yashsingh1/xdaforums huggingface dataset:
[Galaxy S II General] walda:
I wanted to refreeze, but saw that its still freezed, so no.
[Galaxy S II General] BoostedSR20:
This is at 81% battery. I'm BAFFLED.
[Galaxy S II General] slyydrr:
If you click Android OS, what's the CPU time that's been used?
[Galaxy S II General] BoostedSR20:
16 minutes.
[Galaxy S II General] FPRobber:
I'm getting really horrible battery life:

(how can I thumbnail them?)

That looks even worse than what you guys are describing. For some reason it keeps waking up even though the screen is turned off.
[Galaxy S II General] walda:
For guys which have more severe problems than other ones with extremly draining i recommend "System Panel Pro".

There you see which App/Process uses how many CPU% while idle.
[Galaxy S II General] slyydrr:
Yeah see, even though that's not terrible, that's still higher than 2.3.3 on my Nexus One was. With my N1, it was on for 6 hours with the SIM card in, and has been sitting on my bookcase for 72 hours now (since I got my SGS2) and only has 2 minutes of Android OS usage.

I think there's some process that's waking up the device, which is causing the higher Android OS usage.
[Galaxy S II General] kumarshah:
Maybe I am not understanding, but at 5 h you only lost 19%, thats good?
[Galaxy S II General] tonynz:
What's the difference between Android OS and Android System?

To be honest, I'm very happy with my battery life despite the high Android OS usage.

At the moment, 5 hours and 16 minutes on battery with 77% left. Should be able to get 24 hours easily with moderate usage. (Still not updated my firmware yet and still a 5 day old battery so still have some conditioning to go)

Wifi Off, 3G on.

I have Exchange ActiveSync push, Gmail push, Facebook, Twitter, Tweetdeck, BW Weather/Time widgets running.

Android OS at 36% - 32mins CPU Total

Display at 22% - Very low brightness setting

Android System at 14%

Maps at 11%

Cell Standby at 6%

Voice calls at 5%

Phone idle at 4%

Email at 2%
[Galaxy S II General] BoostedSR20:
That's absolutely awesome, but for the past few days I've only been getting 8-9hrs TOTAL. Today its much better. Didn't change a thing. Hence being baffled.
[Galaxy S II General] slyydrr:
I bought the paid version of this in hopes of being able to determine the culprit of CPU usage. I'll monitor for a few hours and let you all know if I find anything.
[Galaxy S II General] BarryH_GEG:
Update or Pre-Update?

Since everyone's waiting to see if the latest update addresses the OS/battery drain issues, it would be helpful if you mention which ROM version you're running when quoting stats. Truthfully, is there even a need to discuss the drain on the shipping ROM since everyone will be on the new ROM shortly?
[Galaxy S II General] vimto25:
i still dont understand why after updating my phone didnt go to stock factory settings....
[Galaxy S II General] slyydrr:
It has been present in all 4 ROM's I've tested so far: XWKDD, XEKBB, XWKDF, XEKE1. The latest one is XWKE1 (UK), of which I believe the only difference is the localization support. It would seem that the more important characters in the firmwares are the last 3 (KE1).
[Galaxy S II General] BarryH_GEG:
This may be crazy, but has any one downloaded the camera app update to see if it has any effect on battery drain? It appears to be a "drivers only" update since no one found any functional changes. Who knows, maybe the camera is/was doing strange things in the background. With all these bigger issues it's odd that they would make the camera a priority.
[Galaxy S II General] Chrisch-RT:
@ BarryH_GEG

not every one has the update for the camera because there different firmwares.

in the german android forum are 2 different firmwares for it..

1. Cam FW Ver: TBEC28 (no update available)

2. Cam FW Ver: OCED10 (updated to OCED11)
[Galaxy S II General] FPRobber:
How can I check the cam FW? Also, I thought it wasn't out in Germany yet?

