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SubjectRe: top displaying 50% si time and 50% idle on idle machine
On Mon, Sep 11, 2006 at 01:49:57PM +0200, Metathronius Galabant wrote:
> >>>>>Cpu(s): 0.0% us, 0.0% sy, 0.0% ni, 50.0% id, 0.0%
> >>>>>wa, 0.0% hi, 50.0%si
> >
> >>> BTW what means si? (interrupt service time? google
> >>> didn't find anything)
> >
> >> 'soft interrupt' probably. try disconnecting network.
> >
> >The cause has been found. The timer of that machine is seriously
> >broken, 1 second is approximately 500ms long.
> >It is a HP DL360 G4 and I configured the kernel without ACPI or
> >similar. Maybe there are some strange BIOS power management schemes
> >active. I will look deeper into the problem and report back.
> >A broken timer is _very_ strange to me (I didn't encounter that in the
> >last 12 years w/ custom kernels).

Try 2.6.18-rc6, there is a fix included (see Changelog:
"[PATCH] x86: increase MAX_MP_BUSSES on default arch")

Cheers,
Vita
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