On Mon, Oct 16, 2006 at 10:53:36AM +0800, Adrian Chadd wrote: > Hiya, > > Whats the "right" way to grab kernel profiling data these days? > > I've tried using the kernel profiling w/ kgmon and gprof but the top CPU > wasters are the profiling functions themselves, quickly followed by > write_eflags(). I'm not sure this is valid at all. > > I'm running 6-stable on an Athlon 1800XP, so its uniprocessor and > (relatively) slow. I'm hitting the server rather hard with a few thousand > TCP connections a second; I'm trying to figure out where my ~60% of kernel > time and ~35% of interrupt time is going.
pmc can be extremely useful although it doesn't do call graphs. Kris
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