文档结构整理

2023-03-03 16:37:07 +08:00
parent c384d28039
commit 13976f0416
94 changed files with 101 additions and 102 deletions
@@ -0,0 +1,100 @@
+#!/bin/sh
+### BEGIN INIT INFO
+# Provides:       cpufrequtils
+# Required-Start: $remote_fs loadcpufreq
+# Required-Stop:
+# Default-Start:  2 3 4 5
+# Default-Stop:
+# Short-Description: set CPUFreq kernel parameters
+# Description: utilities to deal with CPUFreq Linux 
+#       kernel support
+### END INIT INFO
+# 
+
+DESC="CPUFreq Utilities"
+
+PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
+CPUFREQ_SET=/usr/bin/cpufreq-set
+CPUFREQ_INFO=/usr/bin/cpufreq-info
+CPUFREQ_OPTIONS=""
+
+# use lsb-base
+. /lib/lsb/init-functions
+
+# Which governor to use. Must be one of the governors listed in:
+#   cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
+#
+# and which limits to set. Both MIN_SPEED and MAX_SPEED must be values
+# listed in:
+#   cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
+# a value of 0 for any of the two variables will disabling the use of 
+# that limit variable.
+#
+# WARNING: the correct kernel module must already be loaded or compiled in.
+# 
+# Set ENABLE to "true" to let the script run at boot time.
+# 
+# eg:   ENABLE="true"
+#       GOVERNOR="ondemand"
+#       MAX_SPEED=1000
+#       MIN_SPEED=500
+
+ENABLE="true"
+GOVERNOR="powersave"
+MAX_SPEED="0"
+MIN_SPEED="0"
+
+check_governor_avail() {
+        info="/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors"
+        if [ -f $info ] && grep -q "\<$GOVERNOR\>" $info ; then
+                return 0;
+        fi
+        return 1;
+}
+
+[ -x $CPUFREQ_SET ] || exit 0
+
+if [ -f /etc/default/cpufrequtils ] ; then
+        . /etc/default/cpufrequtils
+fi
+
+# if not enabled then exit gracefully
+[ "$ENABLE" = "true" ] || exit 0
+
+if [ -n "$MAX_SPEED" ] && [ $MAX_SPEED != "0" ] ; then
+        CPUFREQ_OPTIONS="$CPUFREQ_OPTIONS --max $MAX_SPEED"
+fi
+
+if [ -n "$MIN_SPEED" ] && [ $MIN_SPEED != "0" ] ; then
+        CPUFREQ_OPTIONS="$CPUFREQ_OPTIONS --min $MIN_SPEED"
+fi
+
+if [ -n "$GOVERNOR" ] ; then
+        CPUFREQ_OPTIONS="$CPUFREQ_OPTIONS --governor $GOVERNOR"
+fi
+
+CPUS=$(cat /proc/stat|sed -ne 's/^cpu\([[:digit:]]\+\).*/\1/p')
+RETVAL=0
+case "$1" in
+        start|force-reload|restart|reload)
+                log_action_begin_msg "$DESC: Setting $GOVERNOR CPUFreq governor"
+                if check_governor_avail ; then
+                        for cpu in $CPUS ; do
+                                log_action_cont_msg "CPU${cpu}"
+                                $CPUFREQ_SET --cpu $cpu $CPUFREQ_OPTIONS 2>&1 > /dev/null || \
+                                        RETVAL=$?
+                        done
+                        log_action_end_msg $RETVAL ""
+                else
+                        log_action_cont_msg "disabled, governor not available"
+                        log_action_end_msg $RETVAL
+                fi
+                ;;
+        stop)
+                ;;
+        *)
+                echo "Usage: $0 {start|stop|restart|reload|force-reload}"
+                exit 1
+esac
+
+exit 0