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planetf1 is offline planetf1
2010-02-13 , 08:57
Posts: 277 | Thanked: 46 times | Joined on Jan 2010
#1
Has anyone looked closely at power consumption and IM?
Taken any network traces to figure out when traffic is tx/rx?

My experience with my N900 so far is that I can stay online on multiple services (skype, sip, gtalk, facebook) for a working day at the office over wifi with some web browsing during the day

However last night the same setup got me to ~5-% battery 7-11pm last night, which is a little worse with little other usage

A few thoughts
* Using 2/3G, if I maintain 4 independent connections to different IM servers each could wakeup at different times
* Each wakeup could cause 3G radio to stay on for a few seconds
* As their unsynchronized power drain could be high
* If there was a way to synchronize usage would be less (alternatives - use single IM, or proxy them via say a XMPP server)

Would be great to trace when the gsm radio is active, and figure out what the most effective changes would be.
 
planetf1 is offline planetf1
2010-02-13 , 09:07
Posts: 277 | Thanked: 46 times | Joined on Jan 2010
#2
This is interesting
http://www.deepdarc.com/2008/02/14/mobile-xmpp/

Anyone know if the gtalk plugin on maemo uses google binary method?

Maybe worth trying a more controlled experiment one protocol at a time.
 

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planetf1 is offline planetf1
2010-02-13 , 09:14
Posts: 277 | Thanked: 46 times | Joined on Jan 2010
#3
Another interesting link
http://www.olympum.com/imps/making-x...e-environment/
 
juahan is offline juahan
2011-01-14 , 15:51
Posts: 59 | Thanked: 21 times | Joined on Sep 2007 @ Espoo, Finland
#4
I was just today thinking of almost same thing.

I would like to know, which IM-system is least power hungry. MSN, Skype or gTalk. Or other?
 
quipper8 is offline quipper8
2011-01-14 , 16:01
Posts: 1,096 | Thanked: 760 times | Joined on Dec 2008
#5
I think jabber is the least power hungry, but I don't have any stats to back it up

I use most all my other accounts through a jabber account that has transports to msn, etc

the only one with no transport is skype, at least that i know of, but I use skype for calls too, so I keep that on anyway
 
bobbydoedoe is offline bobbydoedoe
2011-01-14 , 16:02
Posts: 140 | Thanked: 40 times | Joined on Sep 2010
#6
check out jabber. way less talking to the im server than gtalk. so less wake ups.
 
mahmood13 is offline mahmood13
2011-01-14 , 20:29
Posts: 6 | Thanked: 13 times | Joined on Jan 2010
#7
Originally Posted by quipper8 View Post
I think jabber is the least power hungry, but I don't have any stats to back it up

I use most all my other accounts through a jabber account that has transports to msn, etc

the only one with no transport is skype, at least that i know of, but I use skype for calls too, so I keep that on anyway
Any suggestion on how to link MSN contacts with the Jabber account ?
 
quipper8 is offline quipper8
2011-01-14 , 20:36
Posts: 1,096 | Thanked: 760 times | Joined on Dec 2008
#8
get a jabber account on some server that offers an msn transport, there are many.

use a jabber client like Psi that supports service discovery and register your msn on the transport

your msn people now show in your jabber account on n900
 

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Creamy Goodness is offline Creamy Goodness
2011-01-14 , 23:59
Posts: 1,463 | Thanked: 1,916 times | Joined on Feb 2008 @ Edmonton, AB
#9
Originally Posted by bobbydoedoe View Post
check out jabber. way less talking to the im server than gtalk. so less wake ups.
gtalk uses jabber/xmpp, so that makes about zero sense...
 

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theonelaw is offline theonelaw
2011-01-15 , 05:03
Posts: 671 | Thanked: 1,630 times | Joined on Aug 2010
#10
Originally Posted by Creamy Goodness View Post
gtalk uses jabber/xmpp, so that makes about zero sense...
We have two corporate xmpp servers running in our company
and I have more trouble with those things dropping connections
than the yahoo (all using pidgin) and I observe that the amount
of effort to maintain an xmpp connection probably does drag the
battery but it is noticeable but not by very much.

never used gtalk so I cannot comment on that aspect.

HTH
__________________
Three n900s: One for stable working platform,
One for development testing Chopping Onions
One for saltwater immersion power testing resurrected ! parts scavenging

My Mods for Wonko's Advanced Clock Plugin:
ISO8601 clock mod and Momental_IST clock mod

Printing your Email with the N900
 
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