DTrace

http://en.wikipedia.org/wiki/DTrace

http://video.google.com/videoplay?docid=-8002801113289007228

http://blogs.sun.com/bmc/entry/dtrace_on_linux

http://x86vmm.blogspot.com/2005/10/systemtap-dtrace-for-linux.html

http://software.intel.com/en-us/blogs/2007/05/15/why-linux-people-lust-after-dtrace/

http://blogs.sun.com/ahl/resource/dtrace_course.2005.8.18.pdf

http://sourceware.org/systemtap//SystemTap_Beginners_Guide.pdf