JVM optimization

1. have followed the guidelines in the "Guidelines to setup the JVM in Apps 11i " Doc ID: Note:362851.1 So from:
# orig wrapper.bin.parameters=-verbose:gc -hotspot -Xmx512M -Xms128M -XX:MaxPermSize=128M -XX:NewRatio=2 -XX:+PrintGCTimeStamps -XX:+UseTLAB
to:
wrapper.bin.parameters=-verbose:gc -hotspot -Xmx640M -Xms256M -XX:MaxPermSize=128M -XX:NewRatio=2
-XX:+PrintGCTimeStamps -XX:+UseTLAB -XX:+UseParallelGC -XX:ParallelGCThreads=2

but there has to be more HP-UX specific parameters.....