Jeg har fundet ud af at Debian ikke bruger nogen dæmon til at sætte frekvensen, men derimod gør kernen det selv.
Jeg har fulgt guiden:
http://technowizah.com/2007/01/debian-how-to-cpu-frequency-management.htmlMen jeg kan ikke lave "modprobe cpufreq_performance", fordi jeg ikke har "performance.ko" i lib/modules/2.6.26-1-686/kernel/drivers/cpufreq.
Det undrer mig at jeg ikke har filen.
Jeg fulgte dig eksempel med bare at gå ind i etc/init.d og finde noget med CPUfreq.
Jeg fandt filen cpufrequtils, og her er indholdet, jeg har prøvet at sætte scriptet til performance som man kan se. Men applet'en CPU Frekvesskalering, viser at den stadig er sat til Ondemand. Men at frekvensen nu er sat til maximum:
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# 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="performance"
MAX_SPEED="1900000"
MIN_SPEED="1900000"
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
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Hvordan får jeg den sat til performance istedet fof Ondemand, selvom frekvensen er sat til maximum?
