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https://issues.apache.org/jira/browse/CXF-3324?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Beryozkin resolved CXF-3324.
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Resolution: Fixed
Assignee: Sergey Beryozkin
http://svn.apache.org/viewvc?rev=1069500&view=rev
thanks
> JAXRSUtils: Avoid calling Message unless it'll be logged
> --------------------------------------------------------
>
> Key: CXF-3324
> URL: https://issues.apache.org/jira/browse/CXF-3324
> Project: CXF
> Issue Type: Improvement
> Components: JAX-RS
> Affects Versions: 2.3.2
> Environment: JDK 1.6
> Reporter: Ka-Lok Fung
> Assignee: Sergey Beryozkin
> Priority: Minor
> Labels: JAXRSUtils, log, performance
> Fix For: 2.3.3
>
> Attachments: CXF.Message.Hotspot.png
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> Our performance and reliability testing has shown that Message.toString() is
> called many times in JAXRSUtils.selectResourceClass and
> JAXRSUtils.findTargetMethod. It takes up 2.5% of our CPU when these messages
> aren't even being logged. An image from the profiler showing this hotspot is
> attached.
> According to our tests, if you pre-check if the message is loggable (e.g., if
> (LOG.isLoggable(Level.FINE))) and logging is set to the default level, the
> throughput is increased by 2% and the CPU time is reduced by an equal amount.
> The lines where this change would have the most impact are indicated in the
> image.
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