amd-pstate and pstate-frequency

pstate-frequency recently released version 3.14.0 which brought support for the new amd-pstate CPU driver, but only in "passive" mode. amd-pstate also supports and "active EPP" mode, which a new testing release for what will become pstate-frequency 3.15.0 supports as of today!

Changes were made to support the new active driver, and brought out support for the new --epp option which lets you change the Energy Performance Preference independent of CPU driver as long as the option is exposed by sysfs.

While the official release of 3.15.0 will not be for a while, if you have a recent (Zen 2 or Intel 11 Gen+) CPU that has support for EPP via ACPI CPPC (most modern processors do), then the latest git development version of amd-pstate will support your CPU with better, more specific options! Support is also added for EPP controls into the power-profiles for pstate-frequency, and it should gracefully fallback if you have an old CPU without any exposed EPP support.

Test today by pulling the latest script off of the Github or by using the -git AUR package. I'll update again when I have a release date in mind, but please be aware that it will not be for a little bit.

Stay tuned!

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