Microsecond accurate (or better) process timing in Linux

Question

I need a very accurate way to time parts of my program. I could use the regular high-resolution clock for this, but that will return wallclock time, which is not what I need

Answer 1

I think I found the kernel patch I was looking for. Posting it here so I don't forget the link:

http://user.it.uu.se/~mikpe/linux/perfctr/ http://sourceforge.net/projects/perfctr/

Edit: It works for my purposes, though not very user-friendly.