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https://issues.apache.org/jira/browse/QPID-2466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12855319#action_12855319
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Andrew Kennedy commented on QPID-2466:
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Based on test reults with the SoftReferenceMessageHandles it was determined
that the LRU setting at the default value provides adequate performance, and
that changing this for all installations is inadvisable. Tuning of this option
should be carried out on a per-JVM version basis, and would usually only
correspond to the a particulat workload being handled by the broker.
> Replace WeakReference use with SoftReference for enhanced message caching
> -------------------------------------------------------------------------
>
> Key: QPID-2466
> URL: https://issues.apache.org/jira/browse/QPID-2466
> Project: Qpid
> Issue Type: Improvement
> Components: Java Broker
> Affects Versions: 0.6
> Environment: JVM 1.6.0_18
> Reporter: Andrew Kennedy
> Assignee: Robbie Gemmell
> Fix For: 0.7
>
> Attachments:
> 0001-QPID-2466-Replace-WeakReference-use-with-SoftRefere.patch,
> 0001-QPID-2466-trunk.patch
>
>
> Replace use of WeakReference with SoftReference in the message handles in the
> broker to improve message cache performance when using a persistent store.
> Also tuning the eviction policy for soft references and evaluation of other
> GC settings.
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