Them probably uses a special plugin device in the outlet.
I have this bash script you can use and have a general overview but I’m not totally sure if I fully understand it and if it’s the whole system’s wattage or only the CPU 🤷♂️
#! bash time=5 sum_1=$(cat /sys/class/powercap/*/energy_uj | awk 'BEGIN { sum = 0; } { sum += $1; } END { print sum; }' "$@"); echo "before" $sum_1 sleep $time; sum_2=$(cat /sys/class/powercap/*/energy_uj | awk 'BEGIN { sum = 0; } { sum += $1; } END { print sum; }' "$@"); echo "after" $sum_2 sum_1f=$(printf "%.0f" $sum_1) sum_2f=$(printf "%.0f" $sum_2) final_sum=$(echo "(($sum_2f - $sum_1f) / 1000000) / $time" | bc -l) #echo $final_sum | bc -l | xargs printf "%.2f\n" formated=$(echo $final_sum | bc -l | xargs printf "%.2f\n") echo $formated "w"
modeh@piefed.social 22 hours ago
I use a device similar to this. Pretty useful and handy.