Title: Spark docs
Author: lhoestq (MEMBER)
State: closed
Created: 2023-04-26T17:39:43Z

Added a "Use with Spark" doc page to document `Dataset.from_spark` following https://github.com/huggingface/datasets/pull/5701

cc @maddiedawson

Comments:
_The documentation is not available anymore as the PR was closed or merged._

<details>
<summary>Show benchmarks</summary>

PyArrow==8.0.0

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.010480 / 0.011353 (-0.000872) | 0.006743 / 0.011008 (-0.004265) | 0.126503 / 0.038508 (0.087995) | 0.036918 / 0.023109 (0.013808) | 0.387372 / 0.275898 (0.111474) | 0.456930 / 0.323480 (0.133450) | 0.008038 / 0.007986 (0.000052) | 0.005082 / 0.004328 (0.000753) | 0.093312 / 0.004250 (0.089062) | 0.065440 / 0.037052 (0.028387) | 0.378172 / 0.258489 (0.119683) | 0.430049 / 0.293841 (0.136208) | 0.054372 / 0.128546 (-0.074174) | 0.021875 / 0.075646 (-0.053772) | 0.441722 / 0.419271 (0.022450) | 0.063716 / 0.043533 (0.020183) | 0.375718 / 0.255139 (0.120579) | 0.413688 / 0.283200 (0.130488) | 0.122583 / 0.141683 (-0.019100) | 1.835992 / 1.452155 (0.383838) | 1.915862 / 1.492716 (0.423145) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.275305 / 0.018006 (0.257299) | 0.617170 / 0.000490 (0.616680) | 0.006467 / 0.000200 (0.006267) | 0.000117 / 0.000054 (0.000063) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.031057 / 0.037411 (-0.006354) | 0.135178 / 0.014526 (0.120653) | 0.139265 / 0.176557 (-0.037292) | 0.221597 / 0.737135 (-0.515538) | 0.147632 / 0.296338 (-0.148706) |

### Benchmark: benchmark_iterating.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.640621 / 0.215209 (0.425411) | 6.354359 / 2.077655 (4.276704) | 2.748945 / 1.504120 (1.244825) | 2.396637 / 1.541195 (0.855442) | 2.395193 / 1.468490 (0.926703) | 1.209604 / 4.584777 (-3.375173) | 5.626901 / 3.745712 (1.881189) | 3.300941 / 5.269862 (-1.968920) | 2.123598 / 4.565676 (-2.442078) | 0.144270 / 0.424275 (-0.280005) | 0.015114 / 0.007607 (0.007507) | 0.812352 / 0.226044 (0.586307) | 8.024250 / 2.268929 (5.755322) | 3.557589 / 55.444624 (-51.887036) | 2.840632 / 6.876477 (-4.035845) | 3.152319 / 2.142072 (1.010246) | 1.447232 / 4.805227 (-3.357995) | 0.251740 / 6.500664 (-6.248924) | 0.083725 / 0.075469 (0.008256) |

### Benchmark: benchmark_map_filter.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 1.568032 / 1.841788 (-0.273755) | 18.463860 / 8.074308 (10.389552) | 21.217395 / 10.191392 (11.026003) | 0.228457 / 0.680424 (-0.451967) | 0.031398 / 0.534201 (-0.502803) | 0.547627 / 0.579283 (-0.031656) | 0.642921 / 0.434364 (0.208557) | 0.687857 / 0.540337 (0.147520) | 0.800940 / 1.386936 (-0.585996) |

