alamb commented on PR #9120:
URL: https://github.com/apache/arrow-rs/pull/9120#issuecomment-3738322021
Same measurements on Q21/Q14:
Merge base
```
arrow_reader_clickbench/sync/Q14
time: [23.212 ms 23.847 ms 24.528 ms]
Found 16 outliers among 100 measurements (16.00%)
16 (16.00%) high severe
arrow_reader_clickbench/async/Q14
time: [14.286 ms 14.316 ms 14.349 ms]
Found 12 outliers among 100 measurements (12.00%)
7 (7.00%) high mild
5 (5.00%) high severe
```
this branch
```
arrow_reader_clickbench/sync/Q14
time: [23.287 ms 23.937 ms 24.636 ms]
change: [−3.5557% +0.3793% +4.4540%] (p = 0.85 >
0.05)
No change in performance detected.
Found 21 outliers among 100 measurements (21.00%)
2 (2.00%) high mild
19 (19.00%) high severe
arrow_reader_clickbench/async/Q14
time: [14.420 ms 14.464 ms 14.515 ms]
change: [+0.6410% +1.0344% +1.4332%] (p = 0.00 <
0.05)
Change within noise threshold.
Found 13 outliers among 100 measurements (13.00%)
5 (5.00%) high mild
8 (8.00%) high severe
```
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