Release: 2.10.0
State: closed


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

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

PyArrow==6.0.0

<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) | 0.009437 / 0.011353 (-0.001916) | 0.004999 / 0.011008 (-0.006010) | 0.098839 / 0.038508 (0.060331) | 0.035496 / 0.023109 (0.012386) | 0.300726 / 0.275898 (0.024828) | 0.359793 / 0.323480 (0.036313) | 0.007694 / 0.007986 (-0.000292) | 0.003980 / 0.004328 (-0.000348) | 0.075240 / 0.004250 (0.070989) | 0.041149 / 0.037052 (0.004097) | 0.313185 / 0.258489 (0.054696) | 0.344111 / 0.293841 (0.050270) | 0.037775 / 0.128546 (-0.090772) | 0.011901 / 0.075646 (-0.063745) | 0.332631 / 0.419271 (-0.086641) | 0.047194 / 0.043533 (0.003661) | 0.306902 / 0.255139 (0.051763) | 0.321725 / 0.283200 (0.038525) | 0.101031 / 0.141683 (-0.040652) | 1.458778 / 1.452155 (0.006623) | 1.530196 / 1.492716 (0.037480) |

### 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) | 0.203241 / 0.018006 (0.185235) | 0.447147 / 0.000490 (0.446657) | 0.004159 / 0.000200 (0.003959) | 0.000131 / 0.000054 (0.000076) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.025845 / 0.037411 (-0.011566) | 0.106966 / 0.014526 (0.092440) | 0.115876 / 0.176557 (-0.060681) | 0.179052 / 0.737135 (-0.558084) | 0.123012 / 0.296338 (-0.173327) |

### 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) | 0.408766 / 0.215209 (0.193557) | 4.080400 / 2.077655 (2.002745) | 1.893747 / 1.504120 (0.389627) | 1.709389 / 1.541195 (0.168194) | 1.768071 / 1.468490 (0.299581) | 0.689717 / 4.584777 (-3.895059) | 3.760897 / 3.745712 (0.015185) | 2.017050 / 5.269862 (-3.252811) | 1.333027 / 4.565676 (-3.232650) | 0.083559 / 0.424275 (-0.340716) | 0.011951 / 0.007607 (0.004344) | 0.512313 / 0.226044 (0.286268) | 5.162696 / 2.268929 (2.893767) | 2.418559 / 55.444624 (-53.026065) | 2.110178 / 6.876477 (-4.766299) | 2.113635 / 2.142072 (-0.028437) | 0.835171 / 4.805227 (-3.970056) | 0.164222 / 6.500664 (-6.336442) | 0.061955 / 0.075469 (-0.013515) |

### 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) | 1.198336 / 1.841788 (-0.643452) | 14.531468 / 8.074308 (6.457160) | 13.882133 / 10.191392 (3.690741) | 0.154524 / 0.680424 (-0.525900) | 0.028782 / 0.534201 (-0.505419) | 0.441808 / 0.579283 (-0.137475) | 0.433096 / 0.434364 (-0.001268) | 0.518229 / 0.540337 (-0.022108) | 0.603201 / 1.386936 (-0.783735) |

</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) | 0.007385 / 0.011353 (-0.003967) | 0.005193 / 0.011008 (-0.005815) | 0.075517 / 0.038508 (0.037009) | 0.033192 / 0.023109 (0.010083) | 0.332299 / 0.275898 (0.056401) | 0.363043 / 0.323480 (0.039563) | 0.006368 / 0.007986 (-0.001617) | 0.004003 / 0.004328 (-0.000326) | 0.073710 / 0.004250 (0.069460) | 0.046916 / 0.037052 (0.009863) | 0.336307 / 0.258489 (0.077818) | 0.384910 / 0.293841 (0.091069) | 0.038132 / 0.128546 (-0.090414) | 0.012283 / 0.075646 (-0.063364) | 0.088036 / 0.419271 (-0.331235) | 0.049699 / 0.043533 (0.006166) | 0.333953 / 0.255139 (0.078814) | 0.352961 / 0.283200 (0.069762) | 0.101905 / 0.141683 (-0.039778) | 1.470480 / 1.452155 (0.018325) | 1.498212 / 1.492716 (0.005496) |

### 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) | 0.275067 / 0.018006 (0.257061) | 0.452589 / 0.000490 (0.452099) | 0.047067 / 0.000200 (0.046867) | 0.000983 / 0.000054 (0.000929) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.028649 / 0.037411 (-0.008762) | 0.108385 / 0.014526 (0.093859) | 0.121213 / 0.176557 (-0.055343) | 0.192236 / 0.737135 (-0.544899) | 0.124620 / 0.296338 (-0.171719) |