I have extreme drainage (not even a day of medium usage; battery screenshots on previous page) and I'm running:

PDA: I9100XWKDD

PHONE: I9100XXKDH

CSC: I9100OXXKDC
[Galaxy S II General] BoostedSR20:
I'm on KDD also.
[Galaxy S II General] Burko:
Here is todays usage. I'm totally stock by the way, with software update force closed and cache cleared. When I disabled the software updates, you can see the drain slows down a lot, the line is almost horizontal.
[Galaxy S II General] beppez82:
KDD or last update KE1?
[Galaxy S II General] Burko:
KDD

Burko
[Galaxy S II General] Bart1981:
My battery drain is about the saim as Burko but my Android OS/system usage is around 25%.

I'm on KE1
[Galaxy S II General] beppez82:
So these "bug" is still unresolved wow...
[Galaxy S II General] jonrwg:
After updating to the current KE1 firmware, my android os drop drastically. From 35% to 4%. Highest so far I've seen 10% (download lots of apps and to restore my phone back) So i guess this latest firmware solve this "bug" issue, well at least for me.
[Galaxy S II General] beppez82:
Did u leaved the phone i idle?cos mine rise only when it is in idle and drink my battery leterrally, and for me is popped today drastically (btw waiting full charge to upgrade and test)
[Galaxy S II General] jonrwg:
When idle my % drop but when I'm playing with the phone for quite some time it went up slowly. One thing always pop up is my watchdog surely will alert me about suspend & event/0 exceed the % threshold I setup at 30%. Still need more test. Going to drain my battery till zero and charge until full to see it improve or not. :)
[Galaxy S II General] DocRambone:
Tried all combonations of kernels, roms and modems, all has this bug.

Process: system server, PID 2720
[Galaxy S II General] earthdome:
hmm.not sure if the update have any impact on my battery. but at least i have received CPU threshold alert only once. suspend and events/o always exceed 50% CPU usage before updating. and it can't be worst than below. and that happened during my sleep n i have nothing syncing in the background
[Galaxy S II General] jonrwg:
Agree with you. Only happen when phone in idle / sleep. Weird but the new updated firmware so far only gave me 1 alert when there is an incoming email / facebook notification.

Wow, your suspend and event/0 use 99.9%? :eek:

Edit: Just noticed mine 99.9% too. LOL.
[Galaxy S II General] vimto25:
yup i agree i think its much better
[Galaxy S II General] beppez82:
How much was ur battery drain overnight in %? and in how many hours?
[Galaxy S II General] slyydrr:
Can you keep an eye on it over the next couple days and let us know how it looks after some time? Mine was low after a fresh firmware flash of XEKE1 (essentially the same as XWKE1), but has since gone back up.
[Galaxy S II General] Aweb:
Not fixed by XEKE1, my Android OS process is eating 36% of the battery! Arg!
[Galaxy S II General] BoostedSR20:
Update from this morning, battery at 32% now.
[Galaxy S II General] beppez82:
And basically what u have done today to semifix it? Removed battery etc or just nothing?
[Galaxy S II General] BoostedSR20:
Last night rebooted, then charged. Then this morning froze software updater and rebooted. (posted about it earlier) Android OS has been low all day, freezing the updater hasn't made much change.

This is the best battery life I've seen since I've owned the phone by a mile. No idea what changed it today.
[Galaxy S II General] tameracingdriver:
Well I've just done latest firmware, and so far... seems better... but then... it was OK to begin with, only after a few days did these problems rear their ugly head. So only after a few days can we know if the problem are sorted... but I honestly think they wont be... but I hope I am wrong...

Still dont know whether to send this phone back for a refund and go back to my Incredible S, I have to decide tonight or it'll be too late. Love the phone, but I don't really wish to go back to flashing ROMs or patches every few days.
[Galaxy S II General] BoostedSR20:
Wanted to flash the new firmware, but now I'm hesitant.

