Michael Ho created IMPALA-6784:
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Summary: 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
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.
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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
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