AMD Ryzen PCs May See More Power Savings Out-Of-The-Box With Linux 6.14

[phoronix]

Phoronix: AMD Ryzen PCs May See More Power Savings Out-Of-The-Box With Linux 6.14

AMD Ryzen systems with the upcoming Linux 6.14 kernel may see increased power savings out-of-the-box due to an AMD P-State driver change queued up as part of the new power management code for this next version of the Linux kernel...

https://www.phoronix.com/news/AMD-P-State-Ryzen-Linux-6.14

[ernstp]

So these are settings used together with amd_pstate=active? I wonder how it compares to amd_pstate=guided...

[rrveex]

So these are settings used together with amd_pstate=active? I wonder how it compares to amd_pstate=guided...

It compares similar to how Arch compares to Cachy. Give or take 0.02some% difference in speed / power consumption. I have a zen3 epyc and a 7950x - played a lot with the settings and didn't notice any difference. Out of boredom, mind you, it was already well documented here:

https://www.phoronix.com/review/linux-63-amd-epyc-epp

Perhaps it makes some difference if you own a datacenter and have some special/predictable workload. But then I'd assume you don't care about the "default" kernel setting... or run 6.14 (non-LTS)... or wait until this _formidable_ default gets to the next LTS.