</details>
PyArrow==latest

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.009933 / 0.011353 (-0.001420) | 0.006065 / 0.011008 (-0.004943) | 0.102556 / 0.038508 (0.064048) | 0.034646 / 0.023109 (0.011537) | 0.437951 / 0.275898 (0.162053) | 0.482439 / 0.323480 (0.158959) | 0.007715 / 0.007986 (-0.000271) | 0.007426 / 0.004328 (0.003098) | 0.096427 / 0.004250 (0.092177) | 0.052983 / 0.037052 (0.015930) | 0.464533 / 0.258489 (0.206044) | 0.484848 / 0.293841 (0.191007) | 0.050415 / 0.128546 (-0.078131) | 0.021001 / 0.075646 (-0.054645) | 0.121214 / 0.419271 (-0.298058) | 0.061658 / 0.043533 (0.018125) | 0.431898 / 0.255139 (0.176759) | 0.482106 / 0.283200 (0.198907) | 0.128524 / 0.141683 (-0.013159) | 1.775714 / 1.452155 (0.323559) | 1.904738 / 1.492716 (0.412021) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.287641 / 0.018006 (0.269635) | 0.600667 / 0.000490 (0.600178) | 0.005097 / 0.000200 (0.004897) | 0.000112 / 0.000054 (0.000057) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.032836 / 0.037411 (-0.004575) | 0.133114 / 0.014526 (0.118588) | 0.150874 / 0.176557 (-0.025683) | 0.217069 / 0.737135 (-0.520066) | 0.160387 / 0.296338 (-0.135951) |

### Benchmark: benchmark_iterating.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.668444 / 0.215209 (0.453235) | 6.240015 / 2.077655 (4.162360) | 2.808661 / 1.504120 (1.304542) | 2.336550 / 1.541195 (0.795356) | 2.538973 / 1.468490 (1.070483) | 1.189292 / 4.584777 (-3.395485) | 5.781028 / 3.745712 (2.035315) | 3.149895 / 5.269862 (-2.119967) | 2.130646 / 4.565676 (-2.435030) | 0.144944 / 0.424275 (-0.279331) | 0.014650 / 0.007607 (0.007043) | 0.792313 / 0.226044 (0.566269) | 7.933108 / 2.268929 (5.664180) | 3.527527 / 55.444624 (-51.917098) | 2.864271 / 6.876477 (-4.012205) | 3.098330 / 2.142072 (0.956258) | 1.421208 / 4.805227 (-3.384019) | 0.255638 / 6.500664 (-6.245026) | 0.086971 / 0.075469 (0.011502) |

### Benchmark: benchmark_map_filter.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 1.585317 / 1.841788 (-0.256471) | 18.643133 / 8.074308 (10.568825) | 21.921256 / 10.191392 (11.729864) | 0.215493 / 0.680424 (-0.464931) | 0.028348 / 0.534201 (-0.505853) | 0.556925 / 0.579283 (-0.022358) | 0.631480 / 0.434364 (0.197116) | 0.654026 / 0.540337 (0.113689) | 0.799727 / 1.386936 (-0.587209) |

</details>
</details>

![](https://cml.dev/watermark.png#62520514b524b5904c7e4f0beddab1971212a96a "CML watermark")


<details>
<summary>Show benchmarks</summary>

PyArrow==8.0.0

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.006516 / 0.011353 (-0.004837) | 0.004500 / 0.011008 (-0.006509) | 0.097639 / 0.038508 (0.059131) | 0.028336 / 0.023109 (0.005227) | 0.377263 / 0.275898 (0.101365) | 0.409209 / 0.323480 (0.085729) | 0.004832 / 0.007986 (-0.003154) | 0.004629 / 0.004328 (0.000301) | 0.075046 / 0.004250 (0.070795) | 0.034080 / 0.037052 (-0.002972) | 0.377565 / 0.258489 (0.119076) | 0.419204 / 0.293841 (0.125363) | 0.030343 / 0.128546 (-0.098203) | 0.011465 / 0.075646 (-0.064182) | 0.322777 / 0.419271 (-0.096494) | 0.043774 / 0.043533 (0.000241) | 0.375808 / 0.255139 (0.120669) | 0.402665 / 0.283200 (0.119465) | 0.086811 / 0.141683 (-0.054872) | 1.518686 / 1.452155 (0.066531) | 1.540381 / 1.492716 (0.047664) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.197730 / 0.018006 (0.179724) | 0.409285 / 0.000490 (0.408795) | 0.004739 / 0.000200 (0.004539) | 0.000084 / 0.000054 (0.000029) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.022974 / 0.037411 (-0.014437) | 0.096843 / 0.014526 (0.082317) | 0.103241 / 0.176557 (-0.073316) | 0.163691 / 0.737135 (-0.573444) | 0.107905 / 0.296338 (-0.188433) |

