boost-tuner

#! /bin/bash

#----------------------------------------------------------------------
# Description: enable CPU boost only when given applications are running
#              will be unconditionally enabled if /tmp/boost exists
#
# Author: Artem S. Tashkinov
# Created at: Sun 05 Jan 2020 06:57:51 PM
# Computer: localhost.localdomain
# System: Linux 5.4.2-zen2 on x86_64
#
# Copyright (c) 2020 Artem S. Tashkinov  All rights reserved.
#----------------------------------------------------------------------

interval=10
apps="^gcc|^cpp|^ld|^make|^configure|^cmake"
fileon=/tmp/boost

handler=/sys/devices/system/cpu/cpufreq/boost

while :; do

    test ! -f "$handler" && echo "CPU frequency subsystem failure: boost not found" && exit 1
    result=`ps axco command | egrep "$apps"`

    if [ -n "$result" -o -f "$fileon" ]; then
        echo 1 > "$handler"
    else
        echo 0 > "$handler"
    fi

    sleep $interval
done