cyb70289 commented on pull request #10283:
URL: https://github.com/apache/arrow/pull/10283#issuecomment-836076518
Tested on Xeon Gold 5218.
Before: **5.4s** total run time
```
$ time release/arrow-compute-aggregate-benchmark
--benchmark_filter="ModeKernelNarrow<BooleanType>/1048576/10000"
------------------------------------------------------------------------------------------------------
Benchmark Time CPU
Iterations UserCounters...
------------------------------------------------------------------------------------------------------
ModeKernelNarrow<BooleanType>/1048576/10000 550 us 550 us
1279 bytes_per_second=1.7744G/s null_percent=0.01 size=1048.58k
real 0m5.445s
user 0m5.417s
sys 0m0.008s
```
After: **1.2s** total run time
```
$ time release/arrow-compute-aggregate-benchmark
--benchmark_filter="ModeKernelNarrow<BooleanType>/1048576/10000"
------------------------------------------------------------------------------------------------------
Benchmark Time CPU
Iterations UserCounters...
------------------------------------------------------------------------------------------------------
ModeKernelNarrow<BooleanType>/1048576/10000 551 us 551 us
1267 bytes_per_second=1.7723G/s null_percent=0.01 size=1048.58k
real 0m1.197s
user 0m1.180s
sys 0m0.000s
```
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