Re: Implement userspace RAPL bits in cpupower

[Daniel Lezcano <daniel.lezcano@linaro.org>]

On 06/05/2015 04:39 PM, Thomas Renninger wrote:
> Hi,
>
> I'd like to ask whether there already exist userspace bits
> for the powercap/rapl drivers?
>
> Afaik there is some "read-only"/monitor code in turbostat,
> but it is not intended to add any modifying code in there?
>
> I would like to avoid yet another (Intel) CPU specific
> userspace tool, like:
> tools/power/x86/x86_energy_perf_policy
> tools/power/x86/turbostat
>
> and it would be great if userspace bits could be added to
> cpupower utility
> tools/power/cpupower
>
> I searched for rapl and powercap in the MAINTAINERS list,
> but there wasn't any match. Is there a candidate (Jacob?) who
> might be the right one or who volunteers for this?
>
> Thanks for any hints and any discussion input,

I began to write a small test suite using the RAPL register to measure 
the energy consumed by each test. If someone is interested by that I can 
put it somewhere in a git tree, so you can access the RAPL code.

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