Sun Java System Web Server 7.0 Update 3 Performance Tuning, Sizing, and Scaling Guide

64-Bit Server

The 64–bit server, available on Solaris SPARC and AMD64 platforms only, is more scalable than the 32–bit version. You can use the 64–bit server if your system has more than 4 GB of RAM. Some of the advantages which the 64–bit server has over the 32–bit server are: