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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

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Can I overclock an android tablet with termux? (piefed.blahaj.zone)

submitted 8 hours ago* (last edited 3 hours ago) by akunohana@piefed.blahaj.zone to c/linux@lemmy.ml

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EDIT3: this is NOT an overclock! Manually setting a scaling governor does not forcibly increase the intended frequency range of the CPU clock! Setting the scaling governor has more to do with performance management. In my case, setting it to "performance", it simply forces the cpu to always run at the maximum frequency as designed by the manufacturer. Further reading here and here. Thank you @nocteb@feddit.org for the reminder!

EDIT2: the tablet is rooted with Magisk ( https://topjohnwu.github.io/Magisk/install.html ) and Termux is running with superuser privileges granted through Magisk. The below command was issued after su - ing into a root shell. "performance" was echo ed into all available /sys/devices/system/cpu/cpufreq/.../scaling_governors, meaning, there are several subdirectories called policy[0...] in which the scaling_governor files reside.

EDIT: echo ing “performance” to /sys/devices/system/cpu/cpufreq/policy0/scaling_governor seems to have maxed out the cpu clockspeed! Now the tablet is snappy as hell! It’ll be interesting to see how battery drain and heat are affected by this. Thank you @tal@lemmy.today !

Say, by sending some value to something inside /sys/.../cpu or the likes. I have already aggressively debloated the tablet, but I like to experiment and I am not afraid to destroy the tablet since I bought it for 150 bucks at sale. Or pehaps there is some Magisk module that can do this?

The tablet is a Samsung Galaxy A9+.

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[–] akunohana@piefed.blahaj.zone 3 points 5 hours ago* (last edited 5 hours ago) (1 children)

EDIT: I'm running stock Android rooted with Magisk. OneUI 7, Android 15, Kernel 5.4.249

I haven't tried rebooting yet, but I'm pretty sure it resets on reboot. Also, my only evidence that it worked is what cpuinfo_cur_freq reports, and because of how Android seems to works with its virtual filesystems and Termux only being a virtual terminal, I'm actually unsure of how to measure the true frequencies in any other way. Here are two screenshots anyway. 1804800 is the maximum available frequency.

[–] vapor_body@lemmy.ml 2 points 5 hours ago

Well keep everyone posted! I've got some old stock Android devices I'd love to fuck around with more but having to intervene with all of them is a tremendous boner killer