JBoss and usage of multiple processors

[wjlinde]

My company is using JBoss 3.2.1 in a production environment with
Tomcat 4.1.24. We are starting to see performance issues on the server.
The production server has 4GB of memory, 4 processors, and is running in a Windows Server 2003 operating system.

The issue we are having is that JBoss is using one of the processors at about 75%-90% while the other three processors are sharing the other 10%-25% of the processing load. How can we get JBoss to use all 4 processors efficiently and share the load equally? Help please! Our performance is being hit hard.

Thanks,
Jeff Lindesmith

[frankgrimes]

If load isn't being balanced correctly across your processors, here are two likely culprits:

a) Operating System
b) Java Virtual Machine implementation for said O/S

I seriously doubt there is any Jboss code that could impact processing load distribution....

[anil.saldhana]

JBoss relies on the JVM completely. It has no fancy code to do parallel processing with the processors on the system.

If it is a feature of the JVM(I mean parallel processing), then JBoss indirectly makes use of it.