[jboss-jira] [JBoss JIRA] (LOGMGR-263) Static Logger Lookup is much slower as with JDK 8

[Andreas Liebscher (Jira)]

     [ https://issues.jboss.org/browse/LOGMGR-263?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andreas Liebscher updated LOGMGR-263:
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    Attachment: grafik1570016303722.png


> Static Logger Lookup is much slower as with JDK 8
> -------------------------------------------------
>
>                 Key: LOGMGR-263
>                 URL: https://issues.jboss.org/browse/LOGMGR-263
>             Project: JBoss Log Manager
>          Issue Type: Bug
>         Environment: WildFly 17, OpenJDK 11
>            Reporter: Andreas Liebscher
>            Priority: Major
>         Attachments: grafik1570016303722 (1).png, grafik1570016303722.png
>
>
> During upgrading a Java EE application from WildFly 13 with JDK 8 to WildFly 17 with JDK 11 we had a serious performance issue. We identified the usage of the logging framework SLF4J with the pattern `static Logger log = LoggerFactory.getLogger(StatusChangeValidatorFactory.class)` was the reason when a lot of calls to `getLogger` occur in parallel. As workaround we removed `static` from some code hotspots to get back the performance we were used to. Also WildFly 13 with JDK 8 got a performance improvement with the removed `static` keyword.
> Please check the VisualVM output as prove of JDKSpecific got slower:



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