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Updated Patches For AMD "Fast CPPC" To Yield Higher Performance At Same Power Level


One of the patch series that sadly was not ready in time for the Linux 6.10 merge window and thus will need to wait a few months for at least the next kernel is enabling AMD Fast CPPC support for Zen 4 processors

One of the patch series that sadly was not ready in time for the Linux 6.10 merge window and thus will need to wait a few months for at least the next kernel is enabling AMD Fast CPPC support for Zen 4 processors. Earlier this year I wrote about AMD's work on enabling Fast CPPC for Linux as a feature new to existing Zen 4 processors. The patches when tested on an AMD Ryzen 7 7840HS have pointed to Fast CPPC allowing 0~2% better performance while the performance-per-Watt can see as much as a ~6% benefit.

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AMD Enabling "Fast CPPC" For Even Greater Linux Performance & Power Efficiency On Some CPUs