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https://issues.apache.org/jira/browse/QPID-6803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15533266#comment-15533266
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ASF subversion and git services commented on QPID-6803:
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Commit 1762812 from oru...@apache.org in branch 'java/trunk'
[ https://svn.apache.org/r1762812 ]
QPID-6803: Avoid chains of DirectByteBuffers
> ByteBuffer slices/duplicates contribute significantly to garbage overhead in
> busy Brokers
> -----------------------------------------------------------------------------------------
>
> Key: QPID-6803
> URL: https://issues.apache.org/jira/browse/QPID-6803
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Reporter: Keith Wall
> Assignee: Keith Wall
> Fix For: qpid-java-6.1
>
>
> Profile whilst running auto-ack/transacted test at higher messages rates
> shows that the garbage collection is dominated being dominated by
> DIrectByteBuffers resulting from slicing/duplicating.
> We could refactor QpidByteBuffer (maintaining our own
> remaining/capacity/limit and keeping a reference to the original buffer)
> ourselves to avoid this overhead.
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