AMD P-State Guided Autonomous Mode Coming For Linux 6.4

[PAUL007]

You could enable it using this : https://github.com/DavidS95/Smokeless_UMAF

too risky got one machine maybe later

[PAUL007]

what zen are you on? with zen 3 and above, cppc is needed by default. at least on windows to help properly keep a thread on a ccd and be driven by the strongest two cores on that ccd.

zen2 r7 4800h

[PAUL007]

Have some Prep-H and remember at least some kernel commands override firmware settings. (BIOS is long since dead, stop calling UEFI "BIOS"!)

which commands bios=UEFI ?

[emansom]

too risky got one machine maybe later

There's no risk, it chain loads an EFI program into RAM.

It doesn't write nor modify the existing UEFI.

It is as risky as booting from an Ubuntu ISO from USB.

[PAUL007]

There's no risk, it chain loads an EFI program into RAM.

It doesn't write nor modify the existing UEFI.

It is as risky as booting from an Ubuntu ISO from USB.

Thanks Its working , Can I remove usb after boot ?

only amd_pstate=passive ,active dosen't tried blacklisting acpi-cpufreq
So my idle frequency has dropped way bellow 1ghz which is more efficient
top frequency by default showing 4.2ghz to 4.3ghz

epp driver will not work as it needs pstate active mode ?

[Keith Myers]

Michael, you said you were going to run some amd_pstate=guided tests in your amd_pstate_epp test article.

I recently finished up some AMD P-State EPP comparison benchmarks on 4th Gen EPYC and should have those Linux 6.3 benchmarks posted next week. I'll be conducting some AMD P-State Guided Autonomous Mode benchmarks soon as well.

Did you forget about that? Been waiting for a while now.