[wellylug] ubuntu load average

[Daniel Pittman]

Pete Black <pete at marchingcubes.com> writes:

> I've personally seen rtc interrupt wierdness causing idle load
> problems on one of my AMD machines, though that machine has a
> completely screwy APIC/ACPI implementation too.

OK, good.  How did it cause that?

> If its not the issue, its not the issue, but its something to check
> into. if /proc/interrupts shows thousands or millions of rtc
> interrupts, while all the other interrupt counts are low, you don't
> think that might be an indication of a problem in this area?

Um, no.  At 1000, or even 250, interrupts a second you can have
significantly more RTC interrupts shown than any other source, given
they typically average somewhere between 0 and 100 a second.

I mean, sure, check into it, but it seems highly improbably that it is
related, and so far no one — not even you — has actually pointed to a
connection between RTC interrupt problems and high idle load.

*shrug*

Regards,
        Daniel