Sun Fire T1000 and T2000 Servers

If Access Manager is installed on a Sun Fire T1000 or T2000 server, the tuning scripts for Web Server 7.0 and Application Server 8.2 set the JVM GC ParallelGCThreads parameter to 8:

-XX:ParallelGCThreads=8

This parameter reduces the number of garbage collection threads, which could be unnecessarily high on a 32-thread capable system. However, you can increase the value to 16 or even 20 for a 32 virtual CPU machine such as a Sun Fire T1000 server, if it minimizes full garbage collection activities.