> So let's say my CPUs are 1200MHz, does it make each increment > 1/1,200,000 second?
1 MHz is 1,000,000 Hz. So if your CPU is 1200 MHz, that's 1,200,000,000 Hz. With this in mind, the increment would actually be 1/1,200,000,000 of a second. > And if I have 600,000 interrupt 6 increments in one second, does it > mean the CPU took half a seconds taking care of the interrupt As far as I can tell, this is just the amount of time the CPU spent servicing interrupts at a particular level. I don't think this keeps track of the actual number of interrupts recieved, just the time spent dealing with them. I could be wrong about that, though. To answer the second half of your question: 600,000/1,200,000,000 = .0005 seconds, or 500 microseconds. -j _______________________________________________ perf-discuss mailing list perf-discuss@opensolaris.org