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SubjectRe: [PATCH] x86 uv: lower UV rtc clocksource rating
* Dimitri Sivanich <sivanich@sgi.com> wrote:

> On Fri, Feb 17, 2012 at 01:02:42PM +0100, Ingo Molnar wrote:
> >
> > * Dimitri Sivanich <sivanich@sgi.com> wrote:
> >
> > > Lower the rating of the UV rtc clocksource to just below that of the tsc.
> >
> > This changelog is deficient for obvious reasons, mind updating
> > it?
> >
> OK. Is this sufficient?
>
>
> Lower the rating of the UV rtc clocksource to just below that of the tsc.
>
> Reading the tsc clocksource has lower latency than reading the rtc, so favor
> it in situations where it is synchronized and stable. When the tsc is
> unsynchronized, the rtc needs to be the chosen clocksource.

Yeah, perfect, thanks.

Ingo


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