On Mon, Aug 31, 2015 at 10:38:21AM +0200, Peter Zijlstra wrote:
> Looking at the BKDG Fam 15h 60h-6Fh these MSRs are per compute unit.
> This means you can do much finer grained measurements than system wide
Well, we can do finer-grained if needed. I'm all for everything which
has a good use case. The use case we had in mind here was the physical
processor power consumption for a time period.
> -- which is all hwmon seems capable of.
I guess we can do both - perf and hwmon. I don't see why not.
> Not to mention the proposed code is horrible, who in their right mind
> does two rdmsrl_safe_on_cpu() back to back.
That's a good point - I missed that during previous review. Rui, please
put the rdmsrl_safe_on_cpu() accesses in a separate function which you
run on a particular CPU, for your next version.
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
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