Originally Posted by coredumb

vi_, i only have a little knowledge on dbus. after doing some obvservation, i found that dbus-scripts only grep 4 argument when the device going standby, which is sender, destination, interface (com.nokia.mce.signal), and member (system_inactivity_ind). but i couldn't find the way to get the status of system_inactivity_ind, the 'true/false' value.

so, to let my script know what is the current status of system_inactivity_ind, i use a file as indicator.
if the indicator file exist, then the device is in standby mode, and vice versa.

this is my script:

Code:

#!/bin/bash

INACTIVE_IND=inactive.indicator

if [ -e $INACTIVE_IND ] ; then
  echo 100 > /proc/sys/vm/vfs_cache_pressure
  rm $INACTIVE_IND
else
  echo 10 > /proc/sys/vm/vfs_cache_pressure
  touch $INACTIVE_IND
fi

the problem is, the script couldn't know the current state when the device is rebooted/restarted

do you have any advice, how to get the system_inactivity_ind boolean value using bash script?

Originally Posted by coredumb

update on my script, on automatically change the value of vfs_cache_pressure based on system_inactivity_ind status

Code:

#!/bin/bash

DBUS_SEND=/usr/bin/dbus-send
AWK=/usr/bin/awk

INACTIVE=$($DBUS_SEND --system --type=method_call --dest=com.nokia.mce --print-reply=literal /com/nokia/mce/request com.nokia.mce.request.get_inactivity_status | $AWK '{ print $2 }')

if [ "$INACTIVE" == "false" ] ; then
  echo 100 > /proc/sys/vm/vfs_cache_pressure
else
  echo 10 > /proc/sys/vm/vfs_cache_pressure
fi

Originally Posted by karam

guys after testing the dbus-script
i had a better battery life
standby : 4 days (max)
continues usage : if depends on the kind if usage
ex : webos games (sounds video touchscreen keyboard)
will last for about 4 - 5 hours (max)

ex : IM programs like pidgin and others
will last on continues usage about 9 - 12 hours

other tiny programs will last about 15 hours of continues usage of them



i think this is a great result
an iphone can't have like that one

but be aware i that i have every auto update program is disabled
wifi search interval is disabled too

i will post instructions and how to soon when i have a free time

PS: I HAVE NOTICED SOME THING
when i use N900 heavy usage the battery drains about 2 - 4 % each 10 minutes

but when i leave it standby about 15 minutes the battery value increases
ex : from 40% to 50% sometimes 55%

i think if is predicting feature of N900
it calculates the remaining time of heavy and standby usage (just maybe)

Originally Posted by vi_

I don't really understand your question. The dbus-scripts rule provided earlier ONLY matches to system inactive. I know it works because I have tested it relentlessly.

Where did you read dbus-scripts only matches 4 'arguments'?

Originally Posted by vi_

WTF? o0 are you out of your god-dammed mind?

You use dbus-scripts in order to avoid polling things. i.e. dbus-scripts waits for somthing, then runs a script.

You don't poll dbus to get the current state of something in order to run a script.


This rule WILL run the script '/opt/scripts/some_script.sh' when the system inactivity signal is on dbus.

Code:

/opt/scripts/some_script.sh * * com.nokia.mce.signal system_inactivity_ind