I've the same problem.
Try to increase the number of processor in tomcat or MaxThreads and MinThreads in Jetty app descriptor
Anyone has an answer to this ? I'm trying to find a configurable "thread count" or execute queues for thread execution. I know this is a very important performance tunable in WebSphere and WebLogic. Is there such a thing in JBoss ?
Another question is ... is there a JBoss performance tuning guide for the server ? I'm not looking for a best-practices EJB/CMP app development guide for performance... I'm looking more for server performance tuning like thread count, pooling, caching, transactions, memory management, app server I/O and other server tunables.
For Jetty, look in
Look at the section that resembles: