Re: [PATCH 2.6.21-rt2] PowerPC: decrementer clockevent driver

From: Paul Mackerras
Date: Tue Jul 10 2007 - 19:55:10 EST


Segher Boessenkool writes:

> > This scales with the number of processors since there is one
> > decrementer per core (is it per thread on SMT chips?
> > I don't know).
>
> One per core.

No, each thread has its own decrementer, but the timebase is shared.

Paul.
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