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https://issues.apache.org/jira/browse/PROTON-1408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15950687#comment-15950687
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ASF GitHub Bot commented on PROTON-1408:
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Github user mgoulish commented on the issue:
https://github.com/apache/qpid-proton/pull/100
Final (hopefully) code with make_hash fn has passed full test (64-bit)
starting at ID 0, now at 5e9 with no ill effects. I am looking into Travis
build failure.
> long-lived connections suffer large performance hit after many messages
> -----------------------------------------------------------------------
>
> Key: PROTON-1408
> URL: https://issues.apache.org/jira/browse/PROTON-1408
> Project: Qpid Proton
> Issue Type: Bug
> Components: proton-c
> Reporter: michael goulish
> Assignee: michael goulish
> Attachments: jira_proton_1408_reproducer.tar.gz
>
>
> In long-running soak tests, in which connections are never taken down, I am
> seeing a sudden & severe performance degradation when the number of messages
> over the connection reaches about 6.4 billion.
> This is happening in tests with two senders, two receivers & one router
> intermediating.
> I have tried C libUV clients as well as CPP clients. Behavior is not
> identical, but I see sudden performance drop, ie. 8x throughput decrease or
> worse, in both cases.
> Alan / Ted / Ken see an issue in use of improper comparison logic in
> pn_do_disposition(), in transport.c . I am trying to prove this now.
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