Ken Giusti created DISPATCH-2250:
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Summary: Add extra poll of pending output work on I/O thread
Key: DISPATCH-2250
URL: https://issues.apache.org/jira/browse/DISPATCH-2250
Project: Qpid Dispatch
Issue Type: Improvement
Components: Router Node
Affects Versions: 1.17.0
Reporter: Ken Giusti
Assignee: Ken Giusti
See
[https://github.com/kgiusti/dispatch/commit/c546f31af8a9638b6fba4ccca68edfa1adaf0498]
Performance tests have shown a increase in throughput with this patch. The
core thread will forward messages faster than the output thread can write them
to proton. Testing has showed that when under load additional output work
items are added to the output connection during the time it spends draining
proactor events. This extra output poll will service those work items before
returning control to proton to perform the I/O.
There probably is a cleaner way to implement this - including a way to make
checking for the presence of output work cheaper....
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