diff options
Diffstat (limited to 'src/pm-powersave')
| -rwxr-xr-x | src/pm-powersave | 73 |
1 files changed, 30 insertions, 43 deletions
diff --git a/src/pm-powersave b/src/pm-powersave index ff15d82..5d3638d 100755 --- a/src/pm-powersave +++ b/src/pm-powersave @@ -1,55 +1,42 @@ -#!/bin/sh - -# Simple low-power-mode script +#!/bin/bash +# +# Simple powersave script +# +# Copyright 2006 Red Hat, Inc. +# # Based on work from: # Bill Nottingham <notting@redhat.com> # Peter Jones <pjones@redhat.com> # David Zeuthen <davidz@redhat.com> # Richard Hughes <richard@hughsie.com> # -# Values are taken from the laptop-tools package -# Bart Samwel <bart@samwel.tk> +# This program is free software; you can redistribute it and/or modify +# it under the terms of version 2 of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# + +runpowerhooks() +{ + files="/etc/pm/power.d/*" + for file in $files ; do + [ -x $file ] && $file $1 + done +} if [ "$1" == "true" ] ; then - echo "SetLowPower ON" - DISK_IDLE_SECS=2 - DIRTY_WRITEBACK=30 - DIRTY_EXPIRE=30 - DIRTY_RATIO=60 - DIRTY_BACKGROUND_RATIO=1 + runpowerhooks true elif [ "$1" == "false" ] ; then - echo "SetLowPower OFF" - DISK_IDLE_SECS=0 - DIRTY_WRITEBACK=500 - DIRTY_EXPIRE=3000 - DIRTY_RATIO=40 - DIRTY_BACKGROUND_RATIO=10 + runpowerhooks false else - echo "Argument needs to be true or false" + echo "Argument needs to be true or false" >&2 exit 1 fi - -if [ ! -w "/proc/sys/vm/" ] ; then - # Use the raw kernel sysfs interface - echo "You do not have write access to /proc/sys/vm/" - exit 1 -fi - -# Seconds laptop mode has to to wait after the disk -# goes idle before doing a sync. -echo $DISK_IDLE_SECS > /proc/sys/vm/laptop_mode - -# Set dirty page values -echo $DIRTY_WRITEBACK > /proc/sys/vm/dirty_writeback_centisecs -echo $DIRTY_EXPIRE > /proc/sys/vm/dirty_expire_centisecs - -# Dirty synchronous ratio. At this percentage of dirty -# pages the process which calls write() does its own writeback. -echo $DIRTY_RATIO > /proc/sys/vm/dirty_ratio - -# Allowed dirty background ratio, in percent. -# Once DIRTY_RATIO has been exceeded, the kernel will wake pdflush -# which will then reduce the amount of dirty memory to -# dirty_background_ratio. Set this nice and low, so once some -# writeout has commenced, we do a lot of it. -echo $DIRTY_BACKGROUND_RATIO > /proc/sys/vm/dirty_background_ratio |