I find it irritating when fans on my laptop start spinning out of control, especially if it's caused by something non-critical or running in the background.
I caught myself going to htop regularly in
order to find out what process is slamming
the CPU and then SIGKILL it by pressing F9
and then 9.
That's why I decided to write a script
that just kills the relevant process and
therefore silences the fans. No htop necessary.
#! /usr/bin/env bash
# Silences the fans of your computer. Kills processes
# which use more than threshold percent
# of your CPU.
# The default threshold, processes using more than
# this percentage of the CPU will be killed with
# SIGKILL.
threshold=90
# List PID, CPU percentage and command name.
ps -eo pid,%cpu,args |
# Filter processes that are above the threshold.
awk -v threshold=$threshold '{if($2==$2+0 && $2 > threshold) print $1 " " $3}' |
# Sort by CPU usage to kill the worst offenders first.
sort -n |
# # Kill the passed process and report it being killed.
xargs -L1 bash -c 'kill -9 $0 && printf "killed: $1\n"'
Put it in your $PATH and call it with
$ silencio
In order to go full Harry Potter on your fans.