Managing cpu voltage and clock speeds question.
#5
(12-31-2020, 03:10 AM)FeMike Wrote:
(12-25-2020, 12:04 AM)boteium Wrote: Changing cpu speed can be achieved via modifying file /sys/devices/system/cpu/cpufreq/policy0/scaling_max_freq and  /sys/devices/system/cpu/cpufreq/policy0/scaling_max_freq, assuming you are using schedutil scheduler. This process is the same regardless of which distribution you use or which arm device you use. As long as you're running linux, cpu speed can be altered this way. By the way, you should only use schedutil because this is a cpu with a mixture of big and little cores. Other cpu scheduler are not optimized to handle this big.little architecture the way schedutil does.

As for the cpu voltage, it cannot be changed during runtime. It can be changed via editing device tree but a reboot is needed for it to take effect. You will need to decompile /boot/dtbs/rockchip/rk3399-pinebook-pro.dtb, edit it, recompile it, and replace the original file.
Thank you. Very appreciative. I'll stick to the frequency thing and not mess with the voltage.

Soo, how did it go? Were you able to push the freq. at all? To what freq. were you able to push it (and how stable was it running)?  Tongue


(02-27-2021, 11:03 AM)pbpanon Wrote: i just change the governor via
"echo powersave |sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor"
be it conservative ondemand userspace powersave performance schedutil

The CPU governors aren't able to OC though, those are more to manage how the power and system resources are being used (if I'm not mistaken, but please correct me if I am Smile )
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Messages In This Thread
RE: Managing cpu voltage and clock speeds question. - by QuinTeknoLife - 04-29-2021, 01:48 PM

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