On Tue, Jul 22, 2008 at 2:58 PM, Elad Lahav <elahav@xxxxxxxxxxxx> wrote: > Are you running a tick-less kernel? That may explain the variations. > > Elad > I'm not (kernel 2.6.18, before all that tick update, even). Those variations happen on other systems as well, like FreeBSD. So I think they probably have a reasonable explation, I just can't figure it out what happens. >From what I'm reading here on the code the only place where the account_* functions are called is in: account_process_tick (kernel/timer.c:953). So, what I'd expect to happen is that after each tick the kernel would look what's going on and it would increment the cpustat->whatever by one jiffy (which seems to be the smallest unit it can account for). So I'd expect that tick to happen a fixed number of times each second. I can't figure out why that's not so. -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