### Benchmark: benchmark_iterating.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.449408 / 0.215209 (0.234199) | 4.501375 / 2.077655 (2.423720) | 2.181491 / 1.504120 (0.677371) | 1.986153 / 1.541195 (0.444958) | 2.024735 / 1.468490 (0.556245) | 0.695368 / 4.584777 (-3.889409) | 3.416912 / 3.745712 (-0.328800) | 1.893343 / 5.269862 (-3.376519) | 1.275535 / 4.565676 (-3.290142) | 0.082772 / 0.424275 (-0.341503) | 0.012365 / 0.007607 (0.004758) | 0.553859 / 0.226044 (0.327814) | 5.540014 / 2.268929 (3.271085) | 2.634298 / 55.444624 (-52.810326) | 2.286686 / 6.876477 (-4.589790) | 2.384402 / 2.142072 (0.242330) | 0.806413 / 4.805227 (-3.998814) | 0.151757 / 6.500664 (-6.348907) | 0.067155 / 0.075469 (-0.008314) |

### Benchmark: benchmark_map_filter.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 1.198776 / 1.841788 (-0.643012) | 13.517434 / 8.074308 (5.443126) | 13.926300 / 10.191392 (3.734908) | 0.141887 / 0.680424 (-0.538537) | 0.016571 / 0.534201 (-0.517630) | 0.383179 / 0.579283 (-0.196104) | 0.395189 / 0.434364 (-0.039175) | 0.479635 / 0.540337 (-0.060702) | 0.570576 / 1.386936 (-0.816360) |

</details>
PyArrow==latest

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.006691 / 0.011353 (-0.004662) | 0.004634 / 0.011008 (-0.006375) | 0.077087 / 0.038508 (0.038579) | 0.028281 / 0.023109 (0.005172) | 0.340108 / 0.275898 (0.064210) | 0.370611 / 0.323480 (0.047131) | 0.004997 / 0.007986 (-0.002988) | 0.003336 / 0.004328 (-0.000992) | 0.074814 / 0.004250 (0.070563) | 0.039001 / 0.037052 (0.001948) | 0.344225 / 0.258489 (0.085736) | 0.380621 / 0.293841 (0.086780) | 0.030858 / 0.128546 (-0.097689) | 0.011623 / 0.075646 (-0.064023) | 0.085016 / 0.419271 (-0.334256) | 0.042378 / 0.043533 (-0.001155) | 0.341428 / 0.255139 (0.086289) | 0.364823 / 0.283200 (0.081624) | 0.096695 / 0.141683 (-0.044988) | 1.527683 / 1.452155 (0.075528) | 1.585361 / 1.492716 (0.092645) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.184280 / 0.018006 (0.166274) | 0.397845 / 0.000490 (0.397355) | 0.004415 / 0.000200 (0.004215) | 0.000074 / 0.000054 (0.000020) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.024296 / 0.037411 (-0.013115) | 0.101053 / 0.014526 (0.086527) | 0.108968 / 0.176557 (-0.067589) | 0.155732 / 0.737135 (-0.581403) | 0.112604 / 0.296338 (-0.183735) |

