Messages in this thread | | | Date | Sat, 30 Nov 2013 00:25:10 +0100 | Subject | Re: [PATCH v7 3/4] perf,x86: add Intel RAPL PMU support | From | Stephane Eranian <> |
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Vince,
Ok, I have added PP1 now and it works fine on my HSW desktop. What I want to know now is what is this map to on servers? And on clients, it is always mapped to the GFX. If so, then we can use a more specific name: power/energy-gfx/
I will send a patch soon.
Thanks.
On Fri, Nov 29, 2013 at 9:31 PM, Borislav Petkov <bp@alien8.de> wrote: > On Fri, Nov 29, 2013 at 09:09:46PM +0100, Stephane Eranian wrote: >> > So in theory it would be harmless to export the values even if not >> > supported. What is the worst failure mode? That somehow a recent CPU >> > doesn't support the MSR and we get a GPF when trying to access it? >> > >> Yes. I think that's what you get with DRAM on client for instance. > > We have rdmsr_safe for non-existent MSRs, in case touching such is the > issue. > > -- > Regards/Gruss, > Boris. > > Sent from a fat crate under my desk. Formatting is fine. > --
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