Whether you are working with ColdFusion MX applications, JRun or any other Java-Based applications there is great benefit to knowing when and how to implement efficient Java Performance Tuning. I am working with one of our JRun clients and in the course of looking for good current reference points for them, I located this web site which has links to all kinds of good looking information relating to Java-JVM-JRE performance tuning.

One other important resource is the SeeJava utility we recently released; details on that can be found here.