Messages in this thread | ![/](/images/icornerl.gif) | | Date | Tue, 11 Nov 2003 10:00:42 +1100 | From | Anton Blanchard <> | Subject | Re: hot cache line due to note_interrupt() |
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Hi,
> I also verified on a system simulator that the counter in > note_interrupt() is the only line that is bounced between cpus at a HZ > rate on an idle system. > > The IPI & reschedule interrupts have a similar problem but at a lower > rate.
We havent seen this on ppc64 because our timer interrupt doesnt go via the standard interrupt path (its a separate exception). IPIs do however so Id expect these to be a problem for us.
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