yashsingh1/xdaforums huggingface dataset:
[Galaxy S I9000 General] miztahbeezy:
Funny thing is that I flashed JVP right after it leaked and saw reports of the battery bug being fixed. I did not have any problem, in fact battery life was better than ever. This morning it was rather strange, I noticed my battery discharging really badly, went to the battery info and right now android system is at 21% and I'm at 82% percent after 45 minutea of usage. That being said, I do not use any data unnecesarily, no BT, no WIFI, even switched off 3G in favor of GSM. I reinstalled my apps manually after flashing. I'm really disappointed right now. Also, I'm on speedmod t8
[Galaxy S I9000 General] jbdroid:
Maybe we should separate reports for each 2.3.4 kernel used or we should strictly include the following info so that we can see which rom/kernel/rom setup has this problem:

Example:
[Galaxy S I9000 General] kikan:
on Doc's JPM_SuperSlimDocMod ROM, long time ago.....

my battery life was 3 days long, wifi on 24h/day ...

Now, same apps same usage same same, only one day (18/24hr) sometimes 34 - depend if buttery drain bug is on or of...:)

2.3.4 on speedmod K15H

wifi on 24/h

by

kikan
[Galaxy S I9000 General] gabryeludrea:
It seems we have another culprit, and that is Android System. I didn't saw many complaints regarding this before 2.3.4. I myself experienced very big consumption (15-25%) a few times when applying minimal usage to the phone, and a normal consumption (6-10%) when using my phone more intensively. As electrotune1200 stated this may be a normal behavior when you are not really using the phone, because you don't have other consumers beside Phone Idle and Cell Standby.

Android System contains many system processes, most of them from Samsung and only a few are made by Google. So, basically, if you are using Samsung or Google related services (Samsung widgets with or without internet sync, Social Hub - Facebook Sync, Twitter Sync, Email Sync, or other type of Samsung stuff, Google widgets, Gmail, Maps - Location service, etc) you will indeed get a higher consumption. Many of those services start automatically and if you don't use some of them you can disable them using various autostart controlling apps or using Titanium to freeze them. Another suggestion would be switching to a lite ROM, because they have removed a lot of system apps related to those annoying services.

The battery will heat up not only because of those kind of bugs. There are other causes that will make that happen. Playing 3D games will heat up the CPU and GPU so the whole phone will become hot. Also, data services like WiFi, HSDPA or even 3G are known for rising the temperature on the back of the phone. So keep in mind those factors too.

From the posts related to Android OS I didn't saw that crazy consumption anymore (40-80%) so I want to believe that we have an improvement regarding this problem.

Also the ball is not only in Google's yard anymore because we also have high consumption because of Samsung's related services but I guess this is something we can live with. But it wouldn't be wrong for Samsung to do something with this.
[Galaxy S I9000 General] gabryeludrea:
A clean install followed by a factory reset is always a good start and it can protect you from a lot of problems. It is also a cure fore some of them.
[Galaxy S I9000 General] gabryeludrea:
It is indeed a big consumption but I guess is something you can live with. At least it's not the top consumer anymore.
[Galaxy S I9000 General] gabryeludrea:
You can read my post regarding Android System. You can also try other kernel if you want. For example DarkCore 2.7.3 it's my recomandation.
[Galaxy S I9000 General] $omator:
first of all try stock kernel

i can asure you there is no drain on stock - everything works perfect

then slowly add apps and watch for drain

after that if nothing happens try dif kernels and watch for drain
[Galaxy S I9000 General] yalouf:
I switched to 2.3.4 yesterday, i'll post my values here...
[Galaxy S I9000 General] gabryeludrea:
We are waiting for you!;)
[Galaxy S I9000 General] santope:
No need to watch.

If you go out for lunch and in a couple of hours your battery is gone, you will notice.
[Galaxy S I9000 General] GMH24:
I posted this night that after playing Angry Birds Rio the Android os went up to 25 %

Instead of rebooting (as I usually do when android os hits over 10 % ) I just put the phone aside and went to sleep.

During breakfast I checked my battery graph and noticed that the drain stopped in the middle of the night as the graph was flat again...

