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Performance Troubleshooting

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Symptom Workaround

-XX:+ProfileLiveObjects is required for jmap -histo

In order for jmap -histo to work on a ZVM, the ZVM command line has to have -XX:+ProfileLiveObjects specified at startup.

Using Java Flight Recorder (JFR) can cause long (dozens of milliseconds) application pauses.

Do not use JFR in environments where long pauses are unacceptable.