Using JRockIt Runtime Analyzer

1) Get the development license
http://commerce.bea.com/downloadproduct.jsp?family=JRMC&major=3.0&minor=0&delivery=1&os=All&intent=purchase

2) Place the license in $JROCKIT_HOME/jre/license.bea

3) Start JRA recording from command
cd $JROCKIT_HOME/bin
./jrcmd $PID startjrarecording recordingtime=600 filename=$NAME.`date +%Y%m%d%H%M`.xml

Note: Help can be found by running
./jrcmd $PID help

4) Analyze the result using JRA Analyzer
export DISPLAY=$IP:0
cd $JROCKIT_HOME/bin
./jrmc &


Reference:
http://dev2dev.bea.com/pub/a/2007/12/jrockit-tuning.html?page=3