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.
