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https://issues.apache.org/jira/browse/LOG4J2-2792?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17046732#comment-17046732
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Ralph Goers commented on LOG4J2-2792:
-------------------------------------
There isn't enough detail here for us to determine what the problem is. Can
you provide a sample application that demonstrates the difference between the
versions? Can you run a profiler against the application and identify where the
problem is?
> Performance issue in log4j 2.12.1 and log4j 2.13.0
> --------------------------------------------------
>
> Key: LOG4J2-2792
> URL: https://issues.apache.org/jira/browse/LOG4J2-2792
> Project: Log4j 2
> Issue Type: Bug
> Components: API, Core
> Affects Versions: 2.12.1, 2.13.0
> Environment: System configuration: Redhat Linux 7,12-core,16Gb RAM
> Application server: Apache tomcat 9.0.16
> Reporter: Riya Reji
> Priority: Blocker
> Attachments: log4j_2_13_CPU_SPIKE.PNG
>
>
> Hi,
> When log4j2 was upgraded from 2.11.0 to 2.12.1 or 2.13.0,the cpu utilization
> was spiking to 100 %. When 2.11.0 version was used the CPU utilization was
> below 40%.
>
> PFA image of CPU utilization when 2.13.0 was used
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