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Posted to dev@qpid.apache.org by "Keith Wall (JIRA)" <ji...@apache.org> on 2015/10/21 15:03:27 UTC

[jira] [Created] (QPID-6803) ByteBuffer slices/duplicates contribute significantly to garbage overhead in busy Brokers

Keith Wall created QPID-6803:
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             Summary: 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


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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