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On Kernel 6.4+, is there a way to limit the clockspeed of my processor on AMD-Pstate-EPP? (amd_pstate=active) (lemmy.world)

submitted 1 year ago by [email protected] to c/[email protected]

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I'd like to set limits on the clockspeed of my laptop for efficiency and to reduce heat and fan usage. Is there some way I can do this in AMD's Pstate-EPP driver?

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[–] [email protected] 1 points 1 year ago (1 children)

Could you just switch to the power save profile?

[–] [email protected] 1 points 1 year ago (1 children)

I've done that, but I want to experiment with lower clocks. In the past, I've found efficiency gains by limiting clocks to 70 to 90 percent. I want to try this on my current laptop, and I really like Epp driver so I'd like to use it.

It is already set to the 'power' policy with the powersaving governor. Just want that last touch.

[–] [email protected] 1 points 1 year ago (1 children)

Here's the Redhat docs for it: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/monitoring_and_managing_system_status_and_performance/tuning-cpu-frequency-to-optimize-energy-consumption_monitoring-and-managing-system-status-and-performance

[–] [email protected] 1 points 1 year ago

This seems to mostly apply to Intel, but this is awesome. Hopefully, AMD will get a page or support the same stuff.