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https://issues.apache.org/jira/browse/IMPALA-6784?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joe McDonnell reassigned IMPALA-6784:
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Assignee: Joe McDonnell (was: Bikramjeet Vig)
> Upgrade gperftools to 2.6.90 or beyond
> --------------------------------------
>
> Key: IMPALA-6784
> URL: https://issues.apache.org/jira/browse/IMPALA-6784
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Affects Versions: Impala 2.13.0
> Reporter: Michael Ho
> Assignee: Joe McDonnell
> Priority: Major
>
> There are some pretty good improvements to TCMalloc in 2.6.90. Previous
> attempt to upgrade to 2.6.3 was reverted due to IMPALA-6414 which has been
> fixed since then.
> {noformat}
> gperftools 2.7rc is out!
> Changes:
> Most notable change in this release is that very large allocations (>1MiB)
> are now handled be O(log n) implementation. This is contributed by Todd
> Lipcon based on earlier work by Aliaksei Kandratsenka and James Golick.
> Special thanks to Alexey Serbin for contributing OSX fix for that commit.
> detection of sized deallocation support is improved. Which should fix another
> set of issues building on OSX. Much thanks to Alexey Serbin for reporting the
> issue, suggesting a fix and verifying it.
> Todd Lipcon made a change to extend page heaps freelists to 1 MiB (up from
> 1MiB - 8KiB). This may help a little for some workloads.
> Ishan Arora contributed typo fix to docs
> {noformat}
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