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https://issues.apache.org/jira/browse/ARROW-8843?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Francois Saint-Jacques resolved ARROW-8843.
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Fix Version/s: 1.0.0
Resolution: Fixed
Issue resolved by pull request 7285
[https://github.com/apache/arrow/pull/7285]
> [C++] Optimize BitmapEquals unaligned case
> ------------------------------------------
>
> Key: ARROW-8843
> URL: https://issues.apache.org/jira/browse/ARROW-8843
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Yibo Cai
> Assignee: Yibo Cai
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.0.0
>
> Time Spent: 1h 50m
> Remaining Estimate: 0h
>
> BitmapEquals unaligned case compares two bitmap bit-by-bit[1]. Similar tricks
> in this PR[2] may also be helpful here to improve performance by processing
> in words.
> [1]
> https://github.com/apache/arrow/blob/e5a33f1220705aec6a224b55d2a6f47fbd957603/cpp/src/arrow/util/bit_util.cc#L248-L254
> [2] https://github.com/apache/arrow/pull/7135
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