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Posted to notifications@logging.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2019/02/04 00:44:00 UTC

[jira] [Commented] (LOG4J2-2391) Investigate ThrowableProxy performance

    [ https://issues.apache.org/jira/browse/LOG4J2-2391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16759580#comment-16759580 ] 

ASF subversion and git services commented on LOG4J2-2391:
---------------------------------------------------------

Commit 96e8e1ec7be4d13ca7a8aaa61a7485ae0abe1798 in logging-log4j2's branch refs/heads/master from Carter Kozak
[ https://gitbox.apache.org/repos/asf?p=logging-log4j2.git;h=96e8e1e ]

LOG4J2-2391 release note grammar s/more faster/faster


> Investigate ThrowableProxy performance
> --------------------------------------
>
>                 Key: LOG4J2-2391
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-2391
>             Project: Log4j 2
>          Issue Type: Task
>    Affects Versions: 2.11.1
>            Reporter: Carter Kozak
>            Assignee: Carter Kozak
>            Priority: Major
>
> I've noticed when applications get into a state where they log more exceptions than usual (e.g. network connectivity issues) thread dumps contain many threads working inside of ThrowableProxy, loading classes.
> A simple jmh benchmark of a pattern layout writing to disk with a message and throwable appears to write about 160,000 events/second using a throwable, and 2,000 events/second using ThrowableProxy.
> I will investigate to understand where the substantial difference is coming from, and clean up the benchmarks to add to the log4j2 benchmarking module.



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