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https://issues.apache.org/jira/browse/PROTON-1910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16572116#comment-16572116
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Alan Conway edited comment on PROTON-1910 at 8/7/18 6:30 PM:
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Bah - good point. Clearly we need to fix this issue in the implementation, and
make the API efficient under normal use.
was (Author: aconway):
Bah - good point. Clearly we need to fix this issue in the implementation, to
the API to make it efficient under normal use.
> Profiling indicates that cgo becomes a bottleneck during scale testing of
> electron
> ----------------------------------------------------------------------------------
>
> Key: PROTON-1910
> URL: https://issues.apache.org/jira/browse/PROTON-1910
> Project: Qpid Proton
> Issue Type: Bug
> Components: go-binding
> Affects Versions: proton-c-0.24.0
> Reporter: Aaron Smith
> Assignee: Alan Conway
> Priority: Major
>
> While performing scale testing, detailed profiling of Go test clients showed
> that >95% of the execution time can be devoted to the cgo call. The issues
> seems to be related on sends to the NewMessage() call. For receives, the
> bottleneck is both NewMessage() and the call to actually receive the message.
>
>
> This behavior is not unexpected as CGO is a well-known bottleneck. Would it
> be possible to have a NewMessage() call that return multiple messages and a
> recv call that took an "At most" argument. i.e. recv(10) would receive 10 or
> fewer messages that might be waiting in the queue. Also, it would be nice to
> be able to trade latency for throughput in that the callback wasn't triggered
> until N messages were recieved (with timeout)....
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