Aaron Smith created PROTON-1910:
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Summary: 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
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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