Therefore my (definitely weird:D) question: can android os end its cpu usage when it is finished with whatever it is doing?! :confused:
[Galaxy S I9000 General] $omator:
more probably battery/system calibrated itself to a proper level

i sugegst you to continue testing, try to provoke the drain again
[Galaxy S I9000 General] miztahbeezy:
Right now I'm seeing Android OS and Cell standby jump up to 10%, 10% each, after setting the network mode to 2G (without data, wifi, bluetooth), if I put it back to 3G OS seems to go back to a 3%.

I think I'll go back to stock JVP kernel and see what's up with that, only if I could get my hands on it.

p.s.: your tiny GB mod package rocks!

p.p.s.: I've had problems with 2.3.3 DarkCore and Ext4, mainly that my apps started disappearing and I was unable to reinstall them permanently, they vanished on restart

p.p.p.s.: @gabryeludrea yes, I've read your post, however I do not use any automatic sync options or google widgets/samsung apps (excluding touchwiz4 - which I'm going to test for drainage in a few hours)
[Galaxy S I9000 General] privatrony:
WiFi policy?

Is it still necessary for 2.3.4. to set up WiFi sleep policy to "when display off"?
[Galaxy S I9000 General] $omator:
best option is to keep it of when unused
[Galaxy S I9000 General] gradash:
3 days on 2.3.4, no battery bug for now
[Galaxy S I9000 General] yalouf:
Today use.

I'm at 5 hours of screen usage when posting and 5% battery left.

Airplane mode with wifi on, last night.

Mostly wifi surfing and uploading(dropbox) and 20min gaming with the new "Lumines" game. 20min phone calls and some text messages.

No battery drain so far :)
[Galaxy S I9000 General] gabryeludrea:
Same as for me, welcome to the club!:p
[Galaxy S I9000 General] gabryeludrea:
Nice battery life you have there. Enjoy your phone and thanks for your feedback!
[Galaxy S I9000 General] goughymachine:
Here's my usage from this morning since unplugging it from it's charger at full. I am wondering about the cell reception - don't have great reception where I am and notice the phone signal indicator isn't the green colour I see most have. Wonder how much that affects my battery life?

Any ideas? Should be cf kernel, otherwise stock deodexed jvp. Should I be giving stock kernel a go? If I flash stock kernel do I keep root and superuser?
[Galaxy S I9000 General] Widdly:
What do you mean other culprit? I have had this bug on every GB rom I tried. It looked the same. Tried about 5 different Roms, several kernels.

Of course. Certainly if I don't use the phone the display will be low in consumption and others will appear higher. But I don't remember seeing that much before GB. Didn't have much reason to look. On the other hand, even with very light use, my battery is about done after 16 hrs. The graphic takes a sharp dive whenever I turn wifi on. Pretty certain it didn't do that before. Last week I had several times that Mobile Standby (Not Telephone Standby) was very high and saying it was without signal for a high % of the time. Cell signal is strong enough where I live.

There are two items of Android System. One contains a slew of process and behaves sensibly. The other simply says CPU-use and gets very heated every now and then. Which one are you speaking of? Aside from that, on the back of my Samsung it says "with Google". Android is made by Google. If the same problem pops up on different types and brands of phones and even tablets (and it certainly looks like it, though I did not research very deep, it might be coincidence) then it might be a problem the maker of the OS should address, not the maker of one specific phone. I'm not burdened with knowledge in any way, so this is all just logical conjecture.

I have not been on 2.3.4 long enough to judge. Maybe it is less. But the bug did happen. About the battery temp: 1: I have the phone in my trouser pocket so it gets pre-heated. However, not to 41deg C (body temp is 37, I'm not feverish) 2 that temp occured with the android system rising high and putting strain on the cpu whilst the phone was in my pocket. I was not playing games.

Definitely. I have a boatload of processes frozen in TB. Not all. I want some comfort in using this phone.

[letting off steam mode on:]

Still. This phone has already cost me WEEKS of time researching problems, causes and fixes, sifting through hundreds of pages of forae, trying fixes, flashing firmware upgrades to get rid of problems... I have a life. This is costing me a lot of it!!! I don't want to fish for answers, install apps to monitor what my phone is doing so I can make it through the day on a battery charge.

