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https://issues.apache.org/jira/browse/ARROW-1928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16444480#comment-16444480
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ASF GitHub Bot commented on ARROW-1928:
---------------------------------------
pitrou commented on issue #1915: ARROW-1928: [C++] Add
BitmapReader/BitmapWriter benchmarks
URL: https://github.com/apache/arrow/pull/1915#issuecomment-382825882
Benchmark numbers here:
```
BM_NaiveBitmapReader/97.6562k/min_time:1.000 1391 us 1390 us
1016 137.181MB/s
BM_BitmapReader/97.6562k/min_time:1.000 1162 us 1162 us
1139 164.143MB/s
BM_NaiveBitmapWriter/97.6562k/min_time:1.000 1299 us 1299 us
1077 146.872MB/s
BM_BitmapWriter/97.6562k/min_time:1.000 1032 us 1032 us
1358 184.88MB/s
```
The original BitmapWriter implementation achieved 155MB/s.
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> [C++] Add benchmarks comparing performance of internal::BitmapReader/Writer
> with naive approaches
> -------------------------------------------------------------------------------------------------
>
> Key: ARROW-1928
> URL: https://issues.apache.org/jira/browse/ARROW-1928
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Wes McKinney
> Assignee: Antoine Pitrou
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.10.0
>
>
> The performance may also vary across platforms/compilers. This would be
> helpful to know how much they help
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