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https://issues.apache.org/jira/browse/FLINK-12349?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ji Liu closed FLINK-12349.
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Resolution: Invalid
> [Java] Improve performance of BaseValueVector#getValidityBufferSizeFromCount
> ----------------------------------------------------------------------------
>
> Key: FLINK-12349
> URL: https://issues.apache.org/jira/browse/FLINK-12349
> Project: Flink
> Issue Type: Improvement
> Reporter: Ji Liu
> Assignee: Ji Liu
> Priority: Trivial
>
> Now in _BaseValueVector#getValidityBufferSizeFromCount_ andÂ
> _BitVectorHelper#getValidityBufferSize_, it uses _Math.ceil_ to calculate
> size which is not efficient (lots of unnecessary logic in
> _StrictMath#floorOrCeil_) since the value count is always not less than 0, we
> could simply replace Math.ceil with the following code:
> _return valueCount % 8 > 0 ? valueCount / 8 + 1 : valueCount / 8;_
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