Messages in this thread | | | Date | Sat, 13 Mar 1999 18:08:15 +0100 (CET) | From | Ingo Molnar <> | Subject | Re: [patch] kstat change to see how much Linux SMP really scale well |
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On Sat, 13 Mar 1999, Andi Kleen wrote:
> > But I see a clever and more fun way to avoid losing ticks in both the irq > > handler and in the smp timer interrupt, and it's to always calc the delta > > between rdtsc inside the smp timer irq. I can go into that. > > Exactly what I had in mind. Actually I'm surprised that Linux doesn't do > that already @)
this is a non-issue, really. It simply does not happen. I've profiled a slow and old dual-P100 for hours under heavy load and i never got a lost SMP timer interrupt.
-- mingo
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