Messages in this thread | | | Date | Thu, 21 Mar 2019 08:58:07 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH] PM / arch: x86: Rework the MSR_IA32_ENERGY_PERF_BIAS handling |
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On Thu, Mar 21, 2019 at 01:00:52AM +0100, Rafael J. Wysocki wrote: > + * The Performance and Energy Bias Hint (EPB) allows software to specify its > + * preference with respect to the power-performance tradeoffs present in the > + * processor. Generally, the EPB is expected to be set by user space through > + * the generic MSR interface (with the help of the x86_energy_perf_policy tool), > + * but there are two reasons for the kernel to touch it.
So I hate /dev/msr with a passion. It is absolute atrocious crap.
Please, just make a real interface for this if it is important.
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