lib.ArrowTypeError: Could not convert tensor([[-1.0273, -0.8037, -0.6860],\r\n [-0.5034, -1.2685, -0.0558],\r\n [-1.0908, -1.1820, -0.3178],\r\n ...,\r\n [-0.8171, 0.1781, -0.5903],\r\n [ 0.4370, 1.9305, 0.5899],\r\n [-0.1426, 0.9053, -1.7559]]) with type Tensor: was not a sequence or recognized null for conversion to list type\r\n\r\nDuring handling of the above exception, another exception occurred:\r\n\r\nTraceback (most recent call last):\r\n File \"/gpfs_new/data/users/lfainsin/stage-laurent-f/src/random_scripts/uses_random_data.py\", line 62, in <module>\r\n ds_normalized = ds.map(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_dataset.py\", line 580, in wrapper\r\n out: Union[\"Dataset\", \"DatasetDict\"] = func(self, *args, **kwargs)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_dataset.py\", line 545, in wrapper\r\n out: Union[\"Dataset\", \"DatasetDict\"] = func(self, *args, **kwargs)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_dataset.py\", line 3087, in map\r\n for rank, done, content in Dataset._map_single(**dataset_kwargs):\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_dataset.py\", line 3492, in _map_single\r\n writer.finalize()\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 584, in finalize\r\n self.write_examples_on_file()\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 448, in write_examples_on_file\r\n self.write_batch(batch_examples=batch_examples)\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 553, in write_batch\r\n arrays.append(pa.array(typed_sequence))\r\n File \"pyarrow/array.pxi\", line 236, in pyarrow.lib.array\r\n File \"pyarrow/array.pxi\", line 110, in pyarrow.lib._handle_arrow_array_protocol\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/arrow_writer.py\", line 223, in __arrow_array__\r\n return pa.array(cast_to_python_objects(data, only_1d_for_numpy=True))\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 446, in cast_to_python_objects\r\n return _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 407, in _cast_to_python_objects\r\n [\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 408, in <listcomp>\r\n _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 319, in _cast_to_python_objects\r\n [\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 320, in <listcomp>\r\n _cast_to_python_objects(\r\n File \"/local_scratch/lfainsin/.conda/envs/pyg/lib/python3.10/site-packages/datasets/features/features.py\", line 298, in _cast_to_python_objects\r\n if obj.ndim == 0:\r\nKeyboardInterrupt\r\n```\r\n\r\n</details>\r\n" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008191 / 0.011353 (-0.003162) | 0.004669 / 0.011008 (-0.006339) | 0.101315 / 0.038508 (0.062807) | 0.090235 / 0.023109 (0.067126) | 0.381265 / 0.275898 (0.105367) | 0.418266 / 0.323480 (0.094786) | 0.006292 / 0.007986 (-0.001693) | 0.003979 / 0.004328 (-0.000349) | 0.075946 / 0.004250 (0.071696) | 0.070678 / 0.037052 (0.033625) | 0.378006 / 0.258489 (0.119517) | 0.425825 / 0.293841 (0.131984) | 0.036325 / 0.128546 (-0.092221) | 0.009814 / 0.075646 (-0.065832) | 0.345687 / 0.419271 (-0.073584) | 0.063846 / 0.043533 (0.020313) | 0.386003 / 0.255139 (0.130864) | 0.400875 / 0.283200 (0.117675) | 0.027806 / 0.141683 (-0.113877) | 1.814810 / 1.452155 (0.362655) | 1.879897 / 1.492716 (0.387180) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.218684 / 0.018006 (0.200677) | 0.501715 / 0.000490 (0.501225) | 0.004808 / 0.000200 (0.004608) | 0.000093 / 0.000054 (0.000039) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.035494 / 0.037411 (-0.001917) | 0.100949 / 0.014526 (0.086423) | 0.114639 / 0.176557 (-0.061917) | 0.188908 / 0.737135 (-0.548227) | 0.115794 / 0.296338 (-0.180545) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.462537 / 0.215209 (0.247328) | 4.612469 / 2.077655 (2.534814) | 2.298065 / 1.504120 (0.793945) | 2.088738 / 1.541195 (0.547543) | 2.188072 / 1.468490 (0.719582) | 0.565412 / 4.584777 (-4.019364) | 4.180394 / 3.745712 (0.434681) | 3.848696 / 5.269862 (-1.421165) | 2.391381 / 4.565676 (-2.174296) | 0.067647 / 0.424275 (-0.356628) | 0.008847 / 0.007607 (0.001240) | 0.553288 / 0.226044 (0.327243) | 5.517962 / 2.268929 (3.249033) | 2.866622 / 55.444624 (-52.578002) | 2.439025 / 6.876477 (-4.437452) | 2.740156 / 2.142072 (0.598084) | 0.694796 / 4.805227 (-4.110431) | 0.159022 / 6.500664 (-6.341642) | 0.074471 / 0.075469 (-0.000998) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.534979 / 1.841788 (-0.306808) | 23.297273 / 8.074308 (15.222965) | 16.859178 / 10.191392 (6.667786) | 0.207594 / 0.680424 (-0.472830) | 0.021990 / 0.534201 (-0.512211) | 0.472059 / 0.579283 (-0.107224) | 0.497632 / 0.434364 (0.063268) | 0.565672 / 0.540337 (0.025335) | 0.772485 / 1.386936 (-0.614451) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007777 / 0.011353 (-0.003576) | 0.004679 / 0.011008 (-0.006329) | 0.077317 / 0.038508 (0.038809) | 0.087433 / 0.023109 (0.064324) | 0.437389 / 0.275898 (0.161491) | 0.479562 / 0.323480 (0.156082) | 0.006137 / 0.007986 (-0.001849) | 0.003938 / 0.004328 (-0.000390) | 0.074769 / 0.004250 (0.070518) | 0.066605 / 0.037052 (0.029553) | 0.454865 / 0.258489 (0.196376) | 0.485103 / 0.293841 (0.191262) | 0.036540 / 0.128546 (-0.092006) | 0.009983 / 0.075646 (-0.065664) | 0.083566 / 0.419271 (-0.335706) | 0.059527 / 0.043533 (0.015994) | 0.449154 / 0.255139 (0.194015) | 0.462542 / 0.283200 (0.179342) | 0.027581 / 0.141683 (-0.114102) | 1.776720 / 1.452155 (0.324565) | 1.847920 / 1.492716 (0.355204) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.246792 / 0.018006 (0.228786) | 0.494513 / 0.000490 (0.494024) | 0.004376 / 0.000200 (0.004176) | 0.000115 / 0.000054 (0.000061) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.037837 / 0.037411 (0.000426) | 0.112752 / 0.014526 (0.098226) | 0.121742 / 0.176557 (-0.054815) | 0.189365 / 0.737135 (-0.547770) | 0.124366 / 0.296338 (-0.171973) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.492890 / 0.215209 (0.277681) | 4.920270 / 2.077655 (2.842615) | 2.565350 / 1.504120 (1.061230) | 2.378679 / 1.541195 (0.837484) | 2.483794 / 1.468490 (1.015304) | 0.579623 / 4.584777 (-4.005154) | 4.195924 / 3.745712 (0.450212) | 3.903382 / 5.269862 (-1.366479) | 2.466884 / 4.565676 (-2.098793) | 0.064145 / 0.424275 (-0.360130) | 0.008695 / 0.007607 (0.001088) | 0.579300 / 0.226044 (0.353256) | 5.809064 / 2.268929 (3.540136) | 3.145393 / 55.444624 (-52.299232) | 2.832760 / 6.876477 (-4.043717) | 3.020460 / 2.142072 (0.878388) | 0.700235 / 4.805227 (-4.104992) | 0.161262 / 6.500664 (-6.339402) | 0.076484 / 0.075469 (0.001015) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.606504 / 1.841788 (-0.235284) | 23.747863 / 8.074308 (15.673555) | 17.281712 / 10.191392 (7.090320) | 0.203874 / 0.680424 (-0.476550) | 0.021839 / 0.534201 (-0.512362) | 0.472365 / 0.579283 (-0.106918) | 0.475150 / 0.434364 (0.040786) | 0.571713 / 0.540337 (0.031376) | 0.759210 / 1.386936 (-0.627726) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#c3a7fc003b1d181d8e8ece24d5ebd442ec5d6519 \"CML watermark\")\n", "> Some questions: won't this have an impact on downloading time, once we do not longer compress the payload? What is the advantage of this approach over the one with block_size: 0?\r\n\r\nSurely, but this prevents random access which is needed at multiple places in the code (eg to check the compression type).\r\nGithub isn't a good place for big files anyway so we should be fine" ]

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[ "This code behaves as expected on my local machine or in Colab. Which version of `soundfile` do you have installed? MP3 requires `soundfile>=0.12.1`.", "I upgraded the `soundfile` and it's working now! \r\nThanks @mariosasko for the help!" ]

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[ "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006616 / 0.011353 (-0.004737) | 0.003915 / 0.011008 (-0.007093) | 0.083271 / 0.038508 (0.044763) | 0.072595 / 0.023109 (0.049485) | 0.307224 / 0.275898 (0.031326) | 0.337244 / 0.323480 (0.013764) | 0.005296 / 0.007986 (-0.002690) | 0.003325 / 0.004328 (-0.001003) | 0.064589 / 0.004250 (0.060339) | 0.056369 / 0.037052 (0.019316) | 0.310829 / 0.258489 (0.052340) | 0.345563 / 0.293841 (0.051722) | 0.030551 / 0.128546 (-0.097995) | 0.008519 / 0.075646 (-0.067127) | 0.286368 / 0.419271 (-0.132903) | 0.052498 / 0.043533 (0.008966) | 0.308735 / 0.255139 (0.053596) | 0.329234 / 0.283200 (0.046034) | 0.022588 / 0.141683 (-0.119095) | 1.453135 / 1.452155 (0.000981) | 1.525956 / 1.492716 (0.033239) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.199417 / 0.018006 (0.181410) | 0.454621 / 0.000490 (0.454131) | 0.004928 / 0.000200 (0.004728) | 0.000079 / 0.000054 (0.000025) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.028436 / 0.037411 (-0.008975) | 0.083722 / 0.014526 (0.069196) | 0.095162 / 0.176557 (-0.081395) | 0.153434 / 0.737135 (-0.583702) | 0.099480 / 0.296338 (-0.196859) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.384647 / 0.215209 (0.169438) | 3.838406 / 2.077655 (1.760751) | 1.891267 / 1.504120 (0.387148) | 1.751432 / 1.541195 (0.210238) | 1.737443 / 1.468490 (0.268953) | 0.487758 / 4.584777 (-4.097019) | 3.635925 / 3.745712 (-0.109787) | 5.208718 / 5.269862 (-0.061144) | 3.029374 / 4.565676 (-1.536302) | 0.057613 / 0.424275 (-0.366662) | 0.007177 / 0.007607 (-0.000430) | 0.455596 / 0.226044 (0.229552) | 4.559969 / 2.268929 (2.291040) | 2.325321 / 55.444624 (-53.119303) | 2.034924 / 6.876477 (-4.841552) | 2.163869 / 2.142072 (0.021796) | 0.583477 / 4.805227 (-4.221750) | 0.132870 / 6.500664 (-6.367795) | 0.059618 / 0.075469 (-0.015851) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.263751 / 1.841788 (-0.578037) | 19.740004 / 8.074308 (11.665696) | 14.410980 / 10.191392 (4.219588) | 0.170367 / 0.680424 (-0.510057) | 0.018225 / 0.534201 (-0.515976) | 0.390101 / 0.579283 (-0.189182) | 0.404298 / 0.434364 (-0.030066) | 0.455295 / 0.540337 (-0.085043) | 0.621179 / 1.386936 (-0.765757) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006580 / 0.011353 (-0.004773) | 0.004078 / 0.011008 (-0.006930) | 0.065842 / 0.038508 (0.027334) | 0.074494 / 0.023109 (0.051385) | 0.403644 / 0.275898 (0.127746) | 0.430204 / 0.323480 (0.106724) | 0.005343 / 0.007986 (-0.002643) | 0.003366 / 0.004328 (-0.000963) | 0.064858 / 0.004250 (0.060607) | 0.056252 / 0.037052 (0.019200) | 0.412556 / 0.258489 (0.154067) | 0.434099 / 0.293841 (0.140258) | 0.031518 / 0.128546 (-0.097028) | 0.008543 / 0.075646 (-0.067104) | 0.071658 / 0.419271 (-0.347613) | 0.049962 / 0.043533 (0.006430) | 0.398511 / 0.255139 (0.143372) | 0.415908 / 0.283200 (0.132708) | 0.025011 / 0.141683 (-0.116672) | 1.492350 / 1.452155 (0.040195) | 1.552996 / 1.492716 (0.060280) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.204971 / 0.018006 (0.186964) | 0.439965 / 0.000490 (0.439475) | 0.002071 / 0.000200 (0.001872) | 0.000084 / 0.000054 (0.000029) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031673 / 0.037411 (-0.005738) | 0.087529 / 0.014526 (0.073004) | 0.099882 / 0.176557 (-0.076675) | 0.156994 / 0.737135 (-0.580141) | 0.101421 / 0.296338 (-0.194918) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.407480 / 0.215209 (0.192271) | 4.069123 / 2.077655 (1.991468) | 2.081288 / 1.504120 (0.577169) | 1.920367 / 1.541195 (0.379172) | 1.981053 / 1.468490 (0.512563) | 0.481995 / 4.584777 (-4.102782) | 3.546486 / 3.745712 (-0.199226) | 5.133150 / 5.269862 (-0.136712) | 3.056444 / 4.565676 (-1.509232) | 0.056650 / 0.424275 (-0.367625) | 0.007746 / 0.007607 (0.000139) | 0.490891 / 0.226044 (0.264847) | 4.902160 / 2.268929 (2.633232) | 2.564726 / 55.444624 (-52.879899) | 2.234988 / 6.876477 (-4.641489) | 2.387656 / 2.142072 (0.245583) | 0.576315 / 4.805227 (-4.228912) | 0.132065 / 6.500664 (-6.368599) | 0.060728 / 0.075469 (-0.014741) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.370568 / 1.841788 (-0.471220) | 19.883159 / 8.074308 (11.808851) | 14.442066 / 10.191392 (4.250674) | 0.150119 / 0.680424 (-0.530305) | 0.018359 / 0.534201 (-0.515842) | 0.394128 / 0.579283 (-0.185155) | 0.411697 / 0.434364 (-0.022667) | 0.460580 / 0.540337 (-0.079757) | 0.608490 / 1.386936 (-0.778446) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#035d0cf842b82b14059999baa78e8d158dfbed12 \"CML watermark\")\n", "_The documentation is not available anymore as the PR was closed or merged._", "merging now if you don't mind - this way I can make a patch release" ]

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[ "Version 2.3.2 is over one year old, so please use the latest release (2.14.0) to get the expected behavior. Version 2.3.2 does not contain some fixes we made to fix resolving hidden files/directories (starting with a dot)." ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007617 / 0.011353 (-0.003736) | 0.004580 / 0.011008 (-0.006428) | 0.100913 / 0.038508 (0.062405) | 0.087703 / 0.023109 (0.064594) | 0.424159 / 0.275898 (0.148261) | 0.467195 / 0.323480 (0.143715) | 0.006890 / 0.007986 (-0.001096) | 0.003765 / 0.004328 (-0.000564) | 0.077513 / 0.004250 (0.073262) | 0.064889 / 0.037052 (0.027837) | 0.422349 / 0.258489 (0.163860) | 0.477391 / 0.293841 (0.183550) | 0.036025 / 0.128546 (-0.092522) | 0.009939 / 0.075646 (-0.065707) | 0.342409 / 0.419271 (-0.076862) | 0.061568 / 0.043533 (0.018035) | 0.431070 / 0.255139 (0.175931) | 0.462008 / 0.283200 (0.178809) | 0.027480 / 0.141683 (-0.114203) | 1.802271 / 1.452155 (0.350116) | 1.861336 / 1.492716 (0.368620) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.255806 / 0.018006 (0.237800) | 0.507969 / 0.000490 (0.507479) | 0.010060 / 0.000200 (0.009860) | 0.000112 / 0.000054 (0.000058) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032286 / 0.037411 (-0.005125) | 0.104468 / 0.014526 (0.089942) | 0.112707 / 0.176557 (-0.063850) | 0.181285 / 0.737135 (-0.555850) | 0.113180 / 0.296338 (-0.183158) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.449265 / 0.215209 (0.234056) | 4.465941 / 2.077655 (2.388287) | 2.177889 / 1.504120 (0.673769) | 1.969864 / 1.541195 (0.428669) | 2.077502 / 1.468490 (0.609011) | 0.561607 / 4.584777 (-4.023170) | 4.281873 / 3.745712 (0.536161) | 4.975352 / 5.269862 (-0.294510) | 2.907121 / 4.565676 (-1.658555) | 0.070205 / 0.424275 (-0.354070) | 0.009164 / 0.007607 (0.001557) | 0.581921 / 0.226044 (0.355876) | 5.538667 / 2.268929 (3.269739) | 2.798853 / 55.444624 (-52.645771) | 2.314015 / 6.876477 (-4.562462) | 2.584836 / 2.142072 (0.442763) | 0.672333 / 4.805227 (-4.132894) | 0.153828 / 6.500664 (-6.346836) | 0.069757 / 0.075469 (-0.005712) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.559670 / 1.841788 (-0.282118) | 23.994639 / 8.074308 (15.920331) | 16.856160 / 10.191392 (6.664768) | 0.195555 / 0.680424 (-0.484869) | 0.021586 / 0.534201 (-0.512615) | 0.469295 / 0.579283 (-0.109989) | 0.481582 / 0.434364 (0.047218) | 0.588667 / 0.540337 (0.048329) | 0.734347 / 1.386936 (-0.652589) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009614 / 0.011353 (-0.001739) | 0.004616 / 0.011008 (-0.006392) | 0.077223 / 0.038508 (0.038715) | 0.103074 / 0.023109 (0.079965) | 0.447834 / 0.275898 (0.171936) | 0.524696 / 0.323480 (0.201216) | 0.007120 / 0.007986 (-0.000866) | 0.003890 / 0.004328 (-0.000438) | 0.076406 / 0.004250 (0.072156) | 0.073488 / 0.037052 (0.036436) | 0.466221 / 0.258489 (0.207732) | 0.532206 / 0.293841 (0.238365) | 0.037596 / 0.128546 (-0.090950) | 0.010029 / 0.075646 (-0.065617) | 0.084313 / 0.419271 (-0.334959) | 0.060088 / 0.043533 (0.016555) | 0.437792 / 0.255139 (0.182653) | 0.512850 / 0.283200 (0.229650) | 0.032424 / 0.141683 (-0.109259) | 1.762130 / 1.452155 (0.309975) | 1.946097 / 1.492716 (0.453381) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.250774 / 0.018006 (0.232768) | 0.506869 / 0.000490 (0.506379) | 0.008232 / 0.000200 (0.008032) | 0.000164 / 0.000054 (0.000110) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.037779 / 0.037411 (0.000368) | 0.111933 / 0.014526 (0.097407) | 0.122385 / 0.176557 (-0.054172) | 0.190372 / 0.737135 (-0.546763) | 0.122472 / 0.296338 (-0.173866) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.488502 / 0.215209 (0.273293) | 4.878114 / 2.077655 (2.800459) | 2.504144 / 1.504120 (1.000024) | 2.321077 / 1.541195 (0.779883) | 2.416797 / 1.468490 (0.948307) | 0.583582 / 4.584777 (-4.001195) | 4.277896 / 3.745712 (0.532184) | 3.874780 / 5.269862 (-1.395082) | 2.540099 / 4.565676 (-2.025577) | 0.068734 / 0.424275 (-0.355541) | 0.009158 / 0.007607 (0.001550) | 0.578401 / 0.226044 (0.352357) | 5.763354 / 2.268929 (3.494426) | 3.167771 / 55.444624 (-52.276853) | 2.675220 / 6.876477 (-4.201257) | 2.920927 / 2.142072 (0.778855) | 0.673948 / 4.805227 (-4.131280) | 0.157908 / 6.500664 (-6.342756) | 0.071672 / 0.075469 (-0.003797) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.635120 / 1.841788 (-0.206668) | 24.853480 / 8.074308 (16.779172) | 17.162978 / 10.191392 (6.971586) | 0.209577 / 0.680424 (-0.470847) | 0.030110 / 0.534201 (-0.504091) | 0.546970 / 0.579283 (-0.032313) | 0.581912 / 0.434364 (0.147548) | 0.571460 / 0.540337 (0.031123) | 0.823411 / 1.386936 (-0.563525) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#83b792dddd074ccd007c407f942f6870aac7ee84 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006674 / 0.011353 (-0.004679) | 0.004198 / 0.011008 (-0.006810) | 0.084859 / 0.038508 (0.046351) | 0.076065 / 0.023109 (0.052955) | 0.316065 / 0.275898 (0.040167) | 0.352097 / 0.323480 (0.028617) | 0.005610 / 0.007986 (-0.002376) | 0.003600 / 0.004328 (-0.000729) | 0.064921 / 0.004250 (0.060671) | 0.054493 / 0.037052 (0.017441) | 0.318125 / 0.258489 (0.059636) | 0.370183 / 0.293841 (0.076342) | 0.031141 / 0.128546 (-0.097405) | 0.008755 / 0.075646 (-0.066891) | 0.288241 / 0.419271 (-0.131030) | 0.052379 / 0.043533 (0.008846) | 0.328147 / 0.255139 (0.073008) | 0.347548 / 0.283200 (0.064348) | 0.024393 / 0.141683 (-0.117290) | 1.480646 / 1.452155 (0.028492) | 1.575867 / 1.492716 (0.083151) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.268978 / 0.018006 (0.250971) | 0.586470 / 0.000490 (0.585980) | 0.003190 / 0.000200 (0.002990) | 0.000081 / 0.000054 (0.000026) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030595 / 0.037411 (-0.006816) | 0.083037 / 0.014526 (0.068511) | 0.103706 / 0.176557 (-0.072850) | 0.164104 / 0.737135 (-0.573031) | 0.104536 / 0.296338 (-0.191802) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.382274 / 0.215209 (0.167065) | 3.811878 / 2.077655 (1.734223) | 1.840098 / 1.504120 (0.335978) | 1.670949 / 1.541195 (0.129754) | 1.763755 / 1.468490 (0.295264) | 0.479526 / 4.584777 (-4.105251) | 3.544443 / 3.745712 (-0.201269) | 3.263004 / 5.269862 (-2.006858) | 2.092801 / 4.565676 (-2.472875) | 0.057167 / 0.424275 (-0.367108) | 0.007450 / 0.007607 (-0.000157) | 0.463731 / 0.226044 (0.237686) | 4.624630 / 2.268929 (2.355701) | 2.327078 / 55.444624 (-53.117546) | 1.977734 / 6.876477 (-4.898743) | 2.237152 / 2.142072 (0.095079) | 0.573210 / 4.805227 (-4.232018) | 0.132095 / 6.500664 (-6.368569) | 0.060283 / 0.075469 (-0.015186) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.243404 / 1.841788 (-0.598384) | 20.306778 / 8.074308 (12.232470) | 14.561660 / 10.191392 (4.370268) | 0.170826 / 0.680424 (-0.509598) | 0.018574 / 0.534201 (-0.515627) | 0.392367 / 0.579283 (-0.186916) | 0.402918 / 0.434364 (-0.031446) | 0.476629 / 0.540337 (-0.063708) | 0.653709 / 1.386936 (-0.733227) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006562 / 0.011353 (-0.004791) | 0.004092 / 0.011008 (-0.006916) | 0.065951 / 0.038508 (0.027443) | 0.078090 / 0.023109 (0.054981) | 0.369679 / 0.275898 (0.093781) | 0.411442 / 0.323480 (0.087962) | 0.005646 / 0.007986 (-0.002339) | 0.003537 / 0.004328 (-0.000791) | 0.066024 / 0.004250 (0.061773) | 0.058947 / 0.037052 (0.021895) | 0.389219 / 0.258489 (0.130730) | 0.414200 / 0.293841 (0.120359) | 0.030372 / 0.128546 (-0.098174) | 0.008631 / 0.075646 (-0.067015) | 0.071692 / 0.419271 (-0.347580) | 0.048035 / 0.043533 (0.004502) | 0.376960 / 0.255139 (0.121821) | 0.389847 / 0.283200 (0.106648) | 0.023940 / 0.141683 (-0.117743) | 1.487633 / 1.452155 (0.035479) | 1.561680 / 1.492716 (0.068964) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.301467 / 0.018006 (0.283461) | 0.544159 / 0.000490 (0.543669) | 0.000408 / 0.000200 (0.000208) | 0.000055 / 0.000054 (0.000001) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030939 / 0.037411 (-0.006472) | 0.087432 / 0.014526 (0.072906) | 0.103263 / 0.176557 (-0.073293) | 0.154551 / 0.737135 (-0.582585) | 0.104631 / 0.296338 (-0.191707) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.422348 / 0.215209 (0.207139) | 4.206003 / 2.077655 (2.128348) | 2.212619 / 1.504120 (0.708499) | 2.049616 / 1.541195 (0.508421) | 2.139093 / 1.468490 (0.670603) | 0.489647 / 4.584777 (-4.095130) | 3.523291 / 3.745712 (-0.222422) | 3.277657 / 5.269862 (-1.992205) | 2.111353 / 4.565676 (-2.454324) | 0.057597 / 0.424275 (-0.366679) | 0.007675 / 0.007607 (0.000068) | 0.493068 / 0.226044 (0.267023) | 4.939493 / 2.268929 (2.670565) | 2.695995 / 55.444624 (-52.748630) | 2.374904 / 6.876477 (-4.501573) | 2.600110 / 2.142072 (0.458038) | 0.586306 / 4.805227 (-4.218921) | 0.134137 / 6.500664 (-6.366527) | 0.061897 / 0.075469 (-0.013572) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.330628 / 1.841788 (-0.511160) | 20.557964 / 8.074308 (12.483656) | 14.251632 / 10.191392 (4.060240) | 0.148772 / 0.680424 (-0.531652) | 0.018383 / 0.534201 (-0.515817) | 0.392552 / 0.579283 (-0.186731) | 0.403959 / 0.434364 (-0.030405) | 0.462154 / 0.540337 (-0.078184) | 0.608832 / 1.386936 (-0.778104) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#7a291b2b659a356199dff0ab004ad3845459034b \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007659 / 0.011353 (-0.003694) | 0.004500 / 0.011008 (-0.006508) | 0.100379 / 0.038508 (0.061871) | 0.079731 / 0.023109 (0.056622) | 0.381788 / 0.275898 (0.105890) | 0.416524 / 0.323480 (0.093044) | 0.004446 / 0.007986 (-0.003539) | 0.003752 / 0.004328 (-0.000577) | 0.074956 / 0.004250 (0.070706) | 0.062885 / 0.037052 (0.025832) | 0.383849 / 0.258489 (0.125360) | 0.433906 / 0.293841 (0.140065) | 0.036079 / 0.128546 (-0.092468) | 0.009927 / 0.075646 (-0.065719) | 0.343879 / 0.419271 (-0.075393) | 0.061055 / 0.043533 (0.017523) | 0.376703 / 0.255139 (0.121564) | 0.428111 / 0.283200 (0.144911) | 0.028667 / 0.141683 (-0.113016) | 1.777755 / 1.452155 (0.325600) | 1.878283 / 1.492716 (0.385567) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.220829 / 0.018006 (0.202823) | 0.506406 / 0.000490 (0.505916) | 0.005550 / 0.000200 (0.005350) | 0.000123 / 0.000054 (0.000069) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.034928 / 0.037411 (-0.002483) | 0.103873 / 0.014526 (0.089347) | 0.114352 / 0.176557 (-0.062204) | 0.188218 / 0.737135 (-0.548918) | 0.117343 / 0.296338 (-0.178995) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.459148 / 0.215209 (0.243939) | 4.582092 / 2.077655 (2.504437) | 2.275603 / 1.504120 (0.771483) | 2.058155 / 1.541195 (0.516960) | 2.163886 / 1.468490 (0.695396) | 0.573033 / 4.584777 (-4.011744) | 4.414891 / 3.745712 (0.669178) | 7.280433 / 5.269862 (2.010572) | 4.119414 / 4.565676 (-0.446262) | 0.067432 / 0.424275 (-0.356843) | 0.008687 / 0.007607 (0.001080) | 0.556029 / 0.226044 (0.329984) | 5.557192 / 2.268929 (3.288264) | 2.921596 / 55.444624 (-52.523028) | 2.520249 / 6.876477 (-4.356228) | 2.778965 / 2.142072 (0.636893) | 0.684765 / 4.805227 (-4.120462) | 0.159228 / 6.500664 (-6.341436) | 0.074015 / 0.075469 (-0.001454) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.534470 / 1.841788 (-0.307318) | 23.630693 / 8.074308 (15.556385) | 17.058142 / 10.191392 (6.866750) | 0.200909 / 0.680424 (-0.479515) | 0.021637 / 0.534201 (-0.512564) | 0.467417 / 0.579283 (-0.111866) | 0.460456 / 0.434364 (0.026092) | 0.541131 / 0.540337 (0.000793) | 0.728560 / 1.386936 (-0.658376) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007625 / 0.011353 (-0.003727) | 0.004495 / 0.011008 (-0.006513) | 0.076373 / 0.038508 (0.037865) | 0.085260 / 0.023109 (0.062151) | 0.475778 / 0.275898 (0.199880) | 0.504604 / 0.323480 (0.181124) | 0.006733 / 0.007986 (-0.001253) | 0.003751 / 0.004328 (-0.000578) | 0.074993 / 0.004250 (0.070743) | 0.064704 / 0.037052 (0.027652) | 0.490072 / 0.258489 (0.231583) | 0.507560 / 0.293841 (0.213719) | 0.036765 / 0.128546 (-0.091781) | 0.009955 / 0.075646 (-0.065692) | 0.082452 / 0.419271 (-0.336820) | 0.057131 / 0.043533 (0.013598) | 0.467664 / 0.255139 (0.212525) | 0.482143 / 0.283200 (0.198943) | 0.025396 / 0.141683 (-0.116287) | 1.807587 / 1.452155 (0.355433) | 1.853355 / 1.492716 (0.360639) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.250543 / 0.018006 (0.232537) | 0.495685 / 0.000490 (0.495196) | 0.000415 / 0.000200 (0.000215) | 0.000063 / 0.000054 (0.000008) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.035795 / 0.037411 (-0.001616) | 0.105954 / 0.014526 (0.091428) | 0.120158 / 0.176557 (-0.056399) | 0.181714 / 0.737135 (-0.555422) | 0.121242 / 0.296338 (-0.175097) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.488241 / 0.215209 (0.273032) | 4.866916 / 2.077655 (2.789262) | 2.531530 / 1.504120 (1.027410) | 2.360642 / 1.541195 (0.819448) | 2.457320 / 1.468490 (0.988830) | 0.571224 / 4.584777 (-4.013553) | 4.339042 / 3.745712 (0.593330) | 3.672812 / 5.269862 (-1.597050) | 2.364535 / 4.565676 (-2.201142) | 0.067004 / 0.424275 (-0.357271) | 0.009019 / 0.007607 (0.001412) | 0.563751 / 0.226044 (0.337707) | 5.664917 / 2.268929 (3.395989) | 3.043316 / 55.444624 (-52.401308) | 2.682722 / 6.876477 (-4.193755) | 2.863482 / 2.142072 (0.721409) | 0.666171 / 4.805227 (-4.139056) | 0.151862 / 6.500664 (-6.348802) | 0.071199 / 0.075469 (-0.004271) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.601880 / 1.841788 (-0.239907) | 23.069073 / 8.074308 (14.994765) | 16.918377 / 10.191392 (6.726985) | 0.173614 / 0.680424 (-0.506810) | 0.021843 / 0.534201 (-0.512358) | 0.470531 / 0.579283 (-0.108753) | 0.471152 / 0.434364 (0.036788) | 0.550968 / 0.540337 (0.010631) | 0.718869 / 1.386936 (-0.668067) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#f9e6eea46fc9503765c125395e30e26c1ae2e084 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007530 / 0.011353 (-0.003823) | 0.004151 / 0.011008 (-0.006858) | 0.098490 / 0.038508 (0.059982) | 0.086955 / 0.023109 (0.063846) | 0.362133 / 0.275898 (0.086235) | 0.391402 / 0.323480 (0.067922) | 0.006274 / 0.007986 (-0.001712) | 0.003711 / 0.004328 (-0.000618) | 0.073519 / 0.004250 (0.069269) | 0.066170 / 0.037052 (0.029118) | 0.379057 / 0.258489 (0.120568) | 0.398132 / 0.293841 (0.104291) | 0.033936 / 0.128546 (-0.094610) | 0.009977 / 0.075646 (-0.065670) | 0.323766 / 0.419271 (-0.095505) | 0.078615 / 0.043533 (0.035082) | 0.352403 / 0.255139 (0.097264) | 0.386607 / 0.283200 (0.103407) | 0.036579 / 0.141683 (-0.105103) | 1.691899 / 1.452155 (0.239745) | 1.819396 / 1.492716 (0.326680) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.216888 / 0.018006 (0.198882) | 0.465781 / 0.000490 (0.465291) | 0.006197 / 0.000200 (0.005997) | 0.000086 / 0.000054 (0.000031) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032870 / 0.037411 (-0.004542) | 0.096026 / 0.014526 (0.081500) | 0.111093 / 0.176557 (-0.065464) | 0.185982 / 0.737135 (-0.551154) | 0.106967 / 0.296338 (-0.189371) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.441567 / 0.215209 (0.226358) | 4.353813 / 2.077655 (2.276158) | 2.176034 / 1.504120 (0.671914) | 1.969631 / 1.541195 (0.428437) | 2.048821 / 1.468490 (0.580330) | 0.549144 / 4.584777 (-4.035633) | 4.016166 / 3.745712 (0.270453) | 3.764249 / 5.269862 (-1.505613) | 2.293995 / 4.565676 (-2.271681) | 0.065227 / 0.424275 (-0.359048) | 0.008303 / 0.007607 (0.000695) | 0.513783 / 0.226044 (0.287738) | 5.247617 / 2.268929 (2.978689) | 2.782114 / 55.444624 (-52.662510) | 2.342776 / 6.876477 (-4.533701) | 2.621569 / 2.142072 (0.479497) | 0.679336 / 4.805227 (-4.125891) | 0.152061 / 6.500664 (-6.348603) | 0.070294 / 0.075469 (-0.005175) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.471778 / 1.841788 (-0.370010) | 22.714904 / 8.074308 (14.640596) | 15.607991 / 10.191392 (5.416599) | 0.172592 / 0.680424 (-0.507832) | 0.021799 / 0.534201 (-0.512402) | 0.462740 / 0.579283 (-0.116543) | 0.490885 / 0.434364 (0.056521) | 0.552997 / 0.540337 (0.012660) | 0.763784 / 1.386936 (-0.623152) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007466 / 0.011353 (-0.003886) | 0.004322 / 0.011008 (-0.006686) | 0.074331 / 0.038508 (0.035823) | 0.085315 / 0.023109 (0.062206) | 0.409284 / 0.275898 (0.133386) | 0.464584 / 0.323480 (0.141104) | 0.005651 / 0.007986 (-0.002335) | 0.003577 / 0.004328 (-0.000751) | 0.070250 / 0.004250 (0.066000) | 0.059780 / 0.037052 (0.022727) | 0.419668 / 0.258489 (0.161179) | 0.462984 / 0.293841 (0.169143) | 0.034159 / 0.128546 (-0.094387) | 0.008999 / 0.075646 (-0.066647) | 0.076302 / 0.419271 (-0.342969) | 0.052274 / 0.043533 (0.008741) | 0.425938 / 0.255139 (0.170799) | 0.430399 / 0.283200 (0.147200) | 0.025017 / 0.141683 (-0.116666) | 1.680697 / 1.452155 (0.228542) | 1.774677 / 1.492716 (0.281960) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.291514 / 0.018006 (0.273508) | 0.461175 / 0.000490 (0.460685) | 0.023061 / 0.000200 (0.022861) | 0.000120 / 0.000054 (0.000065) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.033950 / 0.037411 (-0.003462) | 0.100032 / 0.014526 (0.085506) | 0.118308 / 0.176557 (-0.058249) | 0.183601 / 0.737135 (-0.553535) | 0.116936 / 0.296338 (-0.179402) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.478779 / 0.215209 (0.263570) | 4.709505 / 2.077655 (2.631850) | 2.457442 / 1.504120 (0.953322) | 2.213737 / 1.541195 (0.672542) | 2.340642 / 1.468490 (0.872152) | 0.567187 / 4.584777 (-4.017590) | 3.923061 / 3.745712 (0.177349) | 3.752989 / 5.269862 (-1.516873) | 2.324028 / 4.565676 (-2.241649) | 0.064471 / 0.424275 (-0.359804) | 0.008845 / 0.007607 (0.001238) | 0.547447 / 0.226044 (0.321402) | 5.599435 / 2.268929 (3.330506) | 2.980547 / 55.444624 (-52.464077) | 2.754908 / 6.876477 (-4.121569) | 2.832978 / 2.142072 (0.690906) | 0.635059 / 4.805227 (-4.170168) | 0.153478 / 6.500664 (-6.347187) | 0.067146 / 0.075469 (-0.008323) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.555588 / 