tustvold commented on PR #4151:
URL:
https://github.com/apache/arrow-datafusion/pull/4151#issuecomment-1309748049
Benchmarks are a bit of a mixed bag, it improves some but others are worse
```
merge i64 time: [11.315 ms 11.323 ms 11.332 ms]
change: [-4.5706% -4.4894% -4.4047%] (p = 0.00 <
0.05)
Performance has improved.
Found 2 outliers among 100 measurements (2.00%)
2 (2.00%) high mild
merge f64 time: [11.588 ms 11.593 ms 11.598 ms]
change: [-4.0767% -4.0063% -3.9446%] (p = 0.00 <
0.05)
Performance has improved.
merge utf8 low cardinality
time: [10.602 ms 10.610 ms 10.619 ms]
change: [+4.1663% +4.2692% +4.3838%] (p = 0.00 <
0.05)
Performance has regressed.
Found 3 outliers among 100 measurements (3.00%)
1 (1.00%) high mild
2 (2.00%) high severe
merge utf8 high cardinality
time: [12.186 ms 12.194 ms 12.203 ms]
change: [-4.0200% -3.8918% -3.7694%] (p = 0.00 <
0.05)
Performance has improved.
Found 5 outliers among 100 measurements (5.00%)
5 (5.00%) high mild
merge utf8 tuple time: [17.000 ms 17.033 ms 17.067 ms]
change: [-9.8709% -9.6664% -9.4597%] (p = 0.00 <
0.05)
Performance has improved.
Found 8 outliers among 100 measurements (8.00%)
7 (7.00%) high mild
1 (1.00%) high severe
merge utf8 dictionary time: [10.103 ms 10.111 ms 10.121 ms]
change: [+1.9130% +2.0123% +2.1263%] (p = 0.00 <
0.05)
Performance has regressed.
Found 9 outliers among 100 measurements (9.00%)
6 (6.00%) high mild
3 (3.00%) high severe
merge utf8 dictionary tuple
time: [12.729 ms 12.734 ms 12.740 ms]
change: [+2.8633% +2.9415% +3.0230%] (p = 0.00 <
0.05)
Performance has regressed.
Found 1 outliers among 100 measurements (1.00%)
1 (1.00%) high mild
merge mixed utf8 dictionary tuple
time: [16.426 ms 16.436 ms 16.446 ms]
change: [-5.5555% -5.4858% -5.4102%] (p = 0.00 <
0.05)
Performance has improved.
Found 4 outliers among 100 measurements (4.00%)
3 (3.00%) high mild
1 (1.00%) high severe
merge mixed tuple time: [16.150 ms 16.197 ms 16.252 ms]
change: [-13.534% -13.263% -12.960%] (p = 0.00 <
0.05)
Performance has improved.
Found 11 outliers among 100 measurements (11.00%)
4 (4.00%) high mild
7 (7.00%) high severe
[raphael@raphael-dev core]$ RUSTFLAGS="-C target-cpu=native" cargo bench
--bench merge -- --baseline master
Finished bench [optimized] target(s) in 0.16s
Running benches/merge.rs
(/data/raphael/arrow-datafusion/target/release/deps/merge-401bf7cbb5a80837)
merge i64 time: [11.586 ms 11.594 ms 11.602 ms]
change: [-2.2860% -2.2037% -2.1148%] (p = 0.00 <
0.05)
Performance has improved.
merge f64 time: [11.797 ms 11.806 ms 11.816 ms]
change: [-2.3456% -2.2435% -2.1450%] (p = 0.00 <
0.05)
Performance has improved.
Found 6 outliers among 100 measurements (6.00%)
4 (4.00%) high mild
2 (2.00%) high severe
merge utf8 low cardinality
time: [10.596 ms 10.602 ms 10.609 ms]
change: [+4.1059% +4.1981% +4.2906%] (p = 0.00 <
0.05)
Performance has regressed.
Found 1 outliers among 100 measurements (1.00%)
1 (1.00%) high mild
merge utf8 high cardinality
time: [11.924 ms 11.933 ms 11.942 ms]
change: [-6.0753% -5.9473% -5.8217%] (p = 0.00 <
0.05)
Performance has improved.
merge utf8 tuple time: [17.015 ms 17.055 ms 17.107 ms]
change: [-9.7828% -9.5451% -9.2870%] (p = 0.00 <
0.05)
Performance has improved.
Found 3 outliers among 100 measurements (3.00%)
1 (1.00%) high mild
2 (2.00%) high severe
merge utf8 dictionary time: [10.443 ms 10.596 ms 10.749 ms]
change: [+5.4018% +6.8962% +8.3995%] (p = 0.00 <
0.05)
Performance has regressed.
merge utf8 dictionary tuple
time: [12.656 ms 12.665 ms 12.674 ms]
change: [+2.2842% +2.3785% +2.4717%] (p = 0.00 <
0.05)
Performance has regressed.
Found 3 outliers among 100 measurements (3.00%)
3 (3.00%) high mild
merge mixed utf8 dictionary tuple
time: [16.569 ms 16.666 ms 16.771 ms]
change: [-4.7103% -4.1593% -3.5856%] (p = 0.00 <
0.05)
Performance has improved.
Found 21 outliers among 100 measurements (21.00%)
21 (21.00%) high severe
merge mixed tuple time: [16.165 ms 16.181 ms 16.198 ms]
change: [-13.460% -13.347% -13.228%] (p = 0.00 <
0.05)
Performance has improved.
Found 6 outliers among 100 measurements (6.00%)
4 (4.00%) high mild
2 (2.00%) high severe
```
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