[jboss-user] [Performance Tuning] - Re: High System CPU Time

[PeterJ]

Getting a few thread dump might help pinpoint where in the application the problem is. I recall helping one customer whose system was showing 80% CPU usage when no sessions were active. Turns out that the application code had an infinite loop, and three of the requests were in that loop. Doing several dumps in a row an noticing that those three threads were still in the same code after a couple of minutes helped to pinpoint the problem.

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