Re: spinaphore conceptual draft

From: Andi Kleen
Date: Mon May 30 2005 - 11:41:52 EST


On Mon, May 30, 2005 at 08:52:13AM -0600, Chris Friesen wrote:
> Andi Kleen wrote:
>
> >On many architectures (including popular ones like AMD x86-64)
> >there is no reliable fast monotonic (1) count unfortunately
>
> What about rdtsc?

It fails the reliable and monotonic test on AMD; on Intel EM64T machines
it fails the fast test (although the alternatives are even slower) and
also the first ones one a few bigger ones.

-Andi
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