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https://issues.apache.org/jira/browse/ARROW-8553?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Francois Saint-Jacques updated ARROW-8553:
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Summary: [C++] Optimize unaligned bitmap operations (was: [C++]
Reimplement BitmapAnd using Bitmap::VisitWords)
> [C++] Optimize unaligned bitmap operations
> ------------------------------------------
>
> Key: ARROW-8553
> URL: https://issues.apache.org/jira/browse/ARROW-8553
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Affects Versions: 0.17.0
> Reporter: Antoine Pitrou
> Assignee: Yibo Cai
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.0.0
>
> Time Spent: 4h 40m
> Remaining Estimate: 0h
>
> Currently, {{BitmapAnd}} uses a bit-by-bit loop for unaligned inputs. Using
> {{Bitmap::VisitWords}} instead would probably yield a manyfold performance
> increase.
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