Netgear R7800 exploration (IPQ8065, QCA9984)

[hnyman]

For both of your questions, monitoring is easy with LuCI statistics, which has functionality for both of those measurements. Just install LuCI statistics, plus the needed collectd modules: collectd-mod-cpufreq and collectd-mod-thermal

If you want more manual native Linux kernel stuff, advice below.

@oleg68

How can I monitor the current CPU speed of IPQ806 and limit it with some values?

Earlier in this same thread, from this message onward:

Netgear R7800 exploration (IPQ8065, QCA9984)

The easiest way is to install the LuCI statistics package and also the collectd-mod-cpufreq package that enables CPU frequency monitoring. (you might also install collectd-mod-thermal to see the CPU temps) Or you can also look the current value from console: root@LEDE:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq 384000 root@LEDE:~# cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_cur_freq 384000 When there is more load, it might look like this: root@LEDE:~# cat /sys/devices/…

You can manipulate the speed properties just like for other normal Linux kernels. But the manipulation possibilities are rather limited. Mostly you can adjust the scaling governor, is it "performance" = always max, or "ondemand" = changes according to the CPU load (=the default in ipq806x).
Example e.g. in CPU frequency scaling driver for mvebu (WRT3200ACM etc.)

@oleg68

How can I monitor the current CPU temperature?

Relevant discussion also in this thread: Supporting thermal sensors on ipq806x