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From "Remko Popma (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LOG4J2-324) Potential performance improvement for StatusLogger
Date Mon, 29 Jul 2013 02:11:48 GMT
Remko Popma created LOG4J2-324:
----------------------------------

             Summary: 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 <log4j-dev@logging.apache.org>
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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