Interaction with sched-ext schedulers

[wallentx]

Ignorant question:
My understanding of CPU functionality in Linux is pretty “cartoon-world” — it’s all based on me trying to optimize for specific workloads without a solid foundation in how it all actually works. I’ve mostly been benchmarking and tweaking things I only partly understand, learning that I can twist some knobs and pull some levers to make benchmark scores go up. Because of that, I’ve probably lumped a bunch of unrelated concepts into the same bucket.

From https://github.com/sched-ext/scx I'm using the scx_lavd scheduler on my laptops and steam deck, and I'm using scx_layerd on my server.

• Are these in anyway competing or conflicting what CoreFreq is doing?
• CoreFreq doesn't have its own scheduler, but could it benefit from having one?

[wallentx]

And I suppose as a follow-up question — I see CoreFreq as the only app I've ever used that seems to have all of the information about all aspects of my system hardware capabilities, and it's current state.

So my cartoon-world brain wonders: if sched-ext lets you write custom schedulers, could CoreFreq be the perfect "brain" for a scx_corefreq? A scheduler that could steer work to cooler cores before throttling, push background jobs to E-cores, and juggle workloads to stay under a power cap without tanking performance, etc.?

[cyring]

Hello,

Source code maintenance and ports to remaining hardware are the last actions I want to carry on the CoreFreq project.

Regards.