jorgecarleitao opened a new pull request #8116:
URL: https://github.com/apache/arrow/pull/8116
This PR improves speed of all math operations by 15% (on default batch
size), and changes the scaling (to faster) of how these operations scale with
batch size.
See main issue here: ARROW-9918
This has a big contribution from @yordan-pavlov, that initially reported the
issue on ARROW-8908 for literal arrays.
Benchmarks (on my computer, before and after the second commit):
```
sqrt_20_12 time: [34.422 ms 34.503 ms 34.584 ms]
change: [-16.333% -16.055% -15.806%] (p = 0.00 <
0.05)
Performance has improved.
sqrt_22_12 time: [150.13 ms 150.79 ms 151.42 ms]
change: [-16.281% -15.488% -14.779%] (p = 0.00 <
0.05)
Performance has improved.
sqrt_22_14 time: [151.45 ms 151.68 ms 151.90 ms]
change: [-18.233% -16.919% -15.888%] (p = 0.00 <
0.05)
Performance has improved.
```
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