There was a good 15 minute time today where I was using PhoneMyPC...
[Galaxy S II General] DocRambone:
This HUGE bug is really depressing, nothing seems to help.

Samsung made a sloppy job...
[Galaxy S II General] simonk83:
KE1 doesn't fix it. Mines at 43% after upgrading.
[Galaxy S II General] tameracingdriver:
Well mine has been OK.. but I've read enough on here to believe it hasn't fixed it. What a thoroughly depressing bug. Even the original SGS lag and GPS problems were preferable to this bug. :(
[Galaxy S II General] BoostedSR20:
Just flashed the new firmware, and re-rooted. (no wipe) I'm going to charge it up to 50% then take it off and see what happens. All day OS has been around 8%, and it crept back to 11% right before reflashing. I'll see where it goes from here.
[Galaxy S II General] Bart1981:
Did you guys try this?:

source
[Galaxy S II General] Leggenda:
You have a Samsung Account?
[Galaxy S II General] beppez82:
Done except the wssync don't help that much rly btw tomorrow i root the xke and try with it also....
[Galaxy S II General] BoostedSR20:
What do you mean? (gonna probably go with no)
[Galaxy S II General] Leggenda:
Sorry for my bad english...

So, Samsung Account seems to be a first guilty for the Battery drain...

I'm curious to know if in "account and syncs" you also have the Samsung account...
[Galaxy S II General] BoostedSR20:
No I don't, and I froze Samsung account.
[Galaxy S II General] eitama:
Just a reminder for all you guys looking at percentages,

If you wanna wipe them :

adb shell
su
rm /data/system/batterystats.bin

reboot or just refresh the battery usage thingy.
[Galaxy S II General] Leggenda:
Did you froze other processes?
[Galaxy S II General] rocketpaul:
Am i the only one having good battery life, my android os has never gone past 18%.
[Galaxy S II General] BoostedSR20:
Yes, talked about it in the thread. Would have to go back and look again at all of them, but some of the main ones are: both wifi ones, software updater, Samsung account, all the hubs, etc.
[Galaxy S II General] BoostedSR20:
Been an hour since my reflash, OS is hanging at 14%.
[Galaxy S II General] NoOneCanHelpMe:
This is my battery usage after KE1 update, huge difference!

60% left, but im not using wifi or 3g at the.moment, last night i had my phone in a similar set up but battery died prety soon. I'll do more tests tomorrow but it is definitely better. :)
[Galaxy S II General] Bart1981:
Just remove the batterystats.bin?

A new one will be created after a reboot?
[Galaxy S II General] eitama:
Yes, for sure after boot, and maybe even instantly without rebooting.

It's the method that was used before CWM automated this in recovery.
[Galaxy S II General] NIK516:
Guys just updated my firmware and the problem is gone, i suggest you all do the same.

P.S i updated through odin because kies does not recognize the old firmware so just use odin, you dont need to root just follow the steps very easy.

http://xdaforums.com/showthread.php?t=1076243

hope it helps :)
[Galaxy S II General] BoostedSR20:
Since flashing the new firmware my OS has crept from 11% to 23%. BUT my battery is draining *super* slowly. I'll know more tomorrow when I start from a fresh charge.
[Galaxy S II General] slyydrr:
I had done the same (granted I used XEKE1, but I can't imagine there's a difference...) and it seemed fine at first, only to reappear the next day. I'd be curious to hear your results 1-2 days from now.

EDIT:

All of you that are trying the new firmware - are you freezing any apps? This could be potentially important so I'm curious.
[Galaxy S II General] BoostedSR20:
I didn't wipe so everything is setup the exact same way as before.
[Galaxy S II General] slyydrr:
Which was? :) I can't remember and I can't find your post. Curious if you had some apps frozen.
[Galaxy S II General] NIK516:
ill let you know in two days time, and i cant freeze apps i have not done root on my phone just updated using odin.

