Re: [PATCH RFC] KVM: busy-spin detector

Balbir Singh
2010-06-11T19:18:16Z

* Marcelo Tosatti <mtosatti@redhat.com> [2010-06-11 14:46:27]:

> > Interesting approach, is there a reason to tie it in with pause loop
> > exits?
>
> Hum, i don't see any. PLE exits provide the same detection, but more
> accurately.
>
> > Can't we do something more generic or even para-virtish.
>
> This is pretty generic already? Or what do you mean?
>
> The advantage is it does not require paravirt modifications in the
> guest (at the expense of guessing what the guest is doing).
>

Agreed, but one needs to depend on newer hardware to get this feature
to work.

--
Three Cheers,
Balbir