How to locate Performance Bottlenecks at High CPU Utilization in middleware or Application Server?

Bottlenecks at High CPU Utilization:-
If your site CPU utilization is close to 100%, you can use a tool like OptimizeIt or KL Group's JProbe Profiler to help determine slow points of your code. See Using OptimizeIt .

In some instances, OptimizeIt cannot handle large sites running under load. If so, another way to identify deadlocks and bottlenecks is to get your JVM to dump out stack traces while your system is under load.