What parameters in the internal architecture of JBoss can I tune? For example, a big part of tuning WebLogic is defining the size of its thread pool (execute queues) and the percentage of threads that are dedicated to socket listeners.

There are standard tuning parameters external to JBoss's architecture: heap size, JDBC connection pools, bean caches and pools, JMS message and byte thresholds (tunable in JBoss?), etc, but what can I do inside JBoss?

btw, I have purchased the documentation (6 month subscription) and I haven't seen anything in there to help..

Thanks!