### 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) | 0.428742 / 0.215209 (0.213533) | 4.264893 / 2.077655 (2.187238) | 2.061650 / 1.504120 (0.557530) | 1.873267 / 1.541195 (0.332072) | 1.961012 / 1.468490 (0.492522) | 0.708904 / 4.584777 (-3.875873) | 3.821289 / 3.745712 (0.075577) | 3.287231 / 5.269862 (-1.982631) | 1.903539 / 4.565676 (-2.662137) | 0.086474 / 0.424275 (-0.337801) | 0.012101 / 0.007607 (0.004494) | 0.531411 / 0.226044 (0.305367) | 5.216785 / 2.268929 (2.947857) | 2.575209 / 55.444624 (-52.869416) | 2.264902 / 6.876477 (-4.611574) | 2.291225 / 2.142072 (0.149153) | 0.853486 / 4.805227 (-3.951741) | 0.168550 / 6.500664 (-6.332114) | 0.064158 / 0.075469 (-0.011311) |

### 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) | 1.295830 / 1.841788 (-0.545958) | 14.419524 / 8.074308 (6.345216) | 13.397985 / 10.191392 (3.206593) | 0.181367 / 0.680424 (-0.499057) | 0.017666 / 0.534201 (-0.516535) | 0.420645 / 0.579283 (-0.158638) | 0.421025 / 0.434364 (-0.013339) | 0.527369 / 0.540337 (-0.012969) | 0.627175 / 1.386936 (-0.759761) |

</details>
</details>

![](https://cml.dev/watermark.png#589b49dfaffa729bc9997a38d4cedafb107ea2e4 "CML watermark")


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

PyArrow==6.0.0

<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) | 0.008717 / 0.011353 (-0.002635) | 0.004573 / 0.011008 (-0.006435) | 0.103660 / 0.038508 (0.065151) | 0.035274 / 0.023109 (0.012165) | 0.298563 / 0.275898 (0.022665) | 0.384397 / 0.323480 (0.060917) | 0.006932 / 0.007986 (-0.001053) | 0.003422 / 0.004328 (-0.000907) | 0.080193 / 0.004250 (0.075943) | 0.039767 / 0.037052 (0.002714) | 0.310296 / 0.258489 (0.051807) | 0.351361 / 0.293841 (0.057520) | 0.033532 / 0.128546 (-0.095014) | 0.011543 / 0.075646 (-0.064104) | 0.374816 / 0.419271 (-0.044456) | 0.046046 / 0.043533 (0.002513) | 0.306918 / 0.255139 (0.051779) | 0.382242 / 0.283200 (0.099042) | 0.098945 / 0.141683 (-0.042738) | 1.456929 / 1.452155 (0.004775) | 1.535763 / 1.492716 (0.043046) |

### 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) | 0.011759 / 0.018006 (-0.006247) | 0.405345 / 0.000490 (0.404855) | 0.002667 / 0.000200 (0.002467) | 0.000075 / 0.000054 (0.000020) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.023924 / 0.037411 (-0.013487) | 0.095537 / 0.014526 (0.081011) | 0.106959 / 0.176557 (-0.069598) | 0.170782 / 0.737135 (-0.566353) | 0.109169 / 0.296338 (-0.187170) |

### 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) | 0.437521 / 0.215209 (0.222312) | 4.383556 / 2.077655 (2.305902) | 2.092055 / 1.504120 (0.587935) | 1.889316 / 1.541195 (0.348121) | 1.937436 / 1.468490 (0.468946) | 0.700175 / 4.584777 (-3.884602) | 3.358107 / 3.745712 (-0.387605) | 3.243226 / 5.269862 (-2.026636) | 1.620497 / 4.565676 (-2.945180) | 0.083063 / 0.424275 (-0.341212) | 0.012970 / 0.007607 (0.005363) | 0.544226 / 0.226044 (0.318181) | 5.483315 / 2.268929 (3.214386) | 2.555183 / 55.444624 (-52.889441) | 2.204230 / 6.876477 (-4.672247) | 2.230551 / 2.142072 (0.088478) | 0.816121 / 4.805227 (-3.989106) | 0.151356 / 6.500664 (-6.349308) | 0.068564 / 0.075469 (-0.006905) |

### 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) | 1.208420 / 1.841788 (-0.633367) | 13.652597 / 8.074308 (5.578289) | 14.096318 / 10.191392 (3.904926) | 0.154473 / 0.680424 (-0.525951) | 0.028436 / 0.534201 (-0.505765) | 0.399949 / 0.579283 (-0.179334) | 0.398961 / 0.434364 (-0.035403) | 0.488703 / 0.540337 (-0.051634) | 0.572640 / 1.386936 (-0.814296) |