1.841788 (-0.286200) | 22.828906 / 8.074308 (14.754597) | 16.211008 / 10.191392 (6.019616) | 0.168009 / 0.680424 (-0.512415) | 0.021966 / 0.534201 (-0.512235) | 0.464872 / 0.579283 (-0.114411) | 0.460429 / 0.434364 (0.026065) | 0.530498 / 0.540337 (-0.009839) | 0.705020 / 1.386936 (-0.681916) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#deb9e703237c8310c5a6db04f54d54368e951edd \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005964 / 0.011353 (-0.005389) | 0.003644 / 0.011008 (-0.007364) | 0.079607 / 0.038508 (0.041099) | 0.058387 / 0.023109 (0.035278) | 0.312226 / 0.275898 (0.036328) | 0.349206 / 0.323480 (0.025726) | 0.004715 / 0.007986 (-0.003271) | 0.002869 / 0.004328 (-0.001460) | 0.061668 / 0.004250 (0.057417) | 0.045694 / 0.037052 (0.008642) | 0.313516 / 0.258489 (0.055027) | 0.357543 / 0.293841 (0.063702) | 0.027179 / 0.128546 (-0.101367) | 0.007961 / 0.075646 (-0.067686) | 0.262473 / 0.419271 (-0.156798) | 0.045588 / 0.043533 (0.002055) | 0.313102 / 0.255139 (0.057963) | 0.368686 / 0.283200 (0.085486) | 0.020556 / 0.141683 (-0.121127) | 1.447258 / 1.452155 (-0.004897) | 1.527319 / 1.492716 (0.034602) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.199417 / 0.018006 (0.181411) | 0.422155 / 0.000490 (0.421665) | 0.004972 / 0.000200 (0.004772) | 0.000073 / 0.000054 (0.000018) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023539 / 0.037411 (-0.013872) | 0.073055 / 0.014526 (0.058529) | 0.083631 / 0.176557 (-0.092926) | 0.145923 / 0.737135 (-0.591212) | 0.083820 / 0.296338 (-0.212518) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.396305 / 0.215209 (0.181096) | 3.967065 / 2.077655 (1.889410) | 2.101109 / 1.504120 (0.596989) | 1.958817 / 1.541195 (0.417622) | 2.037894 / 1.468490 (0.569404) | 0.496955 / 4.584777 (-4.087822) | 3.078948 / 3.745712 (-0.666764) | 3.363655 / 5.269862 (-1.906207) | 2.087659 / 4.565676 (-2.478018) | 0.057171 / 0.424275 (-0.367104) | 0.006410 / 0.007607 (-0.001197) | 0.470535 / 0.226044 (0.244491) | 4.715259 / 2.268929 (2.446330) | 2.355510 / 55.444624 (-53.089114) | 2.025270 / 6.876477 (-4.851207) | 2.210401 / 2.142072 (0.068329) | 0.580538 / 4.805227 (-4.224689) | 0.125068 / 6.500664 (-6.375596) | 0.059871 / 0.075469 (-0.015598) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.245468 / 1.841788 (-0.596320) | 18.322042 / 8.074308 (10.247734) | 13.609726 / 10.191392 (3.418334) | 0.143623 / 0.680424 (-0.536801) | 0.017068 / 0.534201 (-0.517133) | 0.330758 / 0.579283 (-0.248525) | 0.339946 / 0.434364 (-0.094418) | 0.377861 / 0.540337 (-0.162476) | 0.524593 / 1.386936 (-0.862343) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006049 / 0.011353 (-0.005304) | 0.003737 / 0.011008 (-0.007271) | 0.062816 / 0.038508 (0.024308) | 0.063768 / 0.023109 (0.040658) | 0.362001 / 0.275898 (0.086103) | 0.395251 / 0.323480 (0.071772) | 0.004823 / 0.007986 (-0.003163) | 0.002881 / 0.004328 (-0.001447) | 0.061987 / 0.004250 (0.057737) | 0.049950 / 0.037052 (0.012898) | 0.362442 / 0.258489 (0.103953) | 0.399321 / 0.293841 (0.105480) | 0.027616 / 0.128546 (-0.100930) | 0.007965 / 0.075646 (-0.067681) | 0.068584 / 0.419271 (-0.350687) | 0.044700 / 0.043533 (0.001168) | 0.361011 / 0.255139 (0.105872) | 0.386007 / 0.283200 (0.102807) | 0.024621 / 0.141683 (-0.117061) | 1.441497 / 1.452155 (-0.010657) | 1.533145 / 1.492716 (0.040429) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.223446 / 0.018006 (0.205440) | 0.411147 / 0.000490 (0.410657) | 0.001821 / 0.000200 (0.001621) | 0.000081 / 0.000054 (0.000027) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025661 / 0.037411 (-0.011751) | 0.077838 / 0.014526 (0.063313) | 0.086148 / 0.176557 (-0.090408) | 0.140386 / 0.737135 (-0.596750) | 0.088793 / 0.296338 (-0.207546) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.425209 / 0.215209 (0.210000) | 4.250723 / 2.077655 (2.173068) | 2.403437 / 1.504120 (0.899317) | 2.283584 / 1.541195 (0.742390) | 2.326870 / 1.468490 (0.858380) | 0.504781 / 4.584777 (-4.079996) | 3.017042 / 3.745712 (-0.728670) | 4.643068 / 5.269862 (-0.626794) | 2.535710 / 4.565676 (-2.029967) | 0.058520 / 0.424275 (-0.365755) | 0.006766 / 0.007607 (-0.000841) | 0.500664 / 0.226044 (0.274620) | 5.017073 / 2.268929 (2.748145) | 2.668661 / 55.444624 (-52.775963) | 2.335486 / 6.876477 (-4.540991) | 2.486518 / 2.142072 (0.344445) | 0.598795 / 4.805227 (-4.206432) | 0.126395 / 6.500664 (-6.374269) | 0.063154 / 0.075469 (-0.012315) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.358059 / 1.841788 (-0.483728) | 18.615724 / 8.074308 (10.541416) | 13.670934 / 10.191392 (3.479542) | 0.134650 / 0.680424 (-0.545774) | 0.016941 / 0.534201 (-0.517260) | 0.335215 / 0.579283 (-0.244068) | 0.356118 / 0.434364 (-0.078246) | 0.393109 / 0.540337 (-0.147228) | 0.534165 / 1.386936 (-0.852771) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#da7d3b557665f34e84cd151ffe9d80b45a19fe33 \"CML watermark\")\n" ]

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[ "Hi ! Thanks for reporting, I opened a PR to fix this\r\n\r\nWhat filesystem are you using ?", "Hi @lhoestq ! Thank you so much 🙌 \r\n\r\nIt's a bit of a custom setup, but in practice I am using a [pyarrow.fs.S3FileSystem](https://arrow.apache.org/docs/python/generated/pyarrow.fs.S3FileSystem.html) (wrapped in a `fsspec.implementations.arrow.ArrowFSWrapper` [to make it](https://arrow.apache.org/docs/python/filesystems.html#using-arrow-filesystems-with-fsspec) `fsspec` compatible). I also register it as an entrypoint with `fsspec` so that it's the one that gets automatically resolved when looking for filesystems for the `s3` protocol\r\n\r\nIn my case the `storage_option` that seemed not getting piped through was the filesystem's `endpoint_override` that I use in some tests to point at a mock S3 bucket" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008473 / 0.011353 (-0.002880) | 0.004734 / 0.011008 (-0.006274) | 0.103895 / 0.038508 (0.065387) | 0.071838 / 0.023109 (0.048729) | 0.379949 / 0.275898 (0.104051) | 0.397375 / 0.323480 (0.073895) | 0.006695 / 0.007986 (-0.001290) | 0.004536 / 0.004328 (0.000207) | 0.076151 / 0.004250 (0.071901) | 0.058690 / 0.037052 (0.021638) | 0.379937 / 0.258489 (0.121448) | 0.411833 / 0.293841 (0.117992) | 0.046805 / 0.128546 (-0.081741) | 0.013689 / 0.075646 (-0.061958) | 0.327896 / 0.419271 (-0.091375) | 0.063873 / 0.043533 (0.020340) | 0.378451 / 0.255139 (0.123312) | 0.398725 / 0.283200 (0.115525) | 0.034961 / 0.141683 (-0.106722) | 1.604999 / 1.452155 (0.152845) | 1.748370 / 1.492716 (0.255654) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.224634 / 0.018006 (0.206628) | 0.548468 / 0.000490 (0.547979) | 0.005049 / 0.000200 (0.004849) | 0.000097 / 0.000054 (0.000043) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.028144 / 0.037411 (-0.009267) | 0.092184 / 0.014526 (0.077659) | 0.102987 / 0.176557 (-0.073570) | 0.176987 / 0.737135 (-0.560149) | 0.103093 / 0.296338 (-0.193246) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.578410 / 0.215209 (0.363201) | 5.664781 / 2.077655 (3.587126) | 2.487763 / 1.504120 (0.983643) | 2.254213 / 1.541195 (0.713018) | 2.239693 / 1.468490 (0.771202) | 0.810380 / 4.584777 (-3.774397) | 5.036540 / 3.745712 (1.290828) | 7.064695 / 5.269862 (1.794834) | 4.215101 / 4.565676 (-0.350575) | 0.089792 / 0.424275 (-0.334483) | 0.008487 / 0.007607 (0.000879) | 0.692292 / 0.226044 (0.466248) | 6.780226 / 2.268929 (4.511297) | 3.245510 / 55.444624 (-52.199114) | 2.575984 / 6.876477 (-4.300493) | 2.747546 / 2.142072 (0.605473) | 0.956604 / 4.805227 (-3.848623) | 0.198937 / 6.500664 (-6.301727) | 0.070849 / 0.075469 (-0.004620) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.536469 / 1.841788 (-0.305319) | 21.750583 / 8.074308 (13.676275) | 20.559532 / 10.191392 (10.368140) | 0.241244 / 0.680424 (-0.439180) | 0.030078 / 0.534201 (-0.504123) | 0.462204 / 0.579283 (-0.117079) | 0.600103 / 0.434364 (0.165739) | 0.535074 / 0.540337 (-0.005264) | 0.764427 / 1.386936 (-0.622509) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009712 / 0.011353 (-0.001641) | 0.005036 / 0.011008 (-0.005972) | 0.073683 / 0.038508 (0.035175) | 0.078684 / 0.023109 (0.055574) | 0.445096 / 0.275898 (0.169198) | 0.496233 / 0.323480 (0.172754) | 0.006231 / 0.007986 (-0.001755) | 0.004720 / 0.004328 (0.000392) | 0.076444 / 0.004250 (0.072194) | 0.060932 / 0.037052 (0.023880) | 0.505727 / 0.258489 (0.247238) | 0.498702 / 0.293841 (0.204861) | 0.047115 / 0.128546 (-0.081431) | 0.014028 / 0.075646 (-0.061618) | 0.099292 / 0.419271 (-0.319980) | 0.061571 / 0.043533 (0.018038) | 0.468435 / 0.255139 (0.213296) | 0.481747 / 0.283200 (0.198547) | 0.033962 / 0.141683 (-0.107721) | 1.665397 / 1.452155 (0.213242) | 1.830488 / 1.492716 (0.337772) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.268217 / 0.018006 (0.250211) | 0.555123 / 0.000490 (0.554633) | 0.000451 / 0.000200 (0.000251) | 0.000156 / 0.000054 (0.000101) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.034262 / 0.037411 (-0.003150) | 0.107807 / 0.014526 (0.093281) | 0.115631 / 0.176557 (-0.060926) | 0.175914 / 0.737135 (-0.561221) | 0.118775 / 0.296338 (-0.177564) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.583260 / 0.215209 (0.368051) | 5.934976 / 2.077655 (3.857321) | 2.752304 / 1.504120 (1.248184) | 2.382746 / 1.541195 (0.841551) | 2.389402 / 1.468490 (0.920912) | 0.794213 / 4.584777 (-3.790564) | 5.215269 / 3.745712 (1.469557) | 7.083595 / 5.269862 (1.813733) | 3.776136 / 4.565676 (-0.789540) | 0.091141 / 0.424275 (-0.333135) | 0.008803 / 0.007607 (0.001196) | 0.726510 / 0.226044 (0.500465) | 6.926860 / 2.268929 (4.657931) | 3.475612 / 55.444624 (-51.969012) | 2.730237 / 6.876477 (-4.146240) | 2.879145 / 2.142072 (0.737073) | 0.959956 / 4.805227 (-3.845271) | 0.189812 / 6.500664 (-6.310852) | 0.071624 / 0.075469 (-0.003845) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.748184 / 1.841788 (-0.093603) | 23.764520 / 8.074308 (15.690212) | 19.502461 / 10.191392 (9.311069) | 0.233987 / 0.680424 (-0.446437) | 0.028116 / 0.534201 (-0.506085) | 0.478838 / 0.579283 (-0.100445) | 0.560952 / 0.434364 (0.126588) | 0.529902 / 0.540337 (-0.010435) | 0.735095 / 1.386936 (-0.651841) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#dda3e389212f44117a40b44bb0cdf358cfd9f71e \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006735 / 0.011353 (-0.004618) | 0.004131 / 0.011008 (-0.006878) | 0.085619 / 0.038508 (0.047111) | 0.076973 / 0.023109 (0.053864) | 0.315175 / 0.275898 (0.039277) | 0.354703 / 0.323480 (0.031223) | 0.005409 / 0.007986 (-0.002577) | 0.003438 / 0.004328 (-0.000891) | 0.064773 / 0.004250 (0.060523) | 0.056117 / 0.037052 (0.019064) | 0.313825 / 0.258489 (0.055336) | 0.354654 / 0.293841 (0.060813) | 0.031384 / 0.128546 (-0.097163) | 0.008537 / 0.075646 (-0.067109) | 0.288528 / 0.419271 (-0.130744) | 0.053036 / 0.043533 (0.009504) | 0.312213 / 0.255139 (0.057074) | 0.335952 / 0.283200 (0.052752) | 0.023165 / 0.141683 (-0.118518) | 1.497559 / 1.452155 (0.045404) | 1.561949 / 1.492716 (0.069233) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.212558 / 0.018006 (0.194552) | 0.456555 / 0.000490 (0.456065) | 0.000334 / 0.000200 (0.000134) | 0.000052 / 0.000054 (-0.000002) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.028571 / 0.037411 (-0.008840) | 0.085154 / 0.014526 (0.070628) | 0.095961 / 0.176557 (-0.080596) | 0.153041 / 0.737135 (-0.584094) | 0.099234 / 0.296338 (-0.197105) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.381796 / 0.215209 (0.166587) | 3.806948 / 2.077655 (1.729294) | 1.829597 / 1.504120 (0.325477) | 1.659065 / 1.541195 (0.117870) | 1.738524 / 1.468490 (0.270034) | 0.483379 / 4.584777 (-4.101398) | 3.540648 / 3.745712 (-0.205064) | 3.269188 / 5.269862 (-2.000673) | 2.042113 / 4.565676 (-2.523564) | 0.056905 / 0.424275 (-0.367370) | 0.007235 / 0.007607 (-0.000373) | 0.460581 / 0.226044 (0.234537) | 4.597451 / 2.268929 (2.328522) | 2.334284 / 55.444624 (-53.110340) | 1.960026 / 6.876477 (-4.916450) | 2.172118 / 2.142072 (0.030045) | 0.576758 / 4.805227 (-4.228470) | 0.131196 / 6.500664 (-6.369468) | 0.060053 / 0.075469 (-0.015417) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.289466 / 1.841788 (-0.552322) | 19.713059 / 8.074308 (11.638750) | 14.292390 / 10.191392 (4.100998) | 0.146199 / 0.680424 (-0.534225) | 0.018123 / 0.534201 (-0.516078) | 0.392492 / 0.579283 (-0.186791) | 0.416544 / 0.434364 (-0.017820) | 0.457166 / 0.540337 (-0.083171) | 0.645490 / 1.386936 (-0.741446) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006508 / 0.011353 (-0.004845) | 0.004010 / 0.011008 (-0.006998) | 0.065201 / 0.038508 (0.026693) | 0.076322 / 0.023109 (0.053213) | 0.364198 / 0.275898 (0.088300) | 0.398251 / 0.323480 (0.074771) | 0.005328 / 0.007986 (-0.002658) | 0.003298 / 0.004328 (-0.001031) | 0.064378 / 0.004250 (0.060128) | 0.056053 / 0.037052 (0.019000) | 0.365431 / 0.258489 (0.106942) | 0.402777 / 0.293841 (0.108936) | 0.031014 / 0.128546 (-0.097532) | 0.008507 / 0.075646 (-0.067140) | 0.071471 / 0.419271 (-0.347801) | 0.048300 / 0.043533 (0.004768) | 0.359700 / 0.255139 (0.104561) | 0.382244 / 0.283200 (0.099044) | 0.023783 / 0.141683 (-0.117900) | 1.517518 / 1.452155 (0.065363) | 1.569732 / 1.492716 (0.077015) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.257447 / 0.018006 (0.239440) | 0.452598 / 0.000490 (0.452109) | 0.015187 / 0.000200 (0.014987) | 0.000164 / 0.000054 (0.000109) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030958 / 0.037411 (-0.006454) | 0.090066 / 0.014526 (0.075540) | 0.101120 / 0.176557 (-0.075437) | 0.154295 / 0.737135 (-0.582840) | 0.103582 / 0.296338 (-0.192756) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.415945 / 0.215209 (0.200736) | 4.146464 / 2.077655 (2.068809) | 2.121414 / 1.504120 (0.617294) | 1.956885 / 1.541195 (0.415690) | 2.047955 / 1.468490 (0.579465) | 0.486334 / 4.584777 (-4.098443) | 3.506263 / 3.745712 (-0.239449) | 4.942274 / 5.269862 (-0.327587) | 2.907836 / 4.565676 (-1.657841) | 0.057344 / 0.424275 (-0.366931) | 0.007813 / 0.007607 (0.000206) | 0.497888 / 0.226044 (0.271844) | 4.978017 / 2.268929 (2.709089) | 2.600447 / 55.444624 (-52.844177) | 2.335050 / 6.876477 (-4.541427) | 2.480373 / 2.142072 (0.338301) | 0.597954 / 4.805227 (-4.207274) | 0.134794 / 6.500664 (-6.365870) | 0.062605 / 0.075469 (-0.012864) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.344390 / 1.841788 (-0.497398) | 20.020067 / 8.074308 (11.945759) | 14.344626 / 10.191392 (4.153234) | 0.172101 / 0.680424 (-0.508322) | 0.018549 / 0.534201 (-0.515652) | 0.393589 / 0.579283 (-0.185694) | 0.438401 / 0.434364 (0.004037) | 0.463800 / 0.540337 (-0.076537) | 0.618269 / 1.386936 (-0.768667) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#b0177910b32712f28d147879395e511207e39958 \"CML watermark\")\n" ]

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[ "You can list the dataset's columns with `ds.column_names` before `.map` to check whether the dataset has an `image` column. If it doesn't, then this is a bug. Otherwise, please paste the line with the `.map` call.\r\n\r\n\r\n", "This is the piece of code I am running:\r\n```\r\ndata_transforms = utils.get_data_augmentation(args)\r\nimage_dataset = utils.load_image_dataset(args.dataset)\r\n\r\ndef resize(examples):\r\n examples[\"pixel_values\"] = [image.convert(\"RGB\").resize((300, 300)) for image in examples[\"image\"]]\r\n return examples\r\n\r\ndef preprocess_train(example_batch):\r\n print(f\"Example batch: \\n{example_batch}\")\r\n example_batch[\"pixel_values\"] = [\r\n data_transforms[\"train\"](image.convert(\"RGB\")) for image in example_batch[\"pixel_values\"]\r\n ]\r\n return example_batch\r\n\r\ndef preprocess_val(example_batch):\r\n example_batch[\"pixel_values\"] = [\r\n data_transforms[\"val\"](image.convert(\"RGB\")) for image in example_batch[\"pixel_values\"]\r\n ]\r\n return example_batch\r\n\r\nimage_dataset = image_dataset.map(resize, remove_columns=[\"image\"], batched=True)\r\n\r\nimage_dataset[\"train\"].set_transform(preprocess_train)\r\nimage_dataset[\"validation\"].set_transform(preprocess_val)\r\n```\r\n\r\nWhen I print ds.column_names I get the following\r\n`{'train': ['image', 'label'], 'validation': ['image', 'label'], 'test': ['image', 'label']}`\r\n\r\nThe `print(f\"Example batch: \\n{example_batch}\")` in the `preprocess_train` function outputs only labels without images:\r\n```\r\nExample batch: \r\n{'label': [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3]}\r\n```\r\n\r\nThe weird part of it all is that a sample code runs in a jupyter lab notebook without any bugs, but when I run my scripts from the terminal I get the bug. The same code.", "The `remove_columns=[\"image\"]` argument in the `.map` call removes the `image` column from the output, so drop this argument to preserve it.", "The problem is not with the removal of the image key. The bug is why only the labels are sent to be process, instead of all the featues or dictionary keys.\r\n\r\nP.S. I just dropped the removal argument as you've suggested, but that didn't solve the problem, because only the labels are being sent to be processed", "All the `image_dataset.column_names` after the `map` call should also be present in `preprocess_train `/`preprocess_val` unless (input) `columns` in `set_transform` are specified.\r\n\r\nIf that's not the case, we need a full reproducer (not snippets) with the environment info.", "I have resolved the error after including a collate function as indicated in the Quick Start session of the Datasets docs.:\r\n\r\nHere is what I did:\r\n```\r\ndata_transforms = utils.get_data_augmentation(args)\r\nimage_dataset = utils.load_image_dataset(args.dataset)\r\n\r\ndef preprocess_train(example_batch):\r\n example_batch[\"pixel_values\"] = [\r\n data_transforms[\"train\"](image.convert(\"RGB\")) for image in example_batch[\"image\"]\r\n ]\r\n return example_batch\r\n\r\ndef preprocess_val(example_batch):\r\n example_batch[\"pixel_values\"] = [\r\n data_transforms[\"val\"](image.convert(\"RGB\")) for image in example_batch[\"image\"]\r\n ]\r\n return example_batch\r\n\r\ndef collate_fn(examples):\r\n images = []\r\n labels = []\r\n for example in examples:\r\n images.append((example[\"pixel_values\"]))\r\n labels.append(example[\"label\"])\r\n\r\n pixel_values = torch.stack(images)\r\n labels = torch.tensor(labels)\r\n return {\"pixel_values\": pixel_values, \"label\": labels}\r\n\r\ntrain_dataset = image_dataset[\"train\"].with_transform(preprocess_train)\r\nval_dataset = image_dataset[\"validation\"].with_transform(preprocess_val)\r\n\r\nimage_datasets = {\r\n \"train\": train_dataset,\r\n \"val\": val_dataset\r\n}\r\n\r\nsamplers = {\r\n \"train\": data.RandomSampler(train_dataset),\r\n \"val\": data.SequentialSampler(val_dataset),\r\n}\r\n\r\ndataloaders = {\r\n x: data.DataLoader(\r\n image_datasets[x],\r\n collate_fn=collate_fn,\r\n batch_size=batch_size,\r\n sampler=samplers[x],\r\n num_workers=args.num_workers,\r\n worker_init_fn=utils.set_seed_for_worker,\r\n generator=g,\r\n pin_memory=True,\r\n )\r\n for x in [\"train\", \"val\"]\r\n}\r\n\r\ntrain_loader, val_loader = dataloaders[\"train\"], dataloaders[\"val\"]\r\n```\r\nEverything runs fine without any bug now. " ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006573 / 0.011353 (-0.004780) | 0.004014 / 0.011008 (-0.006994) | 0.084999 / 0.038508 (0.046491) | 0.074965 / 0.023109 (0.051855) | 0.313294 / 0.275898 (0.037396) | 0.349678 / 0.323480 (0.026198) | 0.005401 / 0.007986 (-0.002585) | 0.003401 / 0.004328 (-0.000927) | 0.065363 / 0.004250 (0.061112) | 0.057159 / 0.037052 (0.020107) | 0.313260 / 0.258489 (0.054771) | 0.354654 / 0.293841 (0.060813) | 0.030895 / 0.128546 (-0.097651) | 0.008605 / 0.075646 (-0.067042) | 0.289190 / 0.419271 (-0.130081) | 0.052474 / 0.043533 (0.008942) | 0.316193 / 0.255139 (0.061054) | 0.339966 / 0.283200 (0.056767) | 0.024112 / 0.141683 (-0.117571) | 1.515606 / 1.452155 (0.063452) | 1.571428 / 1.492716 (0.078711) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.203284 / 0.018006 (0.185278) | 0.452720 / 0.000490 (0.452230) | 0.003891 / 0.000200 (0.003691) | 0.000094 / 0.000054 (0.000040) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.028992 / 0.037411 (-0.008419) | 0.083170 / 0.014526 (0.068644) | 0.097739 / 0.176557 (-0.078817) | 0.153401 / 0.737135 (-0.583734) | 0.098628 / 0.296338 (-0.197711) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.390190 / 0.215209 (0.174981) | 3.901272 / 2.077655 (1.823617) | 1.887194 / 1.504120 (0.383074) | 1.723696 / 1.541195 (0.182501) | 1.800537 / 1.468490 (0.332047) | 0.481758 / 4.584777 (-4.103019) | 3.605098 / 3.745712 (-0.140614) | 3.304482 / 5.269862 (-1.965380) | 2.053515 / 4.565676 (-2.512161) | 0.056997 / 0.424275 (-0.367278) | 0.007347 / 0.007607 (-0.000260) | 0.461367 / 0.226044 (0.235323) | 4.606152 / 2.268929 (2.337223) | 2.470048 / 55.444624 (-52.974576) | 2.060019 / 6.876477 (-4.816458) | 2.320507 / 2.142072 (0.178435) | 0.575050 / 4.805227 (-4.230178) | 0.133030 / 6.500664 (-6.367634) | 0.061508 / 0.075469 (-0.013962) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.275430 / 1.841788 (-0.566357) | 19.725453 / 8.074308 (11.651145) | 14.396360 / 10.191392 (4.204968) | 0.157980 / 0.680424 (-0.522443) | 0.018516 / 0.534201 (-0.515685) | 0.394717 / 0.579283 (-0.184566) | 0.404948 / 0.434364 (-0.029415) | 0.474001 / 0.540337 (-0.066336) | 0.668463 / 1.386936 (-0.718474) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006697 / 0.011353 (-0.004656) | 0.004206 / 0.011008 (-0.006802) | 0.065458 / 0.038508 (0.026950) | 0.075845 / 0.023109 (0.052735) | 0.365051 / 0.275898 (0.089153) | 0.400919 / 0.323480 (0.077439) | 0.005347 / 0.007986 (-0.002638) | 0.003386 / 0.004328 (-0.000943) | 0.065398 / 0.004250 (0.061148) | 0.057320 / 0.037052 (0.020268) | 0.379161 / 0.258489 (0.120672) | 0.406892 / 0.293841 (0.113051) | 0.031986 / 0.128546 (-0.096560) | 0.008674 / 0.075646 (-0.066972) | 0.071723 / 0.419271 (-0.347549) | 0.049897 / 0.043533 (0.006364) | 0.372034 / 0.255139 (0.116895) | 0.394293 / 0.283200 (0.111094) | 0.023681 / 0.141683 (-0.118002) | 1.479793 / 1.452155 (0.027639) | 1.553105 / 1.492716 (0.060389) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.233660 / 0.018006 (0.215654) | 0.454412 / 0.000490 (0.453923) | 0.004473 / 0.000200 (0.004273) | 0.000085 / 0.000054 (0.000030) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031115 / 0.037411 (-0.006296) | 0.090541 / 0.014526 (0.076015) | 0.104363 / 0.176557 (-0.072193) | 0.161022 / 0.737135 (-0.576114) | 0.105114 / 0.296338 (-0.191225) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.427668 / 0.215209 (0.212459) | 4.263145 / 2.077655 (2.185490) | 2.247043 / 1.504120 (0.742923) | 2.082554 / 1.541195 (0.541360) | 2.170505 / 1.468490 (0.702015) | 0.491802 / 4.584777 (-4.092975) | 3.587295 / 3.745712 (-0.158417) | 3.344697 / 5.269862 (-1.925165) | 2.060529 / 4.565676 (-2.505148) | 0.057829 / 0.424275 (-0.366446) | 0.007780 / 0.007607 (0.000173) | 0.503374 / 0.226044 (0.277330) | 5.034742 / 2.268929 (2.765814) | 2.701957 / 55.444624 (-52.742667) | 2.479002 / 6.876477 (-4.397474) | 2.622055 / 2.142072 (0.479982) | 0.591363 / 4.805227 (-4.213864) | 0.133834 / 6.500664 (-6.366830) | 0.062276 / 0.075469 (-0.013193) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.338788 / 1.841788 (-0.503000) | 20.333599 / 8.074308 (12.259291) | 14.783196 / 10.191392 (4.591804) | 0.168695 / 0.680424 (-0.511729) | 0.018478 / 0.534201 (-0.515723) | 0.397398 / 0.579283 (-0.181885) | 0.409900 / 0.434364 (-0.024464) | 0.475315 / 0.540337 (-0.065023) | 0.644267 / 1.386936 (-0.742669) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#cb0b324e0bae4c93bb5509b2f0731bc346adb21b \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007315 / 0.011353 (-0.004038) | 0.004294 / 0.011008 (-0.006714) | 0.100300 / 0.038508 (0.061792) | 0.077780 / 0.023109 (0.054670) | 0.353728 / 0.275898 (0.077830) | 0.400538 / 0.323480 (0.077058) | 0.005807 / 0.007986 (-0.002178) | 0.003649 / 0.004328 (-0.000680) | 0.077548 / 0.004250 (0.073297) | 0.058834 / 0.037052 (0.021781) | 0.352064 / 0.258489 (0.093574) | 0.399951 / 0.293841 (0.106110) | 0.036472 / 0.128546 (-0.092074) | 0.008653 / 0.075646 (-0.066994) | 0.323089 / 0.419271 (-0.096182) | 0.075127 / 0.043533 (0.031594) | 0.334412 / 0.255139 (0.079273) | 0.375718 / 0.283200 (0.092519) | 0.027915 / 0.141683 (-0.113768) | 1.698795 / 1.452155 (0.246640) | 1.781447 / 1.492716 (0.288730) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.216111 / 0.018006 (0.198104) | 0.507706 / 0.000490 (0.507216) | 0.000851 / 0.000200 (0.000651) | 0.000085 / 0.000054 (0.000030) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030451 / 0.037411 (-0.006960) | 0.087488 / 0.014526 (0.072962) | 0.105094 / 0.176557 (-0.071462) | 0.168130 / 0.737135 (-0.569006) | 0.106791 / 0.296338 (-0.189547) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.426291 / 0.215209 (0.211082) | 4.281046 / 2.077655 (2.203391) | 2.162268 / 1.504120 (0.658148) | 1.909503 / 1.541195 (0.368309) | 1.943165 / 1.468490 (0.474675) | 0.516667 / 4.584777 (-4.068110) | 4.113218 / 3.745712 (0.367506) | 5.931372 / 5.269862 (0.661510) | 3.563521 / 4.565676 (-1.002155) | 0.062415 / 0.424275 (-0.361860) | 0.007577 / 0.007607 (-0.000030) | 0.534588 / 0.226044 (0.308543) | 5.183490 / 2.268929 (2.914561) | 2.790662 / 55.444624 (-52.653962) | 2.258630 / 6.876477 (-4.617846) | 2.499930 / 2.142072 (0.357857) | 0.606154 / 4.805227 (-4.199073) | 0.136093 / 6.500664 (-6.364571) | 0.061151 / 0.075469 (-0.014318) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.398392 / 1.841788 (-0.443396) | 21.482150 / 8.074308 (13.407842) | 15.477336 / 10.191392 (5.285944) | 0.192878 / 0.680424 (-0.487546) | 0.021764 / 0.534201 (-0.512437) | 0.437149 / 0.579283 (-0.142134) | 0.439976 / 0.434364 (0.005612) | 0.514498 / 0.540337 (-0.025840) | 0.762642 / 1.386936 (-0.624294) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007504 / 0.011353 (-0.003849) | 0.004526 / 0.011008 (-0.006482) | 0.071008 / 0.038508 (0.032500) | 0.078305 / 0.023109 (0.055195) | 0.436160 / 0.275898 (0.160262) | 0.439048 / 0.323480 (0.115568) | 0.006061 / 0.007986 (-0.001925) | 0.003681 / 0.004328 (-0.000648) | 0.069445 / 0.004250 (0.065195) | 0.059258 / 0.037052 (0.022206) | 0.437745 / 0.258489 (0.179256) | 0.464247 / 0.293841 (0.170406) | 0.033286 / 0.128546 (-0.095260) | 0.009846 / 0.075646 (-0.065800) | 0.076330 / 0.419271 (-0.342941) | 0.051919 / 0.043533 (0.008386) | 0.432817 / 0.255139 (0.177678) | 0.426295 / 0.283200 (0.143095) | 0.029818 / 0.141683 (-0.111865) | 1.747640 / 1.452155 (0.295485) | 1.726653 / 1.492716 (0.233937) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.251253 / 0.018006 (0.233247) | 0.483394 / 0.000490 (0.482904) | 0.003992 / 0.000200 (0.003793) | 0.000096 / 0.000054 (0.000041) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032180 / 0.037411 (-0.005231) | 0.095425 / 0.014526 (0.080900) | 0.105908 / 0.176557 (-0.070648) | 0.164732 / 0.737135 (-0.572403) | 0.115903 / 0.296338 (-0.180435) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.469467 / 0.215209 (0.254258) | 4.633239 / 2.077655 (2.555584) | 2.517557 / 1.504120 (1.013437) | 2.352726 / 1.541195 (0.811531) | 2.314618 / 1.468490 (0.846128) | 0.548446 / 4.584777 (-4.036331) | 3.908797 / 3.745712 (0.163085) | 3.525941 / 5.269862 (-1.743921) | 2.178858 / 4.565676 (-2.386819) | 0.057614 / 0.424275 (-0.366661) | 0.008604 / 0.007607 (0.000997) | 0.554756 / 0.226044 (0.328711) | 5.325635 / 2.268929 (3.056706) | 3.014266 / 55.444624 (-52.430359) | 2.844165 / 6.876477 (-4.032312) | 2.903019 / 2.142072 (0.760947) | 0.617750 / 4.805227 (-4.187478) | 0.144259 / 6.500664 (-6.356405) | 0.065944 / 0.075469 (-0.009525) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.504625 / 1.841788 (-0.337163) | 22.400787 / 8.074308 (14.326479) | 15.223702 / 10.191392 (5.032310) | 0.213357 / 0.680424 (-0.467067) | 0.019310 / 0.534201 (-0.514891) | 0.456596 / 0.579283 (-0.122687) | 0.473811 / 0.434364 (0.039447) | 0.517800 / 0.540337 (-0.022537) | 0.792468 / 1.386936 (-0.594468) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#03750f4a4c664125c7de910be004710b181dd354 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007420 / 0.011353 (-0.003933) | 0.004502 / 0.011008 (-0.006506) | 0.097882 / 0.038508 (0.059374) | 0.079084 / 0.023109 (0.055975) | 0.361797 / 0.275898 (0.085899) | 0.416563 / 0.323480 (0.093083) | 0.006106 / 0.007986 (-0.001879) | 0.003803 / 0.004328 (-0.000526) | 0.074669 / 0.004250 (0.070418) | 0.062168 / 0.037052 (0.025116) | 0.378844 / 0.258489 (0.120355) | 0.426601 / 0.293841 (0.132760) | 0.035619 / 0.128546 (-0.092927) | 0.009686 / 0.075646 (-0.065960) | 0.336481 / 0.419271 (-0.082790) | 0.065553 / 0.043533 (0.022021) | 0.362501 / 0.255139 (0.107362) | 0.399752 / 0.283200 (0.116552) | 0.028685 / 0.141683 (-0.112998) | 1.683495 / 1.452155 (0.231340) | 1.786105 / 1.492716 (0.293388) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.220792 / 0.018006 (0.202786) | 0.501936 / 0.000490 (0.501447) | 0.000389 / 0.000200 (0.000189) | 0.000057 / 0.000054 (0.000003) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032180 / 0.037411 (-0.005232) | 0.093079 / 0.014526 (0.078553) | 0.107967 / 0.176557 (-0.068589) | 0.171747 / 0.737135 (-0.565389) | 0.107920 / 0.296338 (-0.188418) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.444431 / 0.215209 (0.229222) | 4.454934 / 2.077655 (2.377279) | 2.140265 / 1.504120 (0.636145) | 1.960126 / 1.541195 (0.418931) | 2.049649 / 1.468490 (0.581158) | 0.557861 / 4.584777 (-4.026916) | 4.046240 / 3.745712 (0.300528) | 4.513748 / 5.269862 (-0.756114) | 2.593643 / 4.565676 (-1.972034) | 0.066795 / 0.424275 (-0.357480) | 0.008302 / 0.007607 (0.000694) | 0.535643 / 0.226044 (0.309599) | 5.299429 / 2.268929 (3.030500) | 2.656019 / 55.444624 (-52.788606) | 2.281214 / 6.876477 (-4.595263) | 2.302910 / 2.142072 (0.160837) | 0.661696 / 4.805227 (-4.143532) | 0.149787 / 6.500664 (-6.350877) | 0.069609 / 0.075469 (-0.005860) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.509842 / 1.841788 (-0.331946) | 21.717504 / 8.074308 (13.643196) | 15.825102 / 10.191392 (5.633710) | 0.168115 / 0.680424 (-0.512309) | 0.021637 / 0.534201 (-0.512564) | 0.454270 / 0.579283 (-0.125013) | 0.458531 / 0.434364 (0.024167) | 0.523052 / 0.540337 (-0.017285) | 0.711219 / 1.386936 (-0.675717) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007189 / 0.011353 (-0.004164) | 0.004437 / 0.011008 (-0.006571) | 0.075111 / 0.038508 (0.036603) | 0.079245 / 0.023109 (0.056136) | 0.423169 / 0.275898 (0.147270) | 0.455007 / 0.323480 (0.131527) | 0.006076 / 0.007986 (-0.001909) | 0.003819 / 0.004328 (-0.000509) | 0.074976 / 0.004250 (0.070726) | 0.062127 / 0.037052 (0.025075) | 0.456809 / 0.258489 (0.198320) | 0.474707 / 0.293841 (0.180867) | 0.036221 / 0.128546 (-0.092325) | 0.009428 / 0.075646 (-0.066218) | 0.082842 / 0.419271 (-0.336429) | 0.057086 / 0.043533 (0.013553) | 0.436121 / 0.255139 (0.180982) | 0.453934 / 0.283200 (0.170734) | 0.026045 / 0.141683 (-0.115638) | 1.789782 / 1.452155 (0.337627) | 1.820934 / 1.492716 (0.328218) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.230790 / 0.018006 (0.212784) | 0.497987 / 0.000490 (0.497497) | 0.002775 / 0.000200 (0.002575) | 0.000093 / 0.000054 (0.000038) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.034418 / 0.037411 (-0.002994) | 0.105567 / 0.014526 (0.091041) | 0.113134 / 0.176557 (-0.063423) | 0.173742 / 0.737135 (-0.563394) | 0.115936 / 0.296338 (-0.180403) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.502259 / 0.215209 (0.287050) | 4.969877 / 2.077655 (2.892222) | 2.684860 / 1.504120 (1.180740) | 2.484386 / 1.541195 (0.943192) | 2.543061 / 1.468490 (1.074571) | 0.545733 / 4.584777 (-4.039044) | 4.029660 / 3.745712 (0.283948) | 5.927883 / 5.269862 (0.658021) | 3.528372 / 4.565676 (-1.037305) | 0.065957 / 0.424275 (-0.358318) | 0.008933 / 0.007607 (0.001326) | 0.601630 / 0.226044 (0.375585) | 5.825872 / 2.268929 (3.556944) | 3.230721 / 55.444624 (-52.213904) | 2.891308 / 6.876477 (-3.985169) | 3.054994 / 2.142072 (0.912922) | 0.665480 / 4.805227 (-4.139747) | 0.154815 / 6.500664 (-6.345849) | 0.072997 / 0.075469 (-0.002472) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.549892 / 1.841788 (-0.291896) | 22.337484 / 8.074308 (14.263176) | 16.308286 / 10.191392 (6.116894) | 0.189594 / 0.680424 (-0.490830) | 0.021844 / 0.534201 (-0.512357) | 0.456958 / 0.579283 (-0.122325) | 0.459957 / 0.434364 (0.025593) | 0.529014 / 0.540337 (-0.011323) | 0.700359 / 1.386936 (-0.686577) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#32e4df86b5fb0bc164433ce615af641ec3ba437e \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009050 / 0.011353 (-0.002303) | 0.004968 / 0.011008 (-0.006040) | 0.114315 / 0.038508 (0.075807) | 0.084475 / 0.023109 (0.061366) | 0.426325 / 0.275898 (0.150427) | 0.457870 / 0.323480 (0.134390) | 0.007076 / 0.007986 (-0.000910) | 0.004635 / 0.004328 (0.000307) | 0.082950 / 0.004250 (0.078700) | 0.065414 / 0.037052 (0.028361) | 0.441936 / 0.258489 (0.183447) | 0.476983 / 0.293841 (0.183142) | 0.048575 / 0.128546 (-0.079972) | 0.013929 / 0.075646 (-0.061717) | 0.377498 / 0.419271 (-0.041774) | 0.081503 / 0.043533 (0.037970) | 0.426706 / 0.255139 (0.171567) | 0.460374 / 0.283200 (0.177175) | 0.046052 / 0.141683 (-0.095631) | 1.894896 / 1.452155 (0.442741) | 1.998639 / 1.492716 (0.505923) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.313267 / 0.018006 (0.295261) | 0.607501 / 0.000490 (0.607012) | 0.003369 / 0.000200 (0.003169) | 0.000102 / 0.000054 (0.000047) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032266 / 0.037411 (-0.005145) | 0.120138 / 0.014526 (0.105613) | 0.115044 / 0.176557 (-0.061513) | 0.181374 / 0.737135 (-0.555761) | 0.114681 / 0.296338 (-0.181657) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.648039 / 0.215209 (0.432830) | 6.005048 / 2.077655 (3.927394) | 2.674524 / 1.504120 (1.170404) | 2.284831 / 1.541195 (0.743637) | 2.360150 / 1.468490 (0.891660) | 0.888021 / 4.584777 (-3.696756) | 5.419840 / 3.745712 (1.674128) | 4.825816 / 5.269862 (-0.444046) | 3.140876 / 4.565676 (-1.424801) | 0.099511 / 0.424275 (-0.324764) | 0.009176 / 0.007607 (0.001569) | 0.735646 / 0.226044 (0.509602) | 7.224026 / 2.268929 (4.955097) | 3.551146 / 55.444624 (-51.893478) | 2.844374 / 6.876477 (-4.032103) | 3.145307 / 2.142072 (1.003235) | 1.077636 / 4.805227 (-3.727591) | 0.217754 / 6.500664 (-6.282910) | 0.081755 / 0.075469 (0.006286) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.670956 / 1.841788 (-0.170831) | 25.524961 / 8.074308 (17.450653) | 23.061596 / 10.191392 (12.870204) | 0.247524 / 0.680424 (-0.432899) | 0.031712 / 0.534201 (-0.502489) | 0.513049 / 0.579283 (-0.066234) | 0.614568 / 0.434364 (0.180204) | 0.574669 / 0.540337 (0.034331) | 0.816621 / 1.386936 (-0.570315) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009384 / 0.011353 (-0.001969) | 0.004959 / 0.011008 (-0.006049) | 0.084782 / 0.038508 (0.046274) | 0.098086 / 0.023109 (0.074977) | 0.544395 / 0.275898 (0.268497) | 0.585157 / 0.323480 (0.261677) | 0.006507 / 0.007986 (-0.001479) | 0.004151 / 0.004328 (-0.000178) | 0.088596 / 0.004250 (0.084345) | 0.069149 / 0.037052 (0.032097) | 0.533109 / 0.258489 (0.274620) | 0.604117 / 0.293841 (0.310276) | 0.047685 / 0.128546 (-0.080861) | 0.013651 / 0.075646 (-0.061996) | 0.096566 / 0.419271 (-0.322705) | 0.062022 / 0.043533 (0.018489) | 0.561897 / 0.255139 (0.306758) | 0.617636 / 0.283200 (0.334436) | 0.034636 / 0.141683 (-0.107047) | 1.854667 / 1.452155 (0.402512) | 1.908923 / 1.492716 (0.416207) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.260633 / 0.018006 (0.242627) | 0.622268 / 0.000490 (0.621778) | 0.002116 / 0.000200 (0.001916) | 0.000101 / 0.000054 (0.000047) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.035161 / 0.037411 (-0.002250) | 0.103707 / 0.014526 (0.089181) | 0.115467 / 0.176557 (-0.061090) | 0.180077 / 0.737135 (-0.557059) | 0.118871 / 0.296338 (-0.177467) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.628481 / 0.215209 (0.413271) | 6.304929 / 2.077655 (4.227275) | 3.027775 / 1.504120 (1.523655) | 2.753880 / 1.541195 (1.212686) | 2.820442 / 1.468490 (1.351952) | 0.851103 / 4.584777 (-3.733674) | 5.427383 / 3.745712 (1.681670) | 7.434310 / 5.269862 (2.164449) | 4.418790 / 4.565676 (-0.146887) | 0.101733 / 0.424275 (-0.322542) | 0.009701 / 0.007607 (0.002094) | 0.763033 / 0.226044 (0.536989) | 7.497927 / 2.268929 (5.228998) | 3.735335 / 55.444624 (-51.709290) | 3.149200 / 6.876477 (-3.727277) | 3.306214 / 2.142072 (1.164141) | 1.085440 / 4.805227 (-3.719787) | 0.207562 / 6.500664 (-6.293102) | 0.078091 / 0.075469 (0.002622) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.820097 / 1.841788 (-0.021691) | 25.525539 / 8.074308 (17.451231) | 21.874219 / 10.191392 (11.682827) | 0.228391 / 0.680424 (-0.452033) | 0.029584 / 0.534201 (-0.504617) | 0.511546 / 0.579283 (-0.067737) | 0.602719 / 0.434364 (0.168355) | 0.581874 / 0.540337 (0.041537) | 0.802861 / 1.386936 (-0.584075) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#6063ea2069c8b5641b983ba2c1d39b60afe7c00a \"CML watermark\")\n" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006578 / 0.011353 (-0.004775) | 0.003953 / 0.011008 (-0.007055) | 0.084417 / 0.038508 (0.045908) | 0.076729 / 0.023109 (0.053620) | 0.315369 / 0.275898 (0.039471) | 0.347012 / 0.323480 (0.023533) | 0.005299 / 0.007986 (-0.002686) | 0.003321 / 0.004328 (-0.001007) | 0.063954 / 0.004250 (0.059704) | 0.055810 / 0.037052 (0.018758) | 0.317651 / 0.258489 (0.059162) | 0.352603 / 0.293841 (0.058762) | 0.031355 / 0.128546 (-0.097192) | 0.008493 / 0.075646 (-0.067153) | 0.287295 / 0.419271 (-0.131977) | 0.052716 / 0.043533 (0.009183) | 0.316410 / 0.255139 (0.061271) | 0.328893 / 0.283200 (0.045693) | 0.024005 / 0.141683 (-0.117678) | 1.520333 / 1.452155 (0.068178) | 1.601268 / 1.492716 (0.108552) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.205144 / 0.018006 (0.187138) | 0.459160 / 0.000490 (0.458670) | 0.000321 / 0.000200 (0.000121) | 0.000054 / 0.000054 (-0.000000) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.027503 / 0.037411 (-0.009908) | 0.081476 / 0.014526 (0.066950) | 0.096759 / 0.176557 (-0.079798) | 0.157888 / 0.737135 (-0.579247) | 0.094592 / 0.296338 (-0.201746) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.384762 / 0.215209 (0.169553) | 3.843503 / 2.077655 (1.765849) | 1.921685 / 1.504120 (0.417565) | 1.752441 / 1.541195 (0.211246) | 1.822105 / 1.468490 (0.353615) | 0.480243 / 4.584777 (-4.104534) | 3.577220 / 3.745712 (-0.168492) | 5.047560 / 5.269862 (-0.222302) | 2.988008 / 4.565676 (-1.577669) | 0.056430 / 0.424275 (-0.367845) | 0.007180 / 0.007607 (-0.000427) | 0.458113 / 0.226044 (0.232069) | 4.584096 / 2.268929 (2.315168) | 2.395307 / 55.444624 (-53.049317) | 2.080530 / 6.876477 (-4.795947) | 2.239000 / 2.142072 (0.096927) | 0.575822 / 4.805227 (-4.229405) | 0.133303 / 6.500664 (-6.367361) | 0.059449 / 0.075469 (-0.016020) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.256496 / 1.841788 (-0.585291) | 19.651614 / 8.074308 (11.577306) | 14.232480 / 10.191392 (4.041088) | 0.146461 / 0.680424 (-0.533963) | 0.018632 / 0.534201 (-0.515569) | 0.399844 / 0.579283 (-0.179439) | 0.411225 / 0.434364 (-0.023139) | 0.458203 / 0.540337 (-0.082135) | 0.669916 / 1.386936 (-0.717020) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006463 / 0.011353 (-0.004890) | 0.003898 / 0.011008 (-0.007110) | 0.064037 / 0.038508 (0.025529) | 0.071982 / 0.023109 (0.048873) | 0.361936 / 0.275898 (0.086038) | 0.393165 / 0.323480 (0.069685) | 0.005207 / 0.007986 (-0.002779) | 0.003231 / 0.004328 (-0.001098) | 0.064318 / 0.004250 (0.060068) | 0.055776 / 0.037052 (0.018724) | 0.383087 / 0.258489 (0.124598) | 0.402428 / 0.293841 (0.108587) | 0.031587 / 0.128546 (-0.096959) | 0.008527 / 0.075646 (-0.067119) | 0.070495 / 0.419271 (-0.348777) | 0.048806 / 0.043533 (0.005273) | 0.369932 / 0.255139 (0.114793) | 0.385268 / 0.283200 (0.102068) | 0.023183 / 0.141683 (-0.118500) | 1.491175 / 1.452155 (0.039020) | 1.534191 / 1.492716 (0.041475) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.224526 / 0.018006 (0.206520) | 0.445460 / 0.000490 (0.444970) | 0.003612 / 0.000200 (0.003412) | 0.000089 / 0.000054 (0.000034) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029829 / 0.037411 (-0.007583) | 0.087951 / 0.014526 (0.073425) | 0.100069 / 0.176557 (-0.076487) | 0.154944 / 0.737135 (-0.582192) | 0.101271 / 0.296338 (-0.195067) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.412385 / 0.215209 (0.197175) | 4.108038 / 2.077655 (2.030384) | 2.163578 / 1.504120 (0.659459) | 2.031934 / 1.541195 (0.490740) | 2.155857 / 1.468490 (0.687367) | 0.481132 / 4.584777 (-4.103645) | 3.620868 / 3.745712 (-0.124844) | 5.222175 / 5.269862 (-0.047687) | 3.115637 / 4.565676 (-1.450039) | 0.056480 / 0.424275 (-0.367795) | 0.007761 / 0.007607 (0.000154) | 0.483553 / 0.226044 (0.257509) | 4.830087 / 2.268929 (2.561159) | 2.629919 / 55.444624 (-52.814705) | 2.327551 / 6.876477 (-4.548926) | 2.539934 / 2.142072 (0.397861) | 0.587963 / 4.805227 (-4.217265) | 0.131085 / 6.500664 (-6.369579) | 0.060807 / 0.075469 (-0.014662) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.350003 / 1.841788 (-0.491785) | 19.491713 / 8.074308 (11.417405) | 14.030429 / 10.191392 (3.839037) | 0.174762 / 0.680424 (-0.505662) | 0.018523 / 0.534201 (-0.515678) | 0.394946 / 0.579283 (-0.184337) | 0.407652 / 0.434364 (-0.026712) | 0.465806 / 0.540337 (-0.074531) | 0.605417 / 1.386936 (-0.781519) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#cc85979df3a39657079fdf0844c7e64547507f1a \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006235 / 0.011353 (-0.005118) | 0.003675 / 0.011008 (-0.007333) | 0.080680 / 0.038508 (0.042171) | 0.064378 / 0.023109 (0.041268) | 0.394312 / 0.275898 (0.118414) | 0.428143 / 0.323480 (0.104663) | 0.004794 / 0.007986 (-0.003191) | 0.002899 / 0.004328 (-0.001429) | 0.062592 / 0.004250 (0.058342) | 0.050957 / 0.037052 (0.013904) | 0.396831 / 0.258489 (0.138342) | 0.438280 / 0.293841 (0.144439) | 0.027743 / 0.128546 (-0.100804) | 0.008068 / 0.075646 (-0.067578) | 0.262541 / 0.419271 (-0.156730) | 0.060837 / 0.043533 (0.017304) | 0.397941 / 0.255139 (0.142802) | 0.417012 / 0.283200 (0.133813) | 0.030153 / 0.141683 (-0.111530) | 1.477115 / 1.452155 (0.024960) | 1.516642 / 1.492716 (0.023926) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.178032 / 0.018006 (0.160026) | 0.445775 / 0.000490 (0.445286) | 0.004275 / 0.000200 (0.004075) | 0.000080 / 0.000054 (0.000026) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025025 / 0.037411 (-0.012386) | 0.074113 / 0.014526 (0.059587) | 0.083814 / 0.176557 (-0.092743) | 0.148860 / 0.737135 (-0.588275) | 0.085408 / 0.296338 (-0.210931) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.393714 / 0.215209 (0.178505) | 3.936589 / 2.077655 (1.858934) | 1.910501 / 1.504120 (0.406381) | 1.729670 / 1.541195 (0.188475) | 1.777647 / 1.468490 (0.309156) | 0.499532 / 4.584777 (-4.085245) | 3.002385 / 3.745712 (-0.743327) | 2.906916 / 5.269862 (-2.362945) | 1.883321 / 4.565676 (-2.682356) | 0.057546 / 0.424275 (-0.366730) | 0.006492 / 0.007607 (-0.001115) | 0.463605 / 0.226044 (0.237560) | 4.620215 / 2.268929 (2.351287) | 2.399021 / 55.444624 (-53.045603) | 2.182962 / 6.876477 (-4.693514) | 2.357344 / 2.142072 (0.215272) | 0.583946 / 4.805227 (-4.221282) | 0.124644 / 6.500664 (-6.376021) | 0.060831 / 0.075469 (-0.014638) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.276412 / 1.841788 (-0.565375) | 18.462522 / 8.074308 (10.388214) | 13.877375 / 10.191392 (3.685983) | 0.150584 / 0.680424 (-0.529840) | 0.016675 / 0.534201 (-0.517526) | 0.331711 / 0.579283 (-0.247573) | 0.366659 / 0.434364 (-0.067705) | 0.396400 / 0.540337 (-0.143938) | 0.555418 / 1.386936 (-0.831518) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.005995 / 0.011353 (-0.005358) | 0.003610 / 0.011008 (-0.007399) | 0.061802 / 0.038508 (0.023294) | 0.059265 / 0.023109 (0.036156) | 0.392628 / 0.275898 (0.116730) | 0.413143 / 0.323480 (0.089663) | 0.004687 / 0.007986 (-0.003299) | 0.002843 / 0.004328 (-0.001486) | 0.061932 / 0.004250 (0.057682) | 0.049466 / 0.037052 (0.012413) | 0.402718 / 0.258489 (0.144229) | 0.415039 / 0.293841 (0.121198) | 0.027352 / 0.128546 (-0.101194) | 0.007965 / 0.075646 (-0.067682) | 0.067456 / 0.419271 (-0.351815) | 0.042336 / 0.043533 (-0.001196) | 0.405543 / 0.255139 (0.150404) | 0.403209 / 0.283200 (0.120010) | 0.021459 / 0.141683 (-0.120224) | 1.442861 / 1.452155 (-0.009293) | 1.491213 / 1.492716 (-0.001503) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.248225 / 0.018006 (0.230219) | 0.434174 / 0.000490 (0.433684) | 0.001973 / 0.000200 (0.001773) | 0.000070 / 0.000054 (0.000015) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025475 / 0.037411 (-0.011936) | 0.077865 / 0.014526 (0.063339) | 0.086980 / 0.176557 (-0.089577) | 0.143682 / 0.737135 (-0.593453) | 0.088634 / 0.296338 (-0.207705) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.417591 / 0.215209 (0.202382) | 4.168700 / 2.077655 (2.091045) | 2.335743 / 1.504120 (0.831623) | 2.208174 / 1.541195 (0.666980) | 2.256658 / 1.468490 (0.788168) | 0.503164 / 4.584777 (-4.081613) | 3.026667 / 3.745712 (-0.719045) | 4.496675 / 5.269862 (-0.773187) | 2.741049 / 4.565676 (-1.824628) | 0.057781 / 0.424275 (-0.366494) | 0.006810 / 0.007607 (-0.000797) | 0.490803 / 0.226044 (0.264759) | 4.914369 / 2.268929 (2.645441) | 2.594250 / 55.444624 (-52.850375) | 2.274552 / 6.876477 (-4.601925) | 2.397529 / 2.142072 (0.255456) | 0.593008 / 4.805227 (-4.212220) | 0.126194 / 6.500664 (-6.374470) | 0.062261 / 0.075469 (-0.013208) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.357561 / 1.841788 (-0.484227) | 18.622995 / 8.074308 (10.548687) | 14.142569 / 10.191392 (3.951177) | 0.146527 / 0.680424 (-0.533897) | 0.016863 / 0.534201 (-0.517338) | 0.336219 / 0.579283 (-0.243064) | 0.348650 / 0.434364 (-0.085714) | 0.385958 / 0.540337 (-0.154380) | 0.517958 / 1.386936 (-0.868978) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#f3da7a5a7d0d0415476ecebb0458e7c60df24445 \"CML watermark\")\n" ]

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[ "Hi ! I opened https://github.com/huggingface/datasets/pull/6067 to add the missing `_lock`\r\n\r\nWe'll do a patch release soon, but feel free to install `datasets` from source in the meantime", "I have tested the latest main, it does not work.\r\n\r\nI add more logs to reproduce this issue, it looks like a multi threading bug:\r\n\r\n```python\r\n@contextmanager\r\ndef ensure_lock(tqdm_class, lock_name=\"\"):\r\n \"\"\"get (create if necessary) and then restore `tqdm_class`'s lock\"\"\"\r\n import os\r\n import threading\r\n print(os.getpid(), threading.get_ident(), \"ensure_lock\", tqdm_class, lock_name)\r\n old_lock = getattr(tqdm_class, '_lock', None) # don't create a new lock\r\n lock = old_lock or tqdm_class.get_lock() # maybe create a new lock\r\n lock = getattr(lock, lock_name, lock) # maybe subtype\r\n tqdm_class.set_lock(lock)\r\n print(os.getpid(), threading.get_ident(), \"set_lock\")\r\n yield lock\r\n if old_lock is None:\r\n print(os.getpid(), threading.get_ident(), \"del tqdm_class\")\r\n del tqdm_class._lock\r\n else:\r\n tqdm_class.set_lock(old_lock)\r\n```\r\noutput\r\n```\r\n64943 8424758784 ensure_lock <datasets.utils.logging._tqdm_cls object at 0x2aa7fb250> \r\n64943 8424758784 set_lock\r\n64943 8424758784 del tqdm_class\r\n64943 8424758784 ensure_lock <datasets.utils.logging._tqdm_cls object at 0x2aa7fb250> \r\n64943 8424758784 set_lock\r\n64943 8424758784 del tqdm_class\r\n64943 11638370304 ensure_lock <datasets.utils.logging._tqdm_cls object at 0x2aa7fb250> \r\n64943 11638370304 set_lock\r\n64943 11568967680 ensure_lock <datasets.utils.logging._tqdm_cls object at 0x2aa7fb250> \r\n64943 11568967680 set_lock\r\n64943 11638370304 del tqdm_class\r\n64943 11638370304 ensure_lock <datasets.utils.logging._tqdm_cls object at 0x2aa7fb250> \r\n64943 11638370304 set_lock\r\n64943 11638370304 del tqdm_class\r\n64943 11568967680 del tqdm_class\r\n```\r\n\r\nThread `11638370304` del the _lock from tqdm_class first, then thread `11568967680` del _lock failed.", "Maybe it is a bug of tqdm? I think simply use `try ... except AttributeError ...` wraps `del tqdm_class._lock` should work.", "Yes it looks like a bug on their end indeed, do you want to open a PR on tqdm ?\r\n\r\nLet me see if I can find a workaround in the meantime", "I opened https://github.com/huggingface/datasets/pull/6068 if you want to try it out", "> I opened #6068 if you want to try it out\r\n\r\nThis fix works! Thanks.", "Awesome ! closing this then :)\r\nWe'll do a patch release today or tomorrow" ]

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[ "Thanks for working on this. However, having thought about this issue a bit more, supporting this doesn't seem like a good idea - it's better to be explicit than implicit, according to the Zen of Python 🙂. Also, I don't think many users would use this, so this raises the question of whether this is something we want to maintain.\r\n\r\ncc @lhoestq for the 2nd opinion", "@mariosasko I was going to quote the Zen of Python in the other direction :) To me, this actually is much more explicit than the current behavior of guessing pyarrow types based on the raw dictionary return values. Explicit typehinting is increasingly the de facto way to deal with this dynamic type serialization - plus it feels like a clearer fit to me than separating out the mapper function from the feature column definition in the call to the actual `.map()`. Another benefit is providing typehinting support for clients that use mypy or other static typecheckers to detect return mismatches.\r\n\r\nBut will leave it to you and @lhoestq to see if it's something you'd like in core versus a support package.", "I meant that explicitly specifying the target features (the `features` param) is cleaner (easier to track) than relying on type hints.", "Passing features= to `map()` is richer and more explicit. Also I don't think users would guess that such API exist.\r\n\r\nOther libraries like dask also infer the type from the output or requires the typing to be specified using the `meta` argument", "Point about discoverability is a fair one, would certainly need some docs around it. All good! Will close this out and keep in our extension utilities." ]

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