AMD P-State v4 Linux Testing On A Ryzen 5 5500U
With AMD having published a new revision to their AMD P-State Linux CPU frequency scaling driver that they are working towards mainlining with a goal of better power efficiency on Linux, here are some initial benchmarks of that new patch series when using a Ryzen 5 5500U notebook.
The amd-pstate driver was updated a fourth time this past week since its unveiling in September with a goal of delivering better performance / power efficiency over the generic ACPI CPUFreq driver used on Linux systems. AMD's P-State driver makes use of ACPI CPPC that is supported on Zen 2 and newer processors for making more precise handling and better informed decisions around ramping up/down the performance state of the processor.
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