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https://issues.apache.org/jira/browse/ARROW-1928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16444108#comment-16444108
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ASF GitHub Bot commented on ARROW-1928:
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pitrou opened a new pull request #1915: ARROW-1928: [C++] Add
BitmapReader/BitmapWriter benchmarks
URL: https://github.com/apache/arrow/pull/1915
Also improve the BitmapWriter implementation (around 18% faster here - on
Ubuntu 16.04 with gcc 4.9).
I experimented with a different implementation for BitmapReader (storing the
bit mask instead of the bit offset), but it came out surprisingly slower.
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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
> 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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