How can I confirm how fast the Cortex-A57 and CortexA53 cores are being clocked at on my Juno board?

hello expert,

1. # echo 800000 > /scaling_setspeed

2. # cat /scaling_cur_cpufreq

    # 850000

   No matter scaling_governor is ondemand or userspace, this still the same.

   that is i cannot fixed cpufreq at 800MHz, what is the correct operation?

thanks.

hello expert,

1. # echo 800000 > /scaling_setspeed

2. # cat /scaling_cur_cpufreq

    # 850000

   No matter scaling_governor is ondemand or userspace, this still the same.

   that is i cannot fixed cpufreq at 800MHz, what is the correct operation?

thanks.

Which core are you trying on ?

The list is as follows:

A57 : 450, 800, 1100 MHz

A53 : 450, 700, 850 MHz

So if you try 800MHz on A53, it choose closer option to that which is 850MHz.