AMD P-State Guided Autonomous Mode Coming For Linux 6.4

[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 ?

[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]

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 ?

[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]

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

too risky got one machine maybe later

[aviallon]

Can we expect TLP or auto-cpufreq likely be a good all-in-one tool that takes care of tuning this stuff?

Would big distros tweak it for us?

I'm always scratching my head how my laptop gets way worse battery life on Linux than on Windows. The performance is practically the same. It makes me wonder why this is and. How much power efficiency is left on the table.

I already know video decoding and things like that are behind, but for basic stuff like documents and web browsing, it's jarring the difference in battery sometimes.

This is for both a Thinkpad T14 G3 AMD and a MacBook Air

Do you use TLP? You could gain a lot of battery life from it.
More info here : https://wiki.archlinux.org/title/TLP

[aviallon]

my amd ass burning watching these p-state news floating cant use the driver cause HP disabled cppc from bios.

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

[pieman]

my amd ass burning watching these p-state news floating cant use the driver cause HP disabled cppc from bios.

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.

[stormcrow]

my amd ass burning watching these p-state news floating cant use the driver cause HP disabled cppc from bios.

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

[shanedav4]

Let us know when they decide to stick to a set commands for the AMD_pstate driver.