[AMD Official Use Only - General] Hi : Thanks. I will check this issue and fix it as soon as possible. > -----Original Message----- > From: Lucas Lee Jing Yi <lucasleeeeeeeee@xxxxxxxxx> > Sent: Monday, February 19, 2024 12:11 AM > To: rafael@xxxxxxxxxx > Cc: Yuan, Perry <Perry.Yuan@xxxxxxx>; Du, Xiaojian > <Xiaojian.Du@xxxxxxx>; Deucher, Alexander > <Alexander.Deucher@xxxxxxx>; bp@xxxxxxxxx; Sharma, Deepak > <Deepak.Sharma@xxxxxxx>; Meng, Li (Jassmine) <Li.Meng@xxxxxxx>; > linux-acpi@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux- > kselftest@xxxxxxxxxxxxxxx; linux-pm@xxxxxxxxxxxxxxx; Limonciello, Mario > <Mario.Limonciello@xxxxxxx>; Fontenot, Nathan > <Nathan.Fontenot@xxxxxxx>; oleksandr@xxxxxxxxxxxxxx; > rafael.j.wysocki@xxxxxxxxx; Huang, Ray <Ray.Huang@xxxxxxx>; Huang, > Shimmer <Shimmer.Huang@xxxxxxx>; skhan@xxxxxxxxxxxxxxxxxxx; > viresh.kumar@xxxxxxxxxx; x86@xxxxxxxxxx > Subject: Re: [PATCH V14 0/7] amd-pstate preferred core > > Caution: This message originated from an External Source. Use proper > caution when opening attachments, clicking links, or responding. > > > Dear all, > I have found an issue with the patchset when applying on 6.7, leading to a > large degradation in performance. > > On my 7840HS on *STOCK* 6.7 highest_perf is reported as 196, not 166 as > assumed in the patchset. Applying the patchset causes highest_perf to be > misreported and hence a misreported maximum frequency as well, at > 4.35GHz instead of 5.14GHz, leading to the degradation in performance. > However, On my 5950X, highest_perf is indeed reported as 166 before and > after applying the patchset. > > Hence, I propose the following patch (should be attached). > > I do apologize for any mistakes as I am new to this and this is my first email on > the mailing list. > > Cheers! > Lucas
