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https://issues.apache.org/jira/browse/QPIDJMS-404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16548062#comment-16548062
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ASF subversion and git services commented on QPIDJMS-404:
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Commit 264a9a9b6c5d8d8c11a995b7b02289b2938d77ba in qpid-jms's branch
refs/heads/master from [~tabish121]
[ https://git-wip-us.apache.org/repos/asf?p=qpid-jms.git;h=264a9a9 ]
QPIDJMS-404 Add variants of ProviderFuture for perf tuning
Adds three variations on ProviderFuture that allow for tuning on
platforms that don't benefit from the spin / wait pattern used in
the current implementation and default to using a variant that does
not park on windows to avoid unpredictably long parks that result
in performance decreases due to missing the event completion.
> Performance regressions on some platforms using new ProviderFuture
> implementation
> ---------------------------------------------------------------------------------
>
> Key: QPIDJMS-404
> URL: https://issues.apache.org/jira/browse/QPIDJMS-404
> Project: Qpid JMS
> Issue Type: Bug
> Components: qpid-jms-client
> Affects Versions: 0.34.0
> Reporter: Timothy Bish
> Assignee: Timothy Bish
> Priority: Major
> Fix For: 0.35.0
>
>
> The new ProviderFuture implementation introduced in 0.34.0 relies on a
> stepped spin / wait algorithm that backs off the spin using yeilds and short
> parks which will eventually end in a wait / notify pattern if the event
> hasn't completed. On some platforms the length of a park can be
> substantially longer than requested which leads to missing the event
> completion for long periods of time reducing performance.
> Introduce a set of ProviderFuture implementations that can be used on
> platforms where the stepped spin / wait variant causes regressions in
> performance.
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