YourKit Jave

The Industry Leader Among Profiling Tools:
CPU and memory profiling has never been easier, and smarter at the same time. YourKit has developed a revolutionary approach to profiling applications at both development and production stages, bringing unparalleled benefits to professional Java developers on all platforms, including Windows, Linux, Solaris SPARC/Intel, and Mac OS X.
FM server with YourKit commend:
cp /opt/FlexMaster/3rdparty/tomcat/apache-tomcat-6.0.18/bin/startup_with_yjp.sh /opt/
mv startup.sh startup.sh.bak
mv startup_with_yjp.sh startup.sh
computer client:
install YourKit