Sun Java Communications Suite 5 Deployment Planning Guide

Messaging Server Memory Utilization

Make sure you have an adequate amount of physical memory on each machine in your deployment. Additional physical memory improves performance and enables the server to operate at peak volume. Without sufficient memory, Messaging Server cannot operate efficiently without excessive swapping.

At minimum, be sure to have 1 GB of memory per CPU. For most deployments, you will want 2 GB of memory per CPU with UltraSPARC® III systems.