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I've never ever gotten any good results with a Java profiler. HPROF runs, but its results are garbage. Yourkit and VisualVM are apparently not able to handle the heat of a CPU intensive application and crash or are generally unusable (and this on two different computers with different OSes). If you must know, I was trying to profile a parser.

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I have had good results with Yourkit. And so far in my experience, that is the only profiler that has been able to survive profiling busy services running large heaps. ymmv.

I've have gotten good results with Oracle Flight Recorder. A big downside is that it requires a license from Oracle for production use.

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