Right now my os is at 7-12% from 90% so im pretty happy.
[Galaxy S II General] simonk83:
Well I must admit, I haven't had any Watchdog alerts since upgrading. OS is still at around 17-20%, which is high, but not as bad as it was.

Will be keeping a close eye on it.
[Galaxy S II General] simonk83:
Crap, I knew I should have kept my mouth shut. Watchdog just caught suspend using 50%.

Definitely not fixed.
[Galaxy S II General] beppez82:
Nope lol same for me XD, btw new firmware ke2 trough Kies cross finger :D Flashing now!!!

*EDIT*

Also with KE2 same problem...still unsolved for me
[Galaxy S II General] simonk83:
Yep, KE2. Hopefully this one helps :)
[Galaxy S II General] DocRambone:
Promising :)
[Galaxy S II General] Dreadsteel:
Don't want to speak too soon but so far the os is behind the display in power consumption.

Using ke2 firm ware
[Galaxy S II General] beppez82:
If u live the phone on it stay under display with phone off it go up by a fair amount:D

BTW these is what do into mine SGS2 :(
[Galaxy S II General] DocRambone:
Still running good, best i ever had so far on the sgs 2

Removed some junk and still ok.

Android os on 5 min 20 s
[Galaxy S II General] Bart1981:
In dutch there is a typical translation....

Android OS is translated by Android System, and Android system still is..... Android System...

After some things I did yesterday (freeze softwareupdater, etc) I now have a value of 35% and one of 2%...

35% is still a bit high compared to some others here, but 2% is a lot better.
[Galaxy S II General] RaspyYeti:
Is it possible that Android OS is linked to use of phones camera.
[Galaxy S II General] sim_jim:
i dont think so ..
[Galaxy S II General] Tulips:
I think the problem is com.sec.android.app.FileTransferServer it uses 100% CPU :eek:
[Galaxy S II General] Leggenda:
This bug has been fixed by XWKE fw...
[Galaxy S II General] Tulips:
I still have the bug in KWKE1
[Galaxy S II General] DocRambone:
Hmm, drain started again with the latest FW....
[Galaxy S II General] beppez82:
Yes but Leggenda these nite with ke1 no root leaved the phone in idle with wifi on and got only 5% drop battery in 6h android os 54% so maybe is only a visual bug...because is impossible that someone have it and someone not i don't think it can be hardware related ofc...btw will be nice from Samsung to release a kind of changelog in evry release lol...i understand we are just beta tester for the next markets official launch lol
[Galaxy S II General] Tulips:
KWKE2?

10 characters......
[Galaxy S II General] dan13l:
Today's progress report:

Took the phone off charge at 9am.

Checked up on Twitter, email, did some browsing, watched a YouTube video. Carried on with my day. Must have spent 25-30 minutes max using it.

Not really heavy use I'll admit. This was all on Wifi.

Phone is now at 86% battery, after 2 1/2 hours.

Android OS is at 73%, display is at 19%.

So in the 150 minutes my phone has been in use, the battery has dropped 14% (let's call it 15% = 1% every ten minutes).

Android OS says CPU Total 1h 15m 21s. So that's 50% of the time the phone has been off charge! This is on KE1 firmware. About to try the KE2 update to see if that helps.
[Galaxy S II General] leoking3:
KE2 helps!!!! Do that update! It is now actually charging itself.:)) I am not kidding, it went up from 66% to 68 % and remained there since 2 hour ago. Now Android OS only uses 10%, NOT 96% as before. Battery is absolutely satisfying now. I was about to sell my phone due tot that, but NOT anymore.! :) GO FOR IT!
[Galaxy S II General] artesea:
This is the key stat. CPU time should be in the minutes (my Nexus one is currently at 1m 1s, phone on for 5.5 hrs). As others have said "% of battery used by application" is comparing it to the rest of the phone, so if nothing else has been used it will be high.

