Java Settings for Netbeans 6.8 on OSX 10.5.8 to optimize cpu usage

Question

Sorry I have several question relative to the same problem.

I am using Netbeans 6.8 on OSX 10.5.8 with java 1.6.0_17 and after about 5 minutes of work, the cpu usage

Answer 1

Thank you for the advices which lead me to play around with netbeans.conf.

here are my options that significantly improve the performances:

 -J-server
 -J-Xverify:none
 -J-d64
 -J-Xss2m
 -J-Xms256m
 -J-Xmx512m
 -J-XX:PermSize=32m
 -J-XX:MaxPermSize=512m
 -J-Dsun.java2d.noddraw=true
 -J-Dsun.java2d.opengl=true
 -J-Dsun.java2d.d3d=false
 -J-Dawt.nativeDoubleBuffering=true
 -J-XX:+UseAdaptiveSizePolicy
 -J-Djava.net.preferIPv4Stack=true
 -J-XX:+AggressiveOpts
 -J-XX:+AggressiveHeap

its seems that important ones are:
 -J-XX:+AggressiveOpts
 -J-XX:+AggressiveHeap
 -J-d64

Here are some useful links which inspired me:

• http://java.sun.com/performance/reference/whitepapers/tuning.html#section4.2.5
• http://performance.netbeans.org/howto/jvmswitches/index.html

I don't try 6.7 because it is now satisfying. Hope it helps!