IDEA generates those neat flame graphs when using "Run with Java Flight Recorder".
While I know of external tools capable of this, is it possible to generate those flame graphs from existing jfr dumps with IDEA?
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Sure, you can open any exisiting jfr report (Main menu/Run/Open Profiler Snapshot), and if it contains sampling, flame graph will also be available.
Egor
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Doesn't work for me, I can see JNI Global references only, while jmc shows flame graph. – Vipin Aug 03 '21 at 05:36
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Please file a bug https://youtrack.jetbrains.com/newIssue – Egor Aug 16 '21 at 14:13
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I will leave that to jetbrains, for now I am good with async-profiler provided converter.jar – Vipin Aug 17 '21 at 11:43