freqcpu
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293019309a
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141
freqcpu
Executable file
141
freqcpu
Executable file
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#!/bin/bash
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# Configuration file
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config_file=/etc/freqcpu/freqcpu.conf
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# Default config
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cores_cpu=$(grep -c ^processor /proc/cpuinfo 2> /dev/null)
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freq_min="2000Mhz"
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freq_max="3600Mhz"
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governor=$(cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor 2> /dev/null | head -1)
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#governor=powersave
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# Check dependencies
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path_check="/usr/bin /bin /usr/local/bin $HOME/.local/bin $(brew --prefix 2> /dev/null)/bin"
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dependencies="dirname basename cpufreq-set expr cat watch grep"
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dependencies_found=""
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dependencies_not_found=""
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for checkPath in $path_check ; do
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for checkDependencies in $dependencies ; do
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if [ -f $checkPath/$checkDependencies ] ; then
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dependencies_found="$dependencies_found $checkDependencies"
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fi
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done
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done
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for notFound in $dependencies ; do
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check_found_one=$(echo $dependencies_found | grep " $notFound")
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check_found_two=$(echo $dependencies_found | grep "$notFound ")
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if_not_found="$check_found_one$check_found_two"
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if [ -z "$if_not_found" ] ; then
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dependencies_not_found="$dependencies_not_found $notFound"
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fi
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done
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# Show if all tools are installed
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if [ -z "$dependencies_not_found" ] ; then
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echo > /dev/null
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else
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echo "$(basename $0): Some required tools are not installed:$dependencies_not_found"
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exit 1
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fi
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# Function to check root permissions
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function check_root() {
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mkdir -p /etc/root 2> /dev/null
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rootperm=$?
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if [ $rootperm -eq 0 ] ; then
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rm -rf /etc/root
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else
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echo "$(basename $0): Root permission is required to perform this operation"
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exit
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fi
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}
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function help() {
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echo ""
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if [ -f ${config_file} ] ; then
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source ${config_file}
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fi
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echo "$(basename $0) - limit CPU frequency"
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echo ""
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echo "* Config:"
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echo " freq_min: ${freq_min}"
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echo " freq_max: ${freq_max}"
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echo " cores_cpu: ${cores_cpu}"
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echo " governor: ${governor}"
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echo ""
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echo "* Syntax:"
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echo ""
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echo " $(basename $0) -c --> create initial configuration file"
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echo " $(basename $0) -d --> run daemon for set CPU frequency"
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echo " $(basename $0) -r --> set limit CPU frequency"
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echo " $(basename $0) -f --> show current CPU frequency"
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echo " $(basename $0) -g --> show current CPU governor"
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echo " $(basename $0) -o --> show CPU cores"
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echo " $(basename $0) -h --> show help"
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echo ""
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exit 0
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}
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function create_config() {
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mkdir -p /etc/freqcpu
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echo "cores_cpu=${cores_cpu} # Set number of CPUs" > ${config_file}
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echo "freq_min=${freq_min}" >> ${config_file}
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echo "freq_max=${freq_max}" >> ${config_file}
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echo "governor=${governor} # Set powersave, performance, balanced" >> ${config_file}
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echo "$(basename $0): created ${config_file} successfully"
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exit 0
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}
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function check_config() {
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if [ -f ${config_file} ] ; then
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source ${config_file}
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else
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echo "$(basename $0): no configuration file exists in /etc/freqcpu/freqcpu.conf"
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echo "$(basename $0): first run the command -> freqcpu -c"
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exit 0
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fi
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}
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# Run commands
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if [ "${1}" == "-d" ] ; then
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check_root
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check_config
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source ${config_file}
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echo "$(basename $0) - running limit CPU frequency daemon"
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sleep 10
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frecuency=0
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num_cpus_total=$(expr ${cores_cpu} - 1)
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num_cpu=0
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while [ ${frecuency} -eq 0 ] ; do
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while [ ${num_cpu} -le ${num_cpus_total} ] ; do
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echo "set CPU ${num_cpu} freq (${freq_min}/${freq_max}) (governor: ${governor})"
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cpufreq-set --cpu ${num_cpu} --min ${freq_min} --max ${freq_max} --governor ${governor}
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num_cpu=$(expr ${num_cpu} + 1)
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done
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sleep 3600
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done
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elif [ "${1}" == "-c" ] ; then
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check_root
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create_config
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elif [ "${1}" == "-r" ] ; then
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check_root
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check_config
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source ${config_file}
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num_cpus_total=$(expr ${cores_cpu} - 1)
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num_cpu=0
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while [ ${num_cpu} -le ${num_cpus_total} ] ; do
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echo "set CPU ${num_cpu} freq (${freq_min}/${freq_max}) (governor: ${governor})"
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cpufreq-set --cpu ${num_cpu} --min ${freq_min} --max ${freq_max} --governor ${governor}
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num_cpu=$(expr ${num_cpu} + 1)
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done
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elif [ "${1}" == "-f" ] ; then
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watch -n1 "cat /proc/cpuinfo | grep \"^[c]pu MHz\""
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elif [ "${1}" == "-g" ] ; then
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cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor 2> /dev/null | head -1
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elif [ "${1}" == "-o" ] ; then
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grep -c ^processor /proc/cpuinfo 2> /dev/null
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else
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help
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fi
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