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

[phoronix]

Phoronix: 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. Fast CPPC aims to allow the processor to deliver higher performance at the same power consumption...

https://www.phoronix.com/news/AMD-Fast-CPPC-v4-Linux

[euduvda]

Nice! 👍

My 7640HS PRO laptop thanks everyone involved and asks to keep working for complete Linux support.

[Kjell]

Would love to see a fresh round of benchmarks with CPPC + AMD P-State + Preferred Core + various scaling governors to showcase the setup with highest performance per watt

[aerospace]

"Some Zen4 processors" so basically there's a Zen4+ floating around?

[geerge]

"Some Zen4 processors" so basically there's a Zen4+ floating around?

The mobile parts which have monolithic silicon with a different design, AFAIK.

[Anux]

The mobile parts which have monolithic silicon with a different design, AFAIK.

No, the mobile cores have the exact same Zen 4 design. Just monolithic and less L3. Zen+ was a slightly different arch from Zen (cache layout, clocking mechanism).

[geerge]

No, the mobile cores have the exact same Zen 4 design. Just monolithic and less L3. Zen+ was a slightly different arch from Zen (cache layout, clocking mechanism).

They have the same cores, but they had to tape a new die design. What that means for CPPC I have no idea.

[brent]

Isn't it also (or even mostly) a platform level feature? If you want to switch frequency and voltage very quickly, you need regulators capable of that.