On Thu, Mar 26, 2015 at 5:34 AM, Heroldich Robin <[email protected]> wrote: > Hi all! > > First I would like to say thanks you to everyone who involved this project, > it is wonderful. :) > My bq phone arrived yesterday, and it is fantastic, I really like it. But > the battery life is terrible. I poweroff everything (GPS, location, wifi, > mobiledata, bluetooth) when I was going to sleep last night. The battery was > full (100%), and now 8 hours later it is 76%. So the battery discharged 24% > in 8 hours without any interaction. Is it 3% per hour. Is it "normal"? So If > I don't do anything with my phone, just leave it alone on my desk, it'll > only work for about 33 hours? It isn't good. My Android phone with similar > parameters can operate for about 3 days without interactions.
Alright, after a few more tests I noticed that the push-client interferes quite a lot with the battery consumption when you enable flight mode. Here are my results (all in idle): 1 - Radio enabled, connected via wifi, push-client enabled (default): consuming around 4% per hour 2 - Flight mode with push-client enabled (default): consuming around 3% per hour 3 - Flight mode with push-client disabled: 0.5% per hour (and noticed it really went into deep sleep for hours) I had a script dumping the % and voltage at every 30 seconds, but this is what I got: 26/03/2015 19:54:00 90 - 4239000 26/03/2015 22:32:31 90 - 4214000 And the result at 22:32 only shows up as I resumed the phone by pressing power (no more data between both because the phone was in deep sleep). What ubuntu-push-client is doing is forcing a hardware alarm at every 5 minutes, and then checking if there is any new notification from the services you have enabled in your device (from accounts in system-settings). Having push-client enabled when enabling flight-mode is clearly an issue (https://bugs.launchpad.net/ubuntu/+source/ubuntu-push/+bug/1437135), but there are also ways to optimize it to avoid holding the suspend when doing the polling (https://bugs.launchpad.net/bugs/1435109). If you want to manually disable push-client, and run similar tests, just run '$ stop ubuntu-push-client' from your terminal. Cheers, -- Ricardo Salveti de Araujo -- Mailing list: https://launchpad.net/~ubuntu-phone Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-phone More help : https://help.launchpad.net/ListHelp
