#48129 Investigate jemalloc and memory fragmentation
Closed: wontfix None Opened 9 years ago by mreynolds.

Investigate using "jemalloc" to see if it helps with memory fragmentation(and potentially performance).

jemalloc is supposed to work well with application that use thread pools(as opposed to constantly creating/destroying threads), and it supposed to reduce memory fragmentation. Seems like a good candidate for 389.


Testing is complete, and results can be seen at:

http://www.port389.org/docs/389ds/FAQ/jemalloc-testing.html

Conclusion:

No regressions observed

Overall memory footprint was significantly smaller compared to the default system malloc. The larger the entry cache was - the larger the magnitude of separation of memory size (especially in the long duration add/delete tests)

Search tests ran faster with jemalloc (~10% improvement). "modify" tests ran for the same amount of time, or just slightly faster.

Metadata Update from @mreynolds:
- Issue assigned to mreynolds
- Issue set to the milestone: 1.3.4 backlog

7 years ago

389-ds-base is moving from Pagure to Github. This means that new issues and pull requests
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This issue has been cloned to Github and is available here:
- https://github.com/389ds/389-ds-base/issues/1460

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Metadata Update from @spichugi:
- Issue close_status updated to: wontfix (was: Fixed)

3 years ago

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