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https://issues.apache.org/jira/browse/ARROW-3495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rok Mihevc updated ARROW-3495:
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External issue URL: https://github.com/apache/arrow/issues/19814
> [Java] Optimize bit operations performance
> ------------------------------------------
>
> Key: ARROW-3495
> URL: https://issues.apache.org/jira/browse/ARROW-3495
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Java
> Affects Versions: 0.11.0
> Reporter: Li Jin
> Priority: Major
> Labels: pull-request-available
> Time Spent: 2h
> Remaining Estimate: 0h
>
> From [~atrivedi]'s benchmark finding:
> 2) Materialize values from Validity and Value direct buffers instead of
> calling getInt() function on the IntVector. This is implemented as a new
> Unsafe reader type (
> [https://github.com/animeshtrivedi/benchmarking-arrow/blob/master/src/main/java/com/github/animeshtrivedi/benchmark/ArrowReaderUnsafe.java#L31]
> )
> 3) Optimize bitmap operation to check if a bit is set or not (
> [https://github.com/animeshtrivedi/benchmarking-arrow/blob/master/src/main/java/com/github/animeshtrivedi/benchmark/ArrowReaderUnsafe.java#L23]
> )
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