Messages in this thread | | | Date | Fri, 4 Dec 2015 09:51:02 -0800 | From | Jacob Pan <> | Subject | Re: [PATCH] x86/rapl: Do not load in a guest |
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On Fri, 4 Dec 2015 09:22:56 +0100 Peter Zijlstra <peterz@infradead.org> wrote:
> Also, yuck @ powercap/intel_rapl.c for doing rdmsr_on_cpu() + > wrmsr_on_cpu() all over the place. Can you please be more specific? is the concern related to the overhead of IPI? I am doing these calls based on MSR CPU scope and consider the fact that access is less frequent.
Thanks,
Jacob
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