You don't pollute the caches with 1 billion eth IRQ callbacks, because you don't care. You don't pollute the cache with disk IRQs, bnecouse you don't care. In general on a 3GHz x86 you are served IRQs so seldom that they don't much affect the cache coherancy of your program. I don't know what cachegrind does though. As soon as I get X11 running again I'll check if they have any whitepapers on their site.
/ Peter Bortas
Previous text:
2004-01-17 14:10: Subject: file limits
What do you mean 'get rid of'? If no interrupts reach the program, it can't function properly (it will eventually get around to waiting for some hardware event), and so the measurement becomes useless.
/ Marcus Comstedt (ACROSS) (Hail Ilpalazzo!)