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Posted to dev@qpid.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2019/03/06 19:11:00 UTC
[jira] [Commented] (DISPATCH-1281) Performance - Batch the freeing
of messages from the core thread
[ https://issues.apache.org/jira/browse/DISPATCH-1281?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16786036#comment-16786036 ]
ASF GitHub Bot commented on DISPATCH-1281:
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ted-ross commented on pull request #457: DISPATCH-1281 - Batch the cleanup of freed messages so they share a s…
URL: https://github.com/apache/qpid-dispatch/pull/457
…ingle unit of general-work per core-thread action sweep.
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> Performance - Batch the freeing of messages from the core thread
> ----------------------------------------------------------------
>
> Key: DISPATCH-1281
> URL: https://issues.apache.org/jira/browse/DISPATCH-1281
> Project: Qpid Dispatch
> Issue Type: Improvement
> Components: Router Node
> Reporter: Ted Ross
> Assignee: Ted Ross
> Priority: Major
> Fix For: 1.6.0
>
>
> Profiling has identified a disproportionate amount of core-thread time being spent in qdr_delete_delivery_internal_CT. This is due to the fact that every in-core delivery-free results in the posting of one unit of general work (work to be performed by an I/O thread without any association with a particular connection).
> This improvement batches the freed messages to be handled at one time, with one unit of general work, at the end of the processing of each set of core-thread actions.
> The result is a greater degree of batching of message-cleanups when the core thread is busier. This will free up core-thread CPU capacity for when the router is the busiest.
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