Re: [PATCH] [15/58] i386: Rewrite sched_clock

From: Andi Kleen
Date: Thu Jul 19 2007 - 14:00:39 EST


On Thursday 19 July 2007 19:43:49 Daniel Walker wrote:
> On Thu, 2007-07-19 at 19:38 +0200, Andi Kleen wrote:
> > On Thursday 19 July 2007 19:31:56 Daniel Walker wrote:
> >
> > > >From my perspective a downside to sched_clock is that the math is
> > > duplicated per architecture .. I think it would be a win to use the
> > > generic functions if it's possible..
> >
> > They can't be used because they're not cpu local. The whole basic
> > concept behind the new sched_clock is to be cpu local.
>
> Your not following me ..

Because you don't make much sense. You're really asking me to factor
an single multiplication and a shift (two CPU instructions!) out to share?

-Andi
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