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Date: Wed, 11 Jul 2007 09:31:17 +1000
From: Paul Mackerras <paulus@samba.org>
To: Segher Boessenkool <segher@kernel.crashing.org>
Subject: Re: [PATCH 2.6.21-rt2] PowerPC: decrementer clockevent driver
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Cc: linuxppc-dev@ozlabs.org, Thomas Gleixner <tglx@linutronix.de>,
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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.