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Posted to dev@qpid.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2019/06/03 21:59:00 UTC
[jira] [Commented] (DISPATCH-1354) Interrouter annotation
processing uses slow methods
[ https://issues.apache.org/jira/browse/DISPATCH-1354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16855101#comment-16855101 ]
ASF GitHub Bot commented on DISPATCH-1354:
------------------------------------------
ChugR commented on pull request #518: DISPATCH-1354: Annotation processing performance improvements
URL: https://github.com/apache/qpid-dispatch/pull/518
Message annotation processing on received messages stages key names
byte by byte into a flat buffer and then uses strcmp to check them.
Easy improvements are:
* Use name in raw buffer if it does not cross a buffer boundary
* If name crosses a boundary then use memmoves to get the name in chunks
* Check the name prefix only once and then check variable parts of name strings
* Don't create unnecessary qd_iterators and qd_parsed_fields
* Don't check names whose lengths differ from the given keys
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> Interrouter annotation processing uses slow methods
> ---------------------------------------------------
>
> Key: DISPATCH-1354
> URL: https://issues.apache.org/jira/browse/DISPATCH-1354
> Project: Qpid Dispatch
> Issue Type: Improvement
> Components: Router Node
> Affects Versions: 1.7.0
> Reporter: Chuck Rolke
> Assignee: Chuck Rolke
> Priority: Major
>
> Message annotation processing on received messages stages key names byte by byte into a flat buffer and then uses strcmp to check them.
> Easy improvements are:
> * Use name in raw buffer if it does not cross a buffer boundary
> * If name crosses a boundary then use memmoves to get the name in chunks
> * Check the name prefix only once and then check variable parts of name strings
> * Don't create unnecessary qd_iterators and qd_parsed_fields
> * Don't check names whose lengths differ from the given keys
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