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https://issues.apache.org/jira/browse/PROTON-1408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15947551#comment-15947551
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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/99
  
    Closing this in favor of doing a new one, with latest improvement.  New PR 
will have just one checkin.
    



> 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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