Eventually "Schedutil" Could Replace Linux's Existing CPU Scaling Governors

[itoffshore]

Schedutil is great if you enjoy stuttering in games.

Thanks for this - switching to the performance governor fixed stuttering with a 2070 Super - see more details here.

previously schedutil was fine with a Rx 570 8gb passthrough (& seemed to actually run better than the performance governor on Ryzen 3700x)

I think this is related to message signal interrupts on Nvidia GPUs

2021 update - using schedutil (Arch Linux default) instead of the performance governor gives me 10 FPS more in the hitman 2 benchmark

[abott]

Only that AMD CPPC will be same as AMD DAL/DC Firstly rejected and then a accepted

No chance of that for something so miniscule as scheduling and freq scaling. Improve what exists, or die.

[timofonic]

yes, you have the reason in that side.. but I don't know if schedutil can improve so much because seeing the benchs you had posted with different governors...
I don't know if linux kernel mantainers are "too" optimistic"

I hope Linux kernel maintainers are extremely pessimistic, performance and security paranoid.

On the other hand, I consider Linux kernel scheduler needs to hugely improve in an urgent manner these days.

[amdtesterman]

P-State was merged many years ago now, prior to Schedutil being in the kernel.

yes, you have the reason in that side.. but I don't know if schedutil can improve so much because seeing the benchs you had posted with different governors...
I don't know if linux kernel mantainers are "too" optimistic"

[duby229]

Yeah, but Performance doesn't scale the CPU at all, it just stays at full clock. That's not a valid comparison at all.

[Michael]

The question is why not to say the same to intel with intel pstate. Is my only one question. Because I dude amd code is so different from intel ones but the old age that have intel ones

P-State was merged many years ago now, prior to Schedutil being in the kernel.

[skeevy420]

Well that explains a lot about AMD's testing procedures

DarkFoss I don't have any stuttering issues and I pretty much stick to schedutil. Granted that I also run my games with nice --10 and, anecdotally, I seem to have better response and less lag out of programs ran with nice --5 to --10 since -10 is what my user limits are set at.

[Peter Fodrek]

What are you saying. I cannot understand you. Please elaborate, you don't need to do broken quoting of everything.

Only that AMD CPPC will be same as AMD DAL/DC Firstly rejected and then a accepted

[amdtesterman]

The question is why not to say the same to intel with intel pstate. Is my only one question. Because I dude amd code is so different from intel ones but the old age that have intel ones

[Venemo]

Sounds to me like AMD can still rework their CPPC patches to work inside schedutil instead of being a separate governor.