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:
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.
For Solaris SPARC systems with CMT processor with CoolThreads technology, in the /etc/opt/SUNWam/config/AMConfig.properties file, it is recommended that you add the following properties at the end of the file:
where value depends on the number of cores in a Sun Fire T1000 or T2000 server. For example, for 8 cores, set value to 8, or for 6 cores, set value to 6.