viirya commented on PR #5398: URL: https://github.com/apache/arrow-rs/pull/5398#issuecomment-1944573742
`atoi` encounters more regression as expected, although looks like it is not
as worse as `str.parse`:
```
4096 u64(0) - 128 time: [202.56 µs 203.03 µs 203.43 µs]
change: [+15.998% +16.532% +17.063%] (p = 0.00 <
0.05)
Performance has regressed.
4096 u64(0) - 1024 time: [181.58 µs 181.95 µs 182.37 µs]
change: [+16.615% +17.517% +18.295%] (p = 0.00 <
0.05)
Performance has regressed.
Found 9 outliers among 100 measurements (9.00%)
5 (5.00%) high mild
4 (4.00%) high severe
4096 u64(0) - 4096 time: [197.34 µs 198.98 µs 201.23 µs]
change: [+25.579% +28.243% +31.146%] (p = 0.00 <
0.05)
Performance has regressed.
Found 21 outliers among 100 measurements (21.00%)
4 (4.00%) low severe
2 (2.00%) low mild
3 (3.00%) high mild
12 (12.00%) high severe
4096 i64_small(0) - 128 time: [120.70 µs 121.20 µs 121.76 µs]
change: [+3.6602% +4.1249% +4.5580%] (p = 0.00 <
0.05)
Performance has regressed.
4096 i64_small(0) - 1024
time: [103.90 µs 105.02 µs 106.38 µs]
change: [+9.7972% +12.351% +15.643%] (p = 0.00 <
0.05)
Performance has regressed.
Found 12 outliers among 100 measurements (12.00%)
4 (4.00%) high mild
8 (8.00%) high severe
```
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