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SubjectRe: [Dumb question] 100k RTC interrupts/sec on SMP system: why?
On Thu, 9 Nov 2006 13:09:53 +0300
Paul P Komkoff Jr <i@stingr.net> wrote:

> Hi.
>
> I have a couple of old SMP systems (Dual P3 on Intel STL2 boards), on
> which I experience the following:
> procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
> 0 0 0 800752 45376 143064 0 0 0 8 96607 65 0 0 100 0 0
> 0 0 0 800752 45376 143064 0 0 0 0 96439 57 0 0 100 0 0
>
> It's a completely idle system. Interrupts are coming from rtc.
> This is a stock fedora SMP kernel.
>
> IIRC, some time ago (years) I've read that rtc can be used somehow in
> SMP but I don't remember the specifics. So, maybe you are familiar
> with this and can give out a quick answer - what this 100K
> interrupts/sec are about, and how to get rid of them (if possible).
>

I guess we could start with the full dmesg output and the kernel version?
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