zhuqi-lucas commented on PR #7962:
URL: https://github.com/apache/arrow-rs/pull/7962#issuecomment-3109036597
> ```
> sort i32 to indices 2^10 1.13
12.9±0.02µs ? ?/sec 1.00 11.4±0.03µs ? ?/sec
> sort i32 to indices 2^12 1.15
63.1±0.25µs ? ?/sec 1.00 54.9±0.13µs ? ?/sec
> s
> ```
>
> Weird -- we get the same results. Maybe there is more code or something
now so cache effects come into play on the test machine 🤔 I am inclined to go
with this PR to get the improvements in general
Thank you @alamb , i changed to use a linux now to reproduce also, but it
can't reproduce also both mac and linux:
```rust
sort i32 to indices 2^10
time: [12.857 µs 12.871 µs 12.886 µs]
change: [−0.8566% −0.6047% −0.3347%] (p = 0.00 <
0.05)
Change within noise threshold.
Found 5 outliers among 100 measurements (5.00%)
3 (3.00%) high mild
2 (2.00%) high severe
sort i32 to indices 2^12
time: [57.662 µs 57.817 µs 58.056 µs]
change: [−3.9800% −3.5589% −3.1125%] (p = 0.00 <
0.05)
Performance has improved.
Found 5 outliers among 100 measurements (5.00%)
1 (1.00%) high mild
4 (4.00%) high severe
```
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