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Posted to dev@qpid.apache.org by "Ken Giusti (Jira)" <ji...@apache.org> on 2021/08/04 15:51:00 UTC
[jira] [Resolved] (DISPATCH-2222) Avoid cpu-intensive message
string-ify of every received AMQP message
[ https://issues.apache.org/jira/browse/DISPATCH-2222?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ken Giusti resolved DISPATCH-2222.
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Fix Version/s: 1.18.0
Resolution: Fixed
> Avoid cpu-intensive message string-ify of every received AMQP message
> ---------------------------------------------------------------------
>
> Key: DISPATCH-2222
> URL: https://issues.apache.org/jira/browse/DISPATCH-2222
> Project: Qpid Dispatch
> Issue Type: Bug
> Components: Router Node
> Affects Versions: 1.17.0
> Reporter: Ken Giusti
> Assignee: Ken Giusti
> Priority: Major
> Fix For: 1.18.0
>
>
> A call to log_link_message() is made for every received AMQP message. This function logs a string-ified version of the message at level QD_LOG_TRACE.
>
> log_link_message() parses out each message and summarizes it into a string buffer before logging. This stringify operation is cpu-intensive. According to flamegraphs it occupies 5% of the compute budget.
>
> The string-ify operation should be avoided if the message log level doe not have TRACE enabled.
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