Re: [patch] i386, numaq: enable TSCs again

From: William Lee Irwin III
Date: Fri May 25 2007 - 04:37:30 EST


* William Lee Irwin III <wli@xxxxxxxxxxxxxx> wrote:
>> I remember. It was far beyond "slightly async;" they would drift
>> minutes apart during reasonable amounts of uptime, though it would
>> take at least several days to drift so far (I don't recall how long it
>> took).

On Fri, May 25, 2007 at 10:31:53AM +0200, Ingo Molnar wrote:
> yes, that's what i meant under 'slightly async'. Some AMD CPUs are like
> that too and sched_clock() now handles that fine. So we should try my
> patch.

Sorry, then. I took slight to mean something else. In any event I was
only quantifying things. I've no opinion whatsoever on the impact of
the code on NUMA-Q, only some recall of its operating characteristics.


-- wli
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