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https://issues.apache.org/jira/browse/LOG4J2-324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13722131#comment-13722131
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Ralph Goers commented on LOG4J2-324:
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What was observed was that the number of minor GCs increased a lot during the
test. My guess is that because FlumePersistentManager is logging debug events
that lots of these are being created and then released as they expire. However,
I am still looking into this and the GC increase might be due to something else.
> Potential performance improvement for StatusLogger
> --------------------------------------------------
>
> Key: LOG4J2-324
> URL: https://issues.apache.org/jira/browse/LOG4J2-324
> Project: Log4j 2
> Issue Type: Improvement
> Components: API
> Affects Versions: 2.0-beta8
> Reporter: Remko Popma
>
> From discussion on the mailing list - please feel free to edit this
> description.
> From: Ralph Goers
> To: Log4J Developers List <[email protected]>
> Sent: Wednesday, July 24, 2013 7:57 AM
> Subject: Re: Config additions, WAS: Confused: want low latency: do I need
> BOTH async logger AND async appender??
> I think I just came up with another attribute for the JMX element. I'll have
> to look at the status logger but I believe it is always creating a StatusData
> object and putting it in a ring buffer so they can be printed later. This
> will actually create a lot of objects and will impact performance. So we will
> want to add a statusLevel attribute to the JMX element to specify what the
> level is on the events that should be added to the buffer.
> It was actually kind of cool though as the person doing the performance test
> looked at the JMX stats and even though the status was set to error in the
> configuration they had lots of debug messages in JMX that were quite helpful
> to verify a misconfiguration.
> Ralph
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