I should not need to go through all of this just to have my phone working properly.

I just had a flash back of the couple of times I tried to get linux to work on my laptop. Lovely OS. Just too many stuff didn't work right away and took way too much time to get it to work after a while. And some stuff, like my outboard firewire sound box still will not work and will never work because it is now considered legacy even though it's still working perfectly. On Windows.

I love Android. Hate the fuss with it. Just like linux.

[Steam mode closed]
[Galaxy S I9000 General] Soulbrighter:
I noticed earlier today that I had a huge drop when I had a calendar reminder. I'm happily running stock jvp with cf-root kernel. Battery life is good but I noticed that the phone was getting really hot in standby and judging from the graph I could tell that it started when a calendar notification popped up. After I dismissed it all went back to normal.

I'm using the stock email and calendar with activesync
[Galaxy S I9000 General] gabryeludrea:
Although Android OS seems high on consumption, I wouldn't say you have a battery drain there, judging by the fact you have WiFi on, bad cell reception, the display is the top consumer, and the battery consumption was approx. 15% in an hour.

I don't think the CF kernel could be a problem since is only a stock kernel with root and ext4 possibility, as far as I know.

If you are curious, try the stock kernel, the root capabilities will remain, but don't forget to remove the lagfix if you have it!

Thanks for your feedback and come back here if you have news!
[Galaxy S I9000 General] gabryeludrea:
Maybe I was wrong when I stated this but it seemed like everyone feared Android OS the most, without being bothered that much by Android System. Anyway, I don't know if we can call this a bug, maybe it's just a problem being caused by some faulty apks. We could know more about this by using a battery monitor (I know it doesn't sounds good for you, believe me, I don't like either) and see how those processes behave, and which of them is doing naughty things with the CPU. However, we have a Samsung phone and we know they like to put their mark on the products, so we get stock Android loaded with shiny Samsung interface, cool widgets, complex apps. Most of them are useful, good, we like to use them so we could accept that those things need battery. I guess the situation is better with a Nexus S.

The battery stats are much more complex on GB. Android System was not part of the list on Froyo. I could have 98% on Display and 2% on Cell Standby, when I was doing internet browsing mostly. My phone was off in max 6 hours only by doing this. With GB, especially 2.3.4 it can survive a lot more.

Maybe you should consider doing a battery recalibration. It always helped me.

I always had big consumption with WiFi. Setting the policy to turn it of when in standby helped, but not by much. I guess it's because of the drivers

If you have 3G or HSPDA enabled, and the signal it's not perfect, you could see higher consumption. It is strange though, my phone never lies regarding the signal availability.

I don't have heating problems. I am referring to all those processes that appear in that Android System list. But if you noticed that kind of behavior with some of them, please post the ones that are causing troubles.

Those problems are indeed present to all brands since the GB upgrade. But as far as I know, Android OS bug was common, not something else. When seeing such a big consumption on Samsung related stuff we could address to the maker too.

Android was always a good OS, the best in my opinion. But I guess they had damaged their reputation since this problem appeared. However Samsung is well known for being bad at software and brilliant with hardware making. I was aware of this and I accepted it. I would buy a HTC if I want good software.

I am tired of experimenting and tweaking too, I seemed to like it for a while, but a phone should be fully functional out of the box, and our SGS is far from that. Either we will be less picky, stop tinkering and start using it for real, find a good configuration, make a backup and stay with it either we could change it with a HTC or other phones that are known to be good without head aches.

When Samsung will release an official 2.3.4, that would be a good point to stop if it will be good enough. If not, Froyo was always a good alternative. On those times I knew I have a phone, I really enjoyed using it, now I feel like I own a useless piece of expensive hardware and I hope Google and Samsung will realize that many users are feeling the same thing.

It was nice to see feedback from you. I hope you can enjoy your phone more in the near future.

Cheers!
[Galaxy S I9000 General] redstar2k:
No problem for me on 2.3.4.

