[jboss-user] [Performance Tuning] - Re: Memory Management in Jboss

[PeterJ]

What JDK are you using? And what OS are you running? JDK 6 comes with VisualVM which lets you see what is going on in a running JVM. It can take and analyze heap dumps. VisualVM can connect to JDK 5 JVMs also, but the heap dump functionality is not available on Windows.

Also, make use of the GC data options (-verbose:gc, -XX:PrintHeapAtGC, etc.) to see what the garbage collector is doing. For an introduction, see my presentation at:
http://www.cecmg.de/doc/tagung_2007/agenda07/24-mai/2b3-peter-johnson/index.html

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