JVM Options

notes on options for the various JVM and memory, performance options

oracles list of tuning options

http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html#PerformanceTuning

some options to deal with PermGen errors

-XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled -XX:MaxPermSize=128M -XX:HeapDumpPath=c:\jakarta-tomcat\webapps