RBPI3B+ clock speed

[Stefan Parvu]

> - How can I see the current clock speed my RBPI is using at any moment ?

by checking system’s variables:

dev.cpu.0.freq_levels: 1400/-1 600/-1
dev.cpu.0.freq: 1400

this means now my system is using 1400 frequency vs 600. 

> 
> - How would you change the frequency of the clock speed which by default seems 
> set to 600MHz ? 

by simple setting powerd during rc.conf or manually start it. 

Are these correct ?