</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) | 0.006373 / 0.011353 (-0.004979) | 0.004368 / 0.011008 (-0.006640) | 0.076410 / 0.038508 (0.037902) | 0.027055 / 0.023109 (0.003945) | 0.336969 / 0.275898 (0.061071) | 0.374533 / 0.323480 (0.051053) | 0.004781 / 0.007986 (-0.003204) | 0.003317 / 0.004328 (-0.001011) | 0.076099 / 0.004250 (0.071849) | 0.038414 / 0.037052 (0.001361) | 0.339578 / 0.258489 (0.081089) | 0.384138 / 0.293841 (0.090297) | 0.031581 / 0.128546 (-0.096965) | 0.011666 / 0.075646 (-0.063981) | 0.085690 / 0.419271 (-0.333582) | 0.042277 / 0.043533 (-0.001256) | 0.337931 / 0.255139 (0.082792) | 0.365827 / 0.283200 (0.082628) | 0.088713 / 0.141683 (-0.052970) | 1.519789 / 1.452155 (0.067635) | 1.583097 / 1.492716 (0.090381) |

### 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) | 0.223472 / 0.018006 (0.205466) | 0.392474 / 0.000490 (0.391984) | 0.002739 / 0.000200 (0.002539) | 0.000076 / 0.000054 (0.000021) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.024373 / 0.037411 (-0.013038) | 0.099822 / 0.014526 (0.085296) | 0.106128 / 0.176557 (-0.070428) | 0.174688 / 0.737135 (-0.562447) | 0.112660 / 0.296338 (-0.183678) |

### 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) | 0.436317 / 0.215209 (0.221108) | 4.358277 / 2.077655 (2.280622) | 2.089746 / 1.504120 (0.585626) | 1.881040 / 1.541195 (0.339845) | 1.923653 / 1.468490 (0.455163) | 0.698176 / 4.584777 (-3.886601) | 3.346460 / 3.745712 (-0.399252) | 3.301429 / 5.269862 (-1.968433) | 1.391042 / 4.565676 (-3.174634) | 0.083025 / 0.424275 (-0.341250) | 0.012459 / 0.007607 (0.004851) | 0.533011 / 0.226044 (0.306967) | 5.334984 / 2.268929 (3.066056) | 2.534105 / 55.444624 (-52.910520) | 2.206295 / 6.876477 (-4.670181) | 2.231752 / 2.142072 (0.089680) | 0.798650 / 4.805227 (-4.006577) | 0.150070 / 6.500664 (-6.350594) | 0.066898 / 0.075469 (-0.008571) |

### 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) | 1.310527 / 1.841788 (-0.531261) | 13.920492 / 8.074308 (5.846184) | 13.359382 / 10.191392 (3.167990) | 0.154561 / 0.680424 (-0.525863) | 0.016387 / 0.534201 (-0.517814) | 0.379892 / 0.579283 (-0.199391) | 0.376746 / 0.434364 (-0.057618) | 0.462606 / 0.540337 (-0.077732) | 0.550895 / 1.386936 (-0.836041) |

</details>
</details>

![](https://cml.dev/watermark.png#cac733fdaef84cfee92856bd259ce024ec157c91 "CML watermark")


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

PyArrow==6.0.0

<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) | 0.009373 / 0.011353 (-0.001980) | 0.005212 / 0.011008 (-0.005797) | 0.099287 / 0.038508 (0.060779) | 0.035175 / 0.023109 (0.012066) | 0.307012 / 0.275898 (0.031114) | 0.335105 / 0.323480 (0.011625) | 0.008006 / 0.007986 (0.000020) | 0.004017 / 0.004328 (-0.000311) | 0.075519 / 0.004250 (0.071269) | 0.040276 / 0.037052 (0.003223) | 0.302615 / 0.258489 (0.044126) | 0.361742 / 0.293841 (0.067901) | 0.038773 / 0.128546 (-0.089773) | 0.011892 / 0.075646 (-0.063754) | 0.334199 / 0.419271 (-0.085073) | 0.048035 / 0.043533 (0.004503) | 0.301361 / 0.255139 (0.046222) | 0.321996 / 0.283200 (0.038796) | 0.101818 / 0.141683 (-0.039865) | 1.442601 / 1.452155 (-0.009554) | 1.530669 / 1.492716 (0.037953) |

### 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) | 0.201470 / 0.018006 (0.183464) | 0.496305 / 0.000490 (0.495815) | 0.003794 / 0.000200 (0.003594) | 0.000149 / 0.000054 (0.000094) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.028401 / 0.037411 (-0.009010) | 0.107924 / 0.014526 (0.093398) | 0.121716 / 0.176557 (-0.054840) | 0.187407 / 0.737135 (-0.549728) | 0.124755 / 0.296338 (-0.171583) |