### Benchmark: benchmark_iterating.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.440819 / 0.215209 (0.225609) | 4.394017 / 2.077655 (2.316363) | 2.092456 / 1.504120 (0.588336) | 1.880186 / 1.541195 (0.338991) | 1.918035 / 1.468490 (0.449545) | 0.698059 / 4.584777 (-3.886718) | 3.422598 / 3.745712 (-0.323114) | 1.860465 / 5.269862 (-3.409396) | 1.157788 / 4.565676 (-3.407889) | 0.083566 / 0.424275 (-0.340709) | 0.012440 / 0.007607 (0.004832) | 0.549526 / 0.226044 (0.323481) | 5.500623 / 2.268929 (3.231694) | 2.546980 / 55.444624 (-52.897644) | 2.199527 / 6.876477 (-4.676949) | 2.297276 / 2.142072 (0.155203) | 0.801580 / 4.805227 (-4.003648) | 0.151842 / 6.500664 (-6.348822) | 0.067165 / 0.075469 (-0.008305) |

### Benchmark: benchmark_map_filter.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 1.329097 / 1.841788 (-0.512691) | 13.830354 / 8.074308 (5.756046) | 14.155250 / 10.191392 (3.963858) | 0.144517 / 0.680424 (-0.535907) | 0.016738 / 0.534201 (-0.517463) | 0.379337 / 0.579283 (-0.199946) | 0.391382 / 0.434364 (-0.042982) | 0.459153 / 0.540337 (-0.081184) | 0.547287 / 1.386936 (-0.839649) |

</details>
</details>

![](https://cml.dev/watermark.png#2efb0289c887ec60d54e0715cd85c111cb45f9ee "CML watermark")


<details>
<summary>Show benchmarks</summary>

PyArrow==8.0.0

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.007176 / 0.011353 (-0.004177) | 0.005125 / 0.011008 (-0.005883) | 0.096060 / 0.038508 (0.057552) | 0.033262 / 0.023109 (0.010152) | 0.311461 / 0.275898 (0.035563) | 0.340673 / 0.323480 (0.017193) | 0.005700 / 0.007986 (-0.002286) | 0.005223 / 0.004328 (0.000894) | 0.072812 / 0.004250 (0.068561) | 0.042078 / 0.037052 (0.005025) | 0.320042 / 0.258489 (0.061553) | 0.346539 / 0.293841 (0.052698) | 0.035284 / 0.128546 (-0.093262) | 0.012021 / 0.075646 (-0.063625) | 0.331555 / 0.419271 (-0.087717) | 0.051058 / 0.043533 (0.007525) | 0.303001 / 0.255139 (0.047862) | 0.328431 / 0.283200 (0.045231) | 0.100954 / 0.141683 (-0.040729) | 1.407445 / 1.452155 (-0.044710) | 1.512826 / 1.492716 (0.020110) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.216442 / 0.018006 (0.198436) | 0.446298 / 0.000490 (0.445809) | 0.004701 / 0.000200 (0.004501) | 0.000084 / 0.000054 (0.000030) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.028088 / 0.037411 (-0.009324) | 0.108669 / 0.014526 (0.094144) | 0.119597 / 0.176557 (-0.056960) | 0.178249 / 0.737135 (-0.558886) | 0.123914 / 0.296338 (-0.172424) |

### Benchmark: benchmark_iterating.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.413437 / 0.215209 (0.198228) | 4.136602 / 2.077655 (2.058947) | 1.875872 / 1.504120 (0.371752) | 1.680783 / 1.541195 (0.139588) | 1.757059 / 1.468490 (0.288569) | 0.711080 / 4.584777 (-3.873697) | 3.791701 / 3.745712 (0.045989) | 2.111612 / 5.269862 (-3.158250) | 1.351204 / 4.565676 (-3.214473) | 0.086477 / 0.424275 (-0.337798) | 0.012359 / 0.007607 (0.004752) | 0.504984 / 0.226044 (0.278940) | 5.040456 / 2.268929 (2.771527) | 2.266946 / 55.444624 (-53.177679) | 1.957827 / 6.876477 (-4.918650) | 2.120490 / 2.142072 (-0.021583) | 0.856148 / 4.805227 (-3.949079) | 0.172414 / 6.500664 (-6.328250) | 0.066833 / 0.075469 (-0.008636) |

