Re: 50 Watt idle power regression bisected to Linux-3.10

From: Ingo Molnar
Date: Wed Dec 11 2013 - 09:57:05 EST



* Borislav Petkov <bp@xxxxxxxxx> wrote:

> On Wed, Dec 11, 2013 at 01:43:52PM +0100, Peter Zijlstra wrote:
> > Something like the below.. someone needs to double check and possibly
> > add SNB/IVB EX parts if they're already available.
>
> Right, our friends at Intel would need to tell us which families/models
> does AAI65 span... if, this is actually the case.

I think CLFLUSH should be pretty universally available, IIRC graphics
drivers were using it rather heavily in combination with
write-combining MTRRs, both on Linux and on Windows.

Thanks,

Ingo
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