### 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) | 0.395667 / 0.215209 (0.180457) | 3.939079 / 2.077655 (1.861424) | 1.776308 / 1.504120 (0.272188) | 1.583487 / 1.541195 (0.042292) | 1.682957 / 1.468490 (0.214467) | 0.677322 / 4.584777 (-3.907455) | 3.796987 / 3.745712 (0.051275) | 3.406199 / 5.269862 (-1.863663) | 1.905467 / 4.565676 (-2.660210) | 0.083189 / 0.424275 (-0.341086) | 0.012156 / 0.007607 (0.004549) | 0.507078 / 0.226044 (0.281033) | 5.031293 / 2.268929 (2.762365) | 2.228403 / 55.444624 (-53.216221) | 1.885760 / 6.876477 (-4.990717) | 1.962340 / 2.142072 (-0.179732) | 0.824979 / 4.805227 (-3.980248) | 0.162107 / 6.500664 (-6.338557) | 0.062324 / 0.075469 (-0.013145) |

### 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) | 1.205104 / 1.841788 (-0.636683) | 15.368896 / 8.074308 (7.294588) | 14.757540 / 10.191392 (4.566148) | 0.177544 / 0.680424 (-0.502880) | 0.029097 / 0.534201 (-0.505104) | 0.445252 / 0.579283 (-0.134031) | 0.456521 / 0.434364 (0.022157) | 0.544166 / 0.540337 (0.003829) | 0.640675 / 1.386936 (-0.746261) |

</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) | 0.007438 / 0.011353 (-0.003914) | 0.005236 / 0.011008 (-0.005772) | 0.075379 / 0.038508 (0.036871) | 0.033274 / 0.023109 (0.010165) | 0.344584 / 0.275898 (0.068686) | 0.372161 / 0.323480 (0.048681) | 0.005914 / 0.007986 (-0.002071) | 0.004176 / 0.004328 (-0.000152) | 0.073311 / 0.004250 (0.069061) | 0.050845 / 0.037052 (0.013793) | 0.338978 / 0.258489 (0.080489) | 0.391563 / 0.293841 (0.097722) | 0.037559 / 0.128546 (-0.090987) | 0.012455 / 0.075646 (-0.063192) | 0.086224 / 0.419271 (-0.333047) | 0.052956 / 0.043533 (0.009423) | 0.338529 / 0.255139 (0.083390) | 0.356752 / 0.283200 (0.073553) | 0.105864 / 0.141683 (-0.035819) | 1.467727 / 1.452155 (0.015572) | 1.588727 / 1.492716 (0.096010) |

### 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) | 0.215959 / 0.018006 (0.197953) | 0.440619 / 0.000490 (0.440129) | 0.000397 / 0.000200 (0.000197) | 0.000058 / 0.000054 (0.000003) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.028855 / 0.037411 (-0.008556) | 0.114239 / 0.014526 (0.099713) | 0.121726 / 0.176557 (-0.054830) | 0.190377 / 0.737135 (-0.546759) | 0.127858 / 0.296338 (-0.168480) |

### 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) | 0.415399 / 0.215209 (0.200190) | 4.159012 / 2.077655 (2.081357) | 1.987593 / 1.504120 (0.483474) | 1.794785 / 1.541195 (0.253591) | 1.924819 / 1.468490 (0.456329) | 0.696082 / 4.584777 (-3.888694) | 3.820461 / 3.745712 (0.074749) | 2.139236 / 5.269862 (-3.130626) | 1.348593 / 4.565676 (-3.217084) | 0.086536 / 0.424275 (-0.337739) | 0.012510 / 0.007607 (0.004902) | 0.518804 / 0.226044 (0.292760) | 5.188659 / 2.268929 (2.919730) | 2.501303 / 55.444624 (-52.943322) | 2.138831 / 6.876477 (-4.737646) | 2.220451 / 2.142072 (0.078378) | 0.836277 / 4.805227 (-3.968950) | 0.170940 / 6.500664 (-6.329724) | 0.067326 / 0.075469 (-0.008143) |

### 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) | 1.307848 / 1.841788 (-0.533940) | 15.995785 / 8.074308 (7.921477) | 13.646285 / 10.191392 (3.454893) | 0.181120 / 0.680424 (-0.499304) | 0.017500 / 0.534201 (-0.516701) | 0.426697 / 0.579283 (-0.152586) | 0.436702 / 0.434364 (0.002338) | 0.518060 / 0.540337 (-0.022278) | 0.632577 / 1.386936 (-0.754359) |

</details>
</details>

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