[jboss-user] [Performance Tuning] - Re: Identifying the thread that is eating up my CPU

[PeterJ]

Are you, by any chance, running with the kernel option that shows each thread as its own process? I can't recall the option name off hand, but if you do a "ps -ef | grep java", how many entries do you get?

Based on the jps output, I suspect that 21997 is the process (and the master thread for the process) while 21998 is just a thread.

The best way to find out what is taking up all the processor is to run jstack several time, each time a few seconds apart, and look at the threads that are still in the same code. You can ignore the http threads waiting on objects - instead look for threads running your code.

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