Sun Java System Access Manager 7.1 Performance Tuning and Troubleshooting Guide

Throughput performance of AM is significantly slower when it is deployed on WebLogic or WebSphere Application Server.

Solution:First tune the JVM heap and GC (garbage collection) options for WebSphere Application Server. See Third-Party Web Containers for more information. Since JVM 1.4.2 or earlier is much slower than JVM 1.5.0 or later in throughput performance, make sure the JVM version used in the container is 1.4.2 or later when you use the CMS and NewParallelGC options. WebLogic 9.0 or later and WebSphere 6.0 or later use JDK 1.5.0 or later.