Scaling frequency on a singe core

Autonomous Machines Jetson & Embedded Systems Jetson TX1
1

Hello,

When I set the cpu frequency to “userspace” on one particular core (say core number 2), it is changed to all the cores. Similarly when I set the frequency to one core, it seems to be effected to all the cores. It is like they are working like a cluster. Is there a setting which I can use to disable it?

I am on TX1.

ubuntu@tegra-ubuntu:~$ uname -a
Linux tegra-ubuntu 3.10.96-tegra #1 SMP PREEMPT Wed Sep 28 17:51:08 PDT 2016 aarch64 aarch64 aarch64 GNU/Linux

Thanks a lot

2

Hi solidrepellent,
We confirm your observation. You cannot scale frequency on one single core. The change will get applied to all cores.

You can check the loading of each core via tegrastats.

1 Like
3

Thanks for confirming this.