Re: Severe IRQ problems on Foster (P4 Xeon) system

From: Martin J. Bligh (Martin.Bligh@us.ibm.com)
Date: Thu Mar 14 2002 - 09:34:55 EST


>> let me know whether this fixes your problem,
>
> The patch distributes the IRQs nicely between CPUs, but unfortunately does
> not fix our timer IRQ problem.
>
> Btw is it correct that one could also use the APIC Task Priority Registers
> to implement "fair" IRQ routing? (If linux adjusted them, which it
> currently doesn't).

Yes, and Dave Olien has already done this. It's a good idea for P3,
and seems to me to be essential for P4.

Dave, can you republish your patch?

M.

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