Because you are running Solaris, it might have a way to limit the amount of processor utilized by a particular process. I know that Windows has no such capability and I don't think that Linux does either. There is no way to limit this in the JVM itself. Yes, you could decrease the available HTTP threads (and increase the HTTP queue size) and that might reduce the CPU utilization. But even a few threads can use large amounts of the CPU if a request is very processor intensive and takes a long time to run. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4222816#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...