David Christensen wrote: >> But changing the profile (governor) doesn't produce any >> (noticable?) sound level change and also the temperature of >> the CPU and the GPU seem unaffected. > > You will not notice a change in CPU fan temperature or speed > profiles as a function of the Linux governor setting until > the motherboard CPU fan speed control is working and you > change the CPU load. > > Here is a Perl one-liner that should peg one core: > > $ perl -e "1 while 1"
OK, I wrote a script [last] and here is the result $ temp-gov CPU C (33.50 45.75) (100 iterations) conservative CPU C (45.88 46.38) (100 iterations) userspace CPU C (46.38 46.75) (100 iterations) powersave CPU C (46.75 47.00) (100 iterations) ondemand CPU C (47.00 47.00) (100 iterations) performance CPU C (47.00 47.25) (100 iterations) schedutil Hm ... the result seems to be pretty much identical for the governors anyway? #! /bin/zsh # # this file: # https://dataswamp.org/~incal/conf/.zsh/temp temp-gov () { local t=100 local cpu local cpu_min local cpu_max perl -e '1 while 1' & local pid=$! sleep 10 local i local g for g in $(cpufreq-info -g); do sudo cpufreq-set -g $g cpu_min=999 cpu_max=0 for i in {0..$t}; do cpu=$(sensors -j | jq -a '.["k10temp-pci-00c3"].Tdie.temp1_input') (( $cpu < $cpu_min )) && cpu_min=$cpu (( $cpu > $cpu_max )) && cpu_max=$cpu done printf "CPU C (%.2f %.2f) (%d iterations) %s\n" $cpu_min $cpu_max $t $g done kill $pid } -- underground experts united https://dataswamp.org/~incal