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https://issues.apache.org/jira/browse/DISPATCH-511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15494522#comment-15494522
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ASF subversion and git services commented on DISPATCH-511:
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Commit 375aec4a52de846716f202b2a066e76d8d86eb7a in qpid-dispatch's branch
refs/heads/master from [[email protected]]
[ https://git-wip-us.apache.org/repos/asf?p=qpid-dispatch.git;h=375aec4 ]
DISPATCH-511 - Make memory-pool statistics enableable by configuration
(defaults to ON).
> Remove performance problems from locks and memory allocation
> ------------------------------------------------------------
>
> Key: DISPATCH-511
> URL: https://issues.apache.org/jira/browse/DISPATCH-511
> Project: Qpid Dispatch
> Issue Type: Improvement
> Components: Container
> Reporter: Ted Ross
> Assignee: Ted Ross
> Fix For: 0.7.0
>
>
> There are a number of performance issues with locks and memory pooling:
> - Locks are not allocated on cache-line boundaries and suffer from
> false-sharing issues.
> - The extra lock checks (checking the acquired state) cause significant
> overhead. These should be removed.
> - Pooled memory objects are not cache-line aligned and suffer from
> false-sharing
> - Memory pool statistics are useful but costly from a performance
> standpoint. These should be able to be optionally disabled.
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