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https://issues.apache.org/jira/browse/ARROW-6549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated ARROW-6549:
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Labels: pull-request-available (was: )
> [C++] Switch back to latest jemalloc 5.x
> ----------------------------------------
>
> Key: ARROW-6549
> URL: https://issues.apache.org/jira/browse/ARROW-6549
> Project: Apache Arrow
> Issue Type: Wish
> Components: C++
> Reporter: Antoine Pitrou
> Priority: Major
> Labels: pull-request-available
>
> In ARROW-6478, we switched back to jemallox 4.x to fix a large performance
> regression in micro-benchmarks which appeared when bumping the vendored
> jemalloc version to 5.2.0.
> Since then, the issue was
> [discussed|https://github.com/jemalloc/jemalloc/issues/1621] with the
> jemalloc maintainers and we found out that customizing some options allowed
> regaining all (or most) of the performance on micro-benchmarks with 5.2.x.
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