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Posted to issues@arrow.apache.org by "Antoine Pitrou (Jira)" <ji...@apache.org> on 2020/04/22 12:06:00 UTC
[jira] [Resolved] (ARROW-8537) [C++] Performance regression from
ARROW-8523
[ https://issues.apache.org/jira/browse/ARROW-8537?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Antoine Pitrou resolved ARROW-8537.
-----------------------------------
Fix Version/s: 1.0.0
Resolution: Fixed
Issue resolved by pull request 7007
[https://github.com/apache/arrow/pull/7007]
> [C++] Performance regression from ARROW-8523
> --------------------------------------------
>
> Key: ARROW-8537
> URL: https://issues.apache.org/jira/browse/ARROW-8537
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Yibo Cai
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.0.0
>
>
> I optimized BitmapReader in [this PR|https://github.com/apache/arrow/pull/6986] and see performance uplift of BitmapReader test case. I didn't check other test cases as this change looks trivial.
> I reviewed all test cases just now and see big performance drop of 4 cases, details at [PR link|https://github.com/apache/arrow/pull/6986#issuecomment-616915079].
> I also compared performance of code using BitmapReader, no obvious changes found. Looks we should revert that PR.
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