> > 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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/