In the first quick browse, I noticed that parallel GC does not make much sense with just 2 processors. It may even slow down things a bit. Use it if you have 4 procs or more.
But this is not the cause of your problem. In addition, the per thread stack size (-Xss:1024k) seems quite big. How many JVM threads are running? Did you watch the memory usage of the JVM (VMSIZE, RSS) if it gets slow? Do you see increased paging activity? The -Xmx size should be small enough to fit in memory all the time. If the heap has to be swapped out, things get much slower. What are your users doing? In summary, the information you provided is not enough to do any useful analysis. Basically, its not a specifc JBoss problem, but a general JVM tuning one. Unless you found a memory leak; in this case you should first upgrade to a recent JBoss 3.2.x version. Cheers, JÃrg View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3867793#3867793 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3867793 ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_ide95&alloc_id396&op=click _______________________________________________ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
