[jboss-jira] [JBoss JIRA] (WFLY-3889) JMX monitoring is extremely memory inefficient

[Koen Janssens (JIRA)]

Koen Janssens created WFLY-3889:
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             Summary: JMX monitoring is extremely memory inefficient
                 Key: WFLY-3889
                 URL: https://issues.jboss.org/browse/WFLY-3889
             Project: WildFly
          Issue Type: Bug
          Components: JMX
    Affects Versions: 9.0.0.Alpha1, JBoss AS7 7.1.1.Final
            Reporter: Koen Janssens
            Assignee: Kabir Khan


When reading any JMX attribute(s), I have noticed a noticeable impact on the performance of our system. After attaching a profiler, I see that getting a single attribute of a JMX bean (either using remoting or using jconsole) is generating thousands of objects, that have to cleaned up by the GC. For instance, 6000 instances of the ModelNode class are created.

A clone is made of the complete management model before executing any JMX operation. This happens in the OperationContextImpl.readResourceFromRoot class.

More background on associated forum thread



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