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https://issues.apache.org/jira/browse/ARROW-3055?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wes McKinney closed ARROW-3055.
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Resolution: Won't Fix
I did some benchmarking of various schemes and did not find any benefit to
byte-wise checking (it's possible that word-wise checking could be beneficial,
but let's wait until it's deemed to be a problem)
> [C++] Use byte pop counts to bypass bit checking in some cases in
> BitmapReader classes
> --------------------------------------------------------------------------------------
>
> Key: ARROW-3055
> URL: https://issues.apache.org/jira/browse/ARROW-3055
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Wes McKinney
> Priority: Major
>
> When performing a scan of a bitmap, skipping bit checking math could improve
> performance, but we would need to investigate
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