Hi, I was curious to know how readprofile profiles the kernel (2.6.x). How is it different from Oprofile? I know Oprofile uses hardware counters to do the profiling, does readprofile do the same? I also do not know the meaning of passing of parameter "profile=1/2..." while booting the kernel. Somewhere I read the number passed as an option determines the coarseness of the profiled output. I would be glad if someone could throw some light on it or point to relevant documents. Thanking in anticipation. Shourya -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/