RPI4 clock speeds and serial port ( temperatures idle and -j4 buildworld buildkernel )

[Klaus Cucinauomo]

>> 
>>>> Am 19.03.2021 um 18:43 schrieb bob prohaska <fbsd at www.zefox.net>:
>>> 
> I've enabled powerd and rebooted, console messages report that powerd
> started with no explicit errors. A -j4 buildworld is running now.
> 
> Should I expect to see powerd mess up the default mini-uart serial console?
> So far, it hasn't with top reporting less than 1% idle. That's confusing....
> 
> Thanks for writing!
> 
> bob prohaska

normally shouldn‘t mess up the console....
sysctl dev.cpu.0.freq  ... cpu.1.freq etc.
prints the current freq

-j4 shown c++ with ‚top‘ should 
run @ approx. 97% CPU-usage while ‚make‘ uses bit less 
Regards

K.