If you've got Spare Parts you can see what's been using the CPU in Battery History.
[Galaxy S II General] Leggenda:
sorry, but if the display was ON for about 30 minutes, your consumption is perfectly normal!
[Galaxy S II General] dan13l:
Oh I agree, I do think some complaints are bordering on the "I use my screen and my battery drops, WTF LOL ROFLCOPTER" side of things. If I use the screen, I expect battery to drop.

What concerns me is the exaggerated Android OS consumption - > 1hr seems a lot more than my Nexus S used. I'm certainly not in the "sending it back, battery suxors" camp just yet (weirdly I've had days where my use hasn't changed dramatically, yet battery has been incredible) I'm just trying to contribute and get to the bottom of what's causing this.

@artesea - I've got Spare Parts on, I'll have a look at that, cheers.
[Galaxy S II General] Bart1981:
Tody I started at 2% but now it's slowly going up to 17% (one phonecall, further standby...) (with the newest update)
[Galaxy S II General] Leggenda:
In my opinion, your post (and your phone usage) is the demonstration that despite a high consumption of Android OS, battery life was absolutely perfect... So, i think that Android OS isnt' very determinant...
[Galaxy S II General] dan13l:
And so it goes on:

I've barely used the phone since my last post, it was briefly hooked up to USB to update from KE1 to KE2.

Android OS now accounts for 78% of total battery drain, using 2hr 41m 52s.

Display is now at 53m, 14% use.

Spare Parts FCs if I try to look at Battery History. Not sure if I need to reroot to get that to work though.

This is actually far worse than it's ever been - but it occurs to me that yesterday I both registered a samsung account (foolishly checking of OTA updates, should have just used Odin). I've also got watchdog on now, which probably doesn't help. Tempted to reset it and start from scratch to see if this continues.
[Galaxy S II General] Leggenda:
How much battery uou have remaining?
[Galaxy S II General] BoostedSR20:
So far today on the new firmware. Battery @ 90%.
[Galaxy S II General] dan13l:
I was down to 73%. So it dropped another 13% in three hours with virtually no use, nothing polling for updates.
[Galaxy S II General] slyydrr:
I couldn't agree more, and this is what I've been trying to emphasize as well. I mentioned in an earlier post that after 6 hours of usage and then 72 hours of standby (without the SIM card as it's now in my SGS2), the total Android OS usage on my nexus one was 2% with a total CPU usage of just over 2 minutes.

From what people have been mentioning regarding the suspend process triggering alerts in watch dog, it'd seem something with this process specifically is buggy. I'm not sure if anyone else has noticed, but the CPU usage of Android OS actually seems to be normal when the screen. The issue only seems to rear its ugly head when the screen is off and the phone is diving into standby.
[Galaxy S II General] EmilianM:
do we have any good solution for this possible problem with "Android OS" ?
[Galaxy S II General] lynx2k50:
Also have this annoying bug.

Using KE2, restartet the phone, put the battery out and in again but also got android OS @ 60%.

Battery life is really worse :(((
[Galaxy S II General] gmatharu12:
Agreed, I have seen the same thing. If you are using the device, yes your Display is on and eating battery, but you can see the CPU time of Android OS doesn't move that much compared to CPU time increasing when the screen is off.
[Galaxy S II General] domazdk:
You guys have the touchwiz facebook or twitter active under accounts?

I don't have and my Android-OS is 30% tops.

Right now battery level is at 42% after 12h 20m 5s of active use.
[Galaxy S II General] yhrn:
I'm having this issue in KE2. Down to 57% in 8 hours of very light usage but with WiFi, background data/sync. Android OS eating 70% of that (3h 11m CPU time!)

