Re: [PATCH] adjust x86-64 watchdog tick calculation

From: Andi Kleen
Date: Thu May 12 2005 - 07:57:49 EST


On Thu, May 12, 2005 at 02:52:05PM +0200, Jan Beulich wrote:
> >> Get the x86-64 watchdog tick calculation into a state where it can also
> >> be used with nmi_hz other than 1Hz. Also do not turn on the watchdog by
> >> default (as is already done on i386).
> >
> >I already fixed this some time ago by using the same code as i386.
> >
> >That is what is in the current tree:
> > wrmsr(MSR_K7_PERFCTR0, -(cpu_khz/nmi_hz*1000), -1);
> >
> >But I guess your version will work with a higher frequency, right?
>
> For this part of the patch, yes, this will help with frequencies beyond 4GHz. The other change is which deals with nmi_hz being other than 1Hz.

I will queue it for after 2.6.12.
-Andi
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