Batery drain is about 1% over 2-3h on standby. I have wifi turned on all the time and sync + other programs running that use data.
[Galaxy S I9000 General] anukilimanoor:
the same thing i tested in 2.2.1 and today is the second day battery level is 70%
[Galaxy S I9000 General] $omator:
and thats how it should also look with wifi sync on =)
[Galaxy S I9000 General] Widdly:
To be honest about the letting off steam part in my previous post, it's not just this one problem that bugged me. First it was the meager way the GPS performs. Sometimes I go running and and would love to keep track of mu runs with Runkeeper. Currently the gps frequently looses contact, at least goes of track regularly so does not give reliable results. Endlessly I've been searching for ways to improve it and believe me I tried them all. Except soldering antenna wire to the contact, which I read about. I am now resigned that the hardware prevents further improvement, curse Samsung for choosing an inferior gps receiver in such a fantastic phone and hope my next phone will be better. Then it was some way to be able to record rehearsals with my band (stock Android mic level is way to loud so it distorts and no way to turn it down, voodoosound turns it down).

And now it is Android System bug.

What's next? As soon as this bug is squashed I'm staying on that firmware no matter how much lockscreens others have. I don't care about lockscreens or completely green themed graphics. I just want a phone that performs reasonably well.
[Galaxy S I9000 General] $omator:
gps aint bad but could be much better - one in jvp is as far the best one samsung presented (and is exact same as was released earlier in jv9 in uk carrier firmware and in jv5 in asia if i recal good)

imho only better you can get using nexuss gps files but thats only my opinion - i use them and i like it - but thats my opinion

still GPS in i9000 as a total is a steamy piece of c#%6p - i had better accuracy and eons better tracking precision in my 5 year old nokia - but thats most probably not only board-antena connection problem but the chip itself as all other phone manufacturers using that chip faces same not-even-close-to-precise-gps problem

sorry for oftop - ofc i do not have andoid os bug and consider it as a unexperienced user - messed up system bug =)
[Galaxy S I9000 General] christian5916:
2.3.4 the best of all time so far!!!!!

well for I've been 5 days on it and last night it turn off by itself after 1d 9h 42m and 15s I wish that I could have taken a pic of it whit screenshot it but I was working, but this rom is the best ginger so far. :D
[Galaxy S I9000 General] Coolgreek:
Hi guys!

I am here to report that i just managed to get battery drain (through android os) appear (once again after 2.3.3) on my phone after 2 days of use on 2.3.4 JVP wih custom criskelo V71 rom installed!

I was playing the game "air attack hd", then surfed the web with dolphin browser hd for about 10 minutes then put it back on standby mode BUT it didn't go into standby as i observed 15 minutes later, instead the cpu was stuck at 800mhz (checked through cpu spy) and android os was up to 8% (instead of 4% before i put the phone into standby)!

So battery drain is still here, maybe not as much as 2.3.3 roms (had it a lot) but still, it's here:(...

Just to add: i installed stock deodexed (ramad) JVP rom twice with repartition, factory reset,wipe cache/dalvik cache and interanl sd format (all those twice i repeat) to make sure i had a clean system before!

PS: made this post on another forum as well but it was meant for here on the first place! so sorry if a double posted!
[Galaxy S I9000 General] Widdly:
On topic:

Indeed? I'm extremely curious! What experience should I need to keep my phone working optimally? How can I mess up a system if I just wiped, cleaned, reset and after all that flashed a new firmware? Is Titanium messing up the system? I fyou know what can prevent this phenomenon we can shut this whole show down now.

Please tell me I don't have to know C++ to operate my phone...

As far as users go I think I'm experienced above average. More experienced than I think I should need to be to operate a PHONE within reasonable parameters.
[Galaxy S I9000 General] Widdly:
Off topic (Sorry, I'm desperate)

GPS Files? Do you mean modem? Does it fit? Do you have a link?