Not sure what touchwiz facebook is (if it's the social hub thing then, no) but I have the standard facebook app installed and syncing contacts with that + notifications. No twitter. I don't think that is the real issue though and 30 % for Android OS sounds like too much and 42% after 12h sounds pretty bad anyway (with light use of course).
[Galaxy S II General] Leggenda:
How much hours display?
[Galaxy S II General] slyydrr:
I think the really important thing to note (for everyone, not just you) is that everyone's Android OS consumption is going to be extremely relative. For me, my Android OS % is higher, but that's because I'm a light user. Even with my Android OS usage being high, I can still get 2 days on my phone currently, simply because my overall screen on time is 1-2 hours total per day (10-30 texts, 10-20 minutes of phone calls, and 10-20 minutes of WordFeud plus other miscellaneous things).

The value that everyone should be looking at and using as a basis of comparison is the actual CPU time consumed by Android OS. This number is where the problem can clearly be seen, the relativity of percentages can be pushed aside for the most part.
[Galaxy S II General] sim_jim:
after upgrading to KE2 i get this ...
[Galaxy S II General] sogo87:
Did the last update fixed/increased battery life?
[Galaxy S II General] dan13l:
That's pretty meaningless without times - how long was the screen on, how long were you using the phone for calls, etc.

We can't just be posting pictures, it's not enough data.

For example, 9 hours on battery, if the screen has been on for 4 hours, is actually pretty good.

It's the fact that it's all relative that we need to remember.
[Galaxy S II General] slyydrr:
Exactly. People, please - all your screenshots and data are relative without actual times. We need screen on times and CPU time as well (not just the display % and Android OS %).
[Galaxy S II General] DocRambone:
Idle drain in 3-10%/h range due to "android os" is proof enough...
[Galaxy S II General] sim_jim:
screen display : 3:30

voice calls : 50 mints

android OS : 40 mints

android system : cpu total : 20 mints

9h 37m

16% left
[Galaxy S II General] slyydrr:
Not really. Android OS is the all-encompassing bucket for Application CPU use. If your phone is idle, yet you have 1 or more rogue process running and consuming CPU time in the background with the screen off, it's going to skew your idle drain.

This can easily be shown by the number of people with 1-2% battery drain at idle even with a high Android OS usage, and I have screenshots from a battery monitoring program (graphs, etc) to prove it if you're really interested in seeing it. I have 40-50% Android OS drain regularly, yet right now my phone has been off the charger for 6.5 hours and I'm at 86% battery with 45 minutes of screen-on time and 42% Android OS (38m 20s CPU total).
[Galaxy S II General] Leggenda:
Sorry for my bad english...

I know I'm semi off-topic, but I can tell you that with today's fw (KE2) sharing WIFI bug was not resolved.
[Galaxy S II General] Arthur Hucksake:
Well, here are my current stats including CPU time.

4h 1m total.

Display 27% - Time on 28m

Android OS 22% - CPU time 22m

Voice Calls 15% - Time on 6m

Android system 14% - CPU Total 1m 28s , CPU foreground 1m 28s

Cell standby 14% - Time on 4h 1m

Phone idle 5% - Time on 3h 33m

What do you make of that?

Battery stats reset this morning after updating firmware.
[Galaxy S II General] slyydrr:
What's your current battery at? For normal drain, I'd guess at somewhere in the low 90's to high 80's (obviously pending decent reception...)
[Galaxy S II General] Arthur Hucksake:
It's currently at 81% but I don't think it was 100% when I did the firmware update (reset battery stats), so it's hopefully all relative?

My reception is pretty bad too inside the house.
[Galaxy S II General] BoostedSR20:
I would have to say my battery/android OS problems are gone. I'm getting phenomenal battery life today. Battery is at 63% with fair usage. Before my battery would have been dead by now or very close.
[Galaxy S II General] slyydrr:
Can you do me a favor and please post another screenshot of the actual graph (the one that shows bars for signal, awake, wifi and screen on)?

I think it was in this thread that I posted my theory regarding the issue only occurring when the phone is attempting to go into suspend mode. Your screenshot shows a solid blue bar so it looks as though your phone is never going to sleep. The details graph screenshot will show more details, and if your phone is actually always awake, you wouldn't experience the bug.