One of the features sadly not having made it in time for the Linux v6.8 kernel merge window is the AMD P-State Preferred Core support.
This is becoming more important with AMD Ryzen processors beginning to see a combination of Zen 4 and Zen 4C cores and other cases like AMD 3D V-Cache enabled processors where some cores would be preferred over others for performance sensitive work.
The platform communicates these core preferences via the ACPI Collaborative Processor Performance Control (CPPC) data.
The AMD P-State Preferred Core support for Linux over the course of the patch history has adapted to be able to support dynamic core rankings based on workload and perform conditions such as around thermal and power changes.
Sent out today was the 13th iteration of the AMD Preferred Core patches for the Linux kernel.
Nothing too major though so hopefully this will cross the finish line soon: it’s too late now for Linux v6.8 but perhaps we’ll see this sought after feature ready for v6.9 in the spring.
The original article contains 291 words, the summary contains 171 words. Saved 41%. I’m a bot and I’m open source!
This is the best summary I could come up with:
One of the features sadly not having made it in time for the Linux v6.8 kernel merge window is the AMD P-State Preferred Core support.
This is becoming more important with AMD Ryzen processors beginning to see a combination of Zen 4 and Zen 4C cores and other cases like AMD 3D V-Cache enabled processors where some cores would be preferred over others for performance sensitive work.
The platform communicates these core preferences via the ACPI Collaborative Processor Performance Control (CPPC) data.
The AMD P-State Preferred Core support for Linux over the course of the patch history has adapted to be able to support dynamic core rankings based on workload and perform conditions such as around thermal and power changes.
Sent out today was the 13th iteration of the AMD Preferred Core patches for the Linux kernel.
Nothing too major though so hopefully this will cross the finish line soon: it’s too late now for Linux v6.8 but perhaps we’ll see this sought after feature ready for v6.9 in the spring.
The original article contains 291 words, the summary contains 171 words. Saved 41%. I’m a bot and I’m open source!