The Galaxy S really is a FANTASTIC phone and I mean that! but the GPS is the turd on this cake. I really don't understand what they were thinking selecting this chip on this top of the line phone. This phone could mop the floor with any other if not for this turd (Dutch proverb).
[Galaxy S I9000 General] $omator:
i do not know but it must be something wrong with yours or we have two diff i9000 versions that i highly dubt =) also look at pool results - majority of people do not suffer from it

http://xdaforums.com/showthread.php?p=13924654#post13924654

here you will find gps files from jvo jv9(so they match jvp ones) and NEXUS ones

ive found all GB modemd provide same results for gps...
[Galaxy S I9000 General] vcosmin:
it's my 4'th day with jvp and i can say that it improves battery life, at least for me with up to 50%

until now, i had a up to 12 hours of battery life ( 3g always, wi-fi 50 precent of time, heavy user with 2 email accounts, hourly weather sync, music, games, gps, voice calls, etc) but now it last up to 20 hours on 3g and up to 2.5 days on 2g.

right now it has 15.5 hours and it is at 28 percent.

No android OS bug for me :)

i am pretty satisfied with it, it is fast, damn fast and it has a great battery life.

oh, yeah, i forget, i feezed maps and software updates, like usual, it's just a habbit but i always did with GB kernels so the readings are similar, 12 versus maby 24 hours between jvo and jvp.

and one more thing, clean install, then cf-root, convert to ext4 ( i think that kills some battery life) and then restore using titanium backup so it isn't the ideal condition for great battery life :D
[Galaxy S I9000 General] gabryeludrea:
It's looking wonderful. I never had that kind of performance. WiFi was always a crazy drainer.

It seems that people are going to use their phone for real.

Go ahead Google and Samsung, you are on a good road!
[Galaxy S I9000 General] gabryeludrea:
From what I experienced Gingerbread is better on battery consumption than Froyo. Excepting the Android OS madness.

But anyway, your battery life is great.

Thanks for your report!
[Galaxy S I9000 General] miztahbeezy:
Touchwiz 4 seems to cause the os process to spike
[Galaxy S I9000 General] gabryeludrea:
Interesting conclusion. Could you tell us what are the reasons for your concerning?
[Galaxy S I9000 General] 2310greg77:
everybody with batery drain problem ..the solution is simple...do a hard factory reset with the dial way then flash rom from samsung firmwares NOT friceto s(it give s me the phone fc bug)then do another factory reset from the settings this time...do not root -use the stock kernel....and enjoy a fast sgs with great batery life 1% idle per hour ,2 days with medium use....
[Galaxy S I9000 General] miztahbeezy:
I restored the original files for TouchWiz3 from my backup and the OS process seemed to normalize in consumption, right now testing the theory on the long run
[Galaxy S I9000 General] Coolgreek:
I myslef has noticed the battery drain on JVP 2.3.4 only once so far and i was never able to replicate it, although i did try! Samsung has definitely worked on that battery drain (and she's done a good job too)! The battery drain was noticed on criskelo's v71 JVP rom (not that i blame the rom for it of'course)! I've been using Juwe 5.0 lately and so far never had it again!

Twlauncher is not the cause of that, i ve used tw3, modded tw3 and lately tw4 (comes with Juwe's rom) so far with no differences to the drain (no issues that have to do with this investigation about android os that is)!
[Galaxy S I9000 General] miztahbeezy:
I have used another TW4, but right now I'm on ADW Pro and 2 days of uptime @ 70 percent. No drain. The problem reappeared when I copied TW4 again so that's that
[Galaxy S I9000 General] Prankey:
While most of us must be disconnecting the charger after full charge, I am one of those who doesn't as I use my phone for 3G to WiFi Tether.

All the GB images I have tried shuts down the charger after full charge and start draining the battery while the charger is connected. OS reads the battery as fully charged, however battery keeps draining till the phone goes dead.

As the charger was always connected, as soon as the phone goes dead, it restarts to battery charging mode like the charger was just plugged in on a switched off phone!

More info on the thread below:

http://xdaforums.com/showthread.php?p=14952316#post14952316

I would appreciate all of use to test and participate on the poll on my thread as this looks to be a battery pooling driver bug on all the GB builds by Samsung and probably Samsung is not even aware of it.

My phone went to service center and despite documenting the issue, they found nothing wrong with it! I have confirmed this issue many time and