Sun Java Communications Suite 5 Release Notes

Tuning Garbage Collection for Instant Messaging

(Issue Number: 6279277) Due to differences in the way the 1.4.2 and 1.5 versions of the JRE handle garbage collection, you may experience less than optimal performance using the default garbage collector with version 1.4.2 on the server's host. To fix this, you can either upgrade to version 1.5 of the JRE, or include the following command line option when you invoke the server:


-XX:+UseParallelGC

For more information about JRE garbage collection, see the following: