Re: [PATCH] raise tsc clocksource rating

Glauber de Oliveira Costa
2007-10-30T11:59:06Z

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Zachary Amsden escreveu:
> On Mon, 2007-10-29 at 23:48 +0100, Ingo Molnar wrote:
>> * Zachary Amsden <zach@vmware.com> wrote:
>
>> if it's inaccurate why are you exposing it to the guest then? Native
>> only uses the TSC if it's safe and accurate to do so.
>
> Not every guest support paravirt, but for correctness, all guests
> require TSC, which must be exposed all the way up to userspace, no
> matter what the efficiency or accuracy may be.
>
> Zach
>
However, with such accuracy, it will fail the tsc clocksources tests. If
it passes, it'a good clocksource to use.
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