によると、sensors
私のCPUコアの臨界温度は100℃です。ラップトップを使用するときは、温度が95℃以上に上昇しません。したがって、センサーに欠陥があるか、何らかの理由で熱調整がより低い値に設定されていますが、実際には重要ではありません。私はIntel i7を持っており、Thermald.serviceが実行されており、Arch Linuxを使用しています。
しかし、95℃は高すぎるので値を下げたいです。 75℃または80℃で熱調整したい。簡単だと思いましたが、Googleに情報がほとんどなく、heatdの構成に関するドキュメントも不足しているようです。
頑張った
dbus-send --system --dest=org.freedesktop.thermald /org/freedesktop/thermald org.freedesktop.thermald.SetUserPassiveTemperature string:cpu uint32:80000
マンページに示すように、実行stress
温度は依然として95度まで高い。
それでは、熱調整が発生する値をどのように減らしますか?
答え1
シェルスクリプトによるハッキングソリューションがあります。https://github.com/Sepero/temp-throttle/
#!/bin/bash
# Usage: temp_throttle.sh max_temp
# USE CELSIUS TEMPERATURES.
# version 2.20
cat << EOF
Author: Sepero 2016 (sepero 111 @ gmx . com)
URL: http://github.com/Sepero/temp-throttle/
EOF
# Additional Links
# http://seperohacker.blogspot.com/2012/10/linux-keep-your-cpu-cool-with-frequency.html
# Additional Credits
# Wolfgang Ocker <weo AT weo1 DOT de> - Patch for unspecified cpu frequencies.
# License: GNU GPL 2.0
# Generic function for printing an error and exiting.
err_exit () {
echo ""
echo "Error: $@" 1>&2
exit 128
}
if [ $# -ne 1 ]; then
# If temperature wasn't given, then print a message and exit.
echo "Please supply a maximum desired temperature in Celsius." 1>&2
echo "For example: ${0} 60" 1>&2
exit 2
else
#Set the first argument as the maximum desired temperature.
MAX_TEMP=$1
fi
### START Initialize Global variables.
# The frequency will increase when low temperature is reached.
LOW_TEMP=$((MAX_TEMP - 5))
CORES=$(nproc) # Get number of CPU cores.
echo -e "Number of CPU cores detected: $CORES\n"
CORES=$((CORES - 1)) # Subtract 1 from $CORES for easier counting later.
# Temperatures internally are calculated to the thousandth.
MAX_TEMP=${MAX_TEMP}000
LOW_TEMP=${LOW_TEMP}000
FREQ_FILE="/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies"
FREQ_MIN="/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq"
FREQ_MAX="/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq"
# Store available cpu frequencies in a space separated string FREQ_LIST.
if [ -f $FREQ_FILE ]; then
# If $FREQ_FILE exists, get frequencies from it.
FREQ_LIST=$(cat $FREQ_FILE) || err_exit "Could not read available cpu frequencies from file $FREQ_FILE"
elif [ -f $FREQ_MIN -a -f $FREQ_MAX ]; then
# Else if $FREQ_MIN and $FREQ_MAX exist, generate a list of frequencies between them.
FREQ_LIST=$(seq $(cat $FREQ_MAX) -100000 $(cat $FREQ_MIN)) || err_exit "Could not compute available cpu frequencies"
else
err_exit "Could not determine available cpu frequencies"
fi
FREQ_LIST_LEN=$(echo $FREQ_LIST | wc -w)
# CURRENT_FREQ will save the index of the currently used frequency in FREQ_LIST.
CURRENT_FREQ=2
# This is a list of possible locations to read the current system temperature.
TEMPERATURE_FILES="
/sys/class/thermal/thermal_zone0/temp
/sys/class/thermal/thermal_zone1/temp
/sys/class/thermal/thermal_zone2/temp
/sys/class/hwmon/hwmon0/temp1_input
/sys/class/hwmon/hwmon1/temp1_input
/sys/class/hwmon/hwmon2/temp1_input
/sys/class/hwmon/hwmon0/device/temp1_input
/sys/class/hwmon/hwmon1/device/temp1_input
/sys/class/hwmon/hwmon2/device/temp1_input
null
"
# Store the first temperature location that exists in the variable TEMP_FILE.
# The location stored in $TEMP_FILE will be used for temperature readings.
for file in $TEMPERATURE_FILES; do
TEMP_FILE=$file
[ -f $TEMP_FILE ] && break
done
[ $TEMP_FILE == "null" ] && err_exit "The location for temperature reading was not found."
### END Initialize Global variables.
### START define script functions.
# Set the maximum frequency for all cpu cores.
set_freq () {
# From the string FREQ_LIST, we choose the item at index CURRENT_FREQ.
FREQ_TO_SET=$(echo $FREQ_LIST | cut -d " " -f $CURRENT_FREQ)
echo $FREQ_TO_SET
for i in $(seq 0 $CORES); do
# Try to set core frequency by writing to /sys/devices.
{ echo $FREQ_TO_SET 2> /dev/null > /sys/devices/system/cpu/cpu$i/cpufreq/scaling_max_freq; } ||
# Else, try to set core frequency using command cpufreq-set.
{ cpufreq-set -c $i --max $FREQ_TO_SET > /dev/null; } ||
# Else, return error message.
{ err_exit "Failed to set frequency CPU core$i. Run script as Root user. Some systems may require to install the package cpufrequtils."; }
done
}
# Will reduce the frequency of cpus if possible.
throttle () {
if [ $CURRENT_FREQ -lt $FREQ_LIST_LEN ]; then
CURRENT_FREQ=$((CURRENT_FREQ + 1))
echo -n "throttle "
set_freq $CURRENT_FREQ
fi
}
# Will increase the frequency of cpus if possible.
unthrottle () {
if [ $CURRENT_FREQ -ne 1 ]; then
CURRENT_FREQ=$((CURRENT_FREQ - 1))
echo -n "unthrottle "
set_freq $CURRENT_FREQ
fi
}
get_temp () {
# Get the system temperature.
TEMP=$(cat $TEMP_FILE)
}
### END define script functions.
echo "Initialize to max CPU frequency"
unthrottle
# Main loop
while true; do
get_temp # Gets the current temperature and set it to the variable TEMP.
if [ $TEMP -gt $MAX_TEMP ]; then # Throttle if too hot.
throttle
elif [ $TEMP -le $LOW_TEMP ]; then # Unthrottle if cool.
unthrottle
fi
sleep 3 # The amount of time between checking temperatures.
done