### Benchmark: benchmark_map_filter.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 1.198163 / 1.841788 (-0.643625) | 14.944930 / 8.074308 (6.870622) | 14.317196 / 10.191392 (4.125804) | 0.166104 / 0.680424 (-0.514320) | 0.017443 / 0.534201 (-0.516758) | 0.423025 / 0.579283 (-0.156258) | 0.437476 / 0.434364 (0.003112) | 0.500156 / 0.540337 (-0.040181) | 0.606226 / 1.386936 (-0.780710) |

</details>
PyArrow==latest

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.007417 / 0.011353 (-0.003936) | 0.005143 / 0.011008 (-0.005865) | 0.076401 / 0.038508 (0.037893) | 0.034818 / 0.023109 (0.011709) | 0.339633 / 0.275898 (0.063735) | 0.373839 / 0.323480 (0.050359) | 0.006004 / 0.007986 (-0.001982) | 0.005403 / 0.004328 (0.001075) | 0.074150 / 0.004250 (0.069899) | 0.050489 / 0.037052 (0.013436) | 0.343357 / 0.258489 (0.084868) | 0.377009 / 0.293841 (0.083168) | 0.035921 / 0.128546 (-0.092625) | 0.012197 / 0.075646 (-0.063449) | 0.087992 / 0.419271 (-0.331279) | 0.049452 / 0.043533 (0.005919) | 0.340495 / 0.255139 (0.085356) | 0.360277 / 0.283200 (0.077077) | 0.111114 / 0.141683 (-0.030569) | 1.463888 / 1.452155 (0.011734) | 1.548320 / 1.492716 (0.055604) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.228437 / 0.018006 (0.210431) | 0.445120 / 0.000490 (0.444631) | 0.000392 / 0.000200 (0.000192) | 0.000058 / 0.000054 (0.000004) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.029965 / 0.037411 (-0.007446) | 0.113484 / 0.014526 (0.098958) | 0.125249 / 0.176557 (-0.051308) | 0.177201 / 0.737135 (-0.559934) | 0.128750 / 0.296338 (-0.167589) |

### Benchmark: benchmark_iterating.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.420089 / 0.215209 (0.204880) | 4.195772 / 2.077655 (2.118117) | 2.021539 / 1.504120 (0.517419) | 1.825118 / 1.541195 (0.283924) | 1.904090 / 1.468490 (0.435600) | 0.716276 / 4.584777 (-3.868501) | 3.742257 / 3.745712 (-0.003455) | 3.368880 / 5.269862 (-1.900981) | 1.728285 / 4.565676 (-2.837392) | 0.087656 / 0.424275 (-0.336619) | 0.012263 / 0.007607 (0.004656) | 0.524321 / 0.226044 (0.298277) | 5.217610 / 2.268929 (2.948682) | 2.474670 / 55.444624 (-52.969955) | 2.135452 / 6.876477 (-4.741025) | 2.292578 / 2.142072 (0.150505) | 0.852109 / 4.805227 (-3.953119) | 0.172031 / 6.500664 (-6.328633) | 0.065230 / 0.075469 (-0.010240) |

### Benchmark: benchmark_map_filter.json

| 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 |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 1.260494 / 1.841788 (-0.581293) | 15.019167 / 8.074308 (6.944859) | 14.647586 / 10.191392 (4.456193) | 0.170578 / 0.680424 (-0.509846) | 0.017619 / 0.534201 (-0.516582) | 0.423116 / 0.579283 (-0.156167) | 0.426680 / 0.434364 (-0.007684) | 0.519563 / 0.540337 (-0.020775) | 0.619335 / 1.386936 (-0.767601) |

</details>
</details>

![](https://cml.dev/watermark.png#e210dc20c19b5e6af05df9ca6e82984dfb42465f "CML watermark")