Re: [patch 4/9] Remove the TSC synchronization on SMP machines

From: Arjan van de Ven
Date: Tue Feb 13 2007 - 01:40:48 EST


On Mon, 2007-02-12 at 16:34 -0800, Christoph Lameter wrote:
> On Fri, 2 Feb 2007, Andi Kleen wrote:
>
> > I've threatened to just disable RDTSC for ring 3 before, but it'll likely
> > never happen because too many programs use it.
>
> Those programs are aware that they are fiddling around with low level
> material but with this patchset we are going to have a non
> monotonic time subsystem?

no quite the opposite. gettimeofday() currently is NOT monotonic
unfortunately. With this patchseries it actually has a better chance of
becoming that...

--
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