Re: Too many rescheduling interrupts (still!)

[Peter Zijlstra]

On Wed, Feb 12, 2014 at 06:46:39PM +0100, Frederic Weisbecker wrote:
> Ok but if the target is idle, dynticks and not polling, we don't have the choice
> but to send an IPI, right? I'm talking about this kind of case.

Yes; but Andy doesn't seem concerned with such hardware (!x86).

Anything x86 (except ancient stuff) is effectively polling and wakes up
from the TIF_NEED_RESCHED write.

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