Ubuntu Phone - Checking CPU state and power consumtion
Daniel Nashed – 7 October 2026 21:32:26
It is getting more interesting. The phone has 8 CPU cores.
- 4 Efficiency cores
- 4 Performance cores with a prime core with a bit more power
You can turn off individual cores. But that does not change idle power consumption.
ChatGPT wrote a nice script for me to include also battery and USB status.
That's pretty cool for performance / efficiency spelunking.
In my case I hooked up the phone with a power bank:
Turning off CPUs does not make a big difference. It looks like the kernel is pretty effective.
I might later tune maximum CPU frequency.
And I might add scripts to a GitHub project later.
What I found so far is pretty interesting.
I have a second script which shows the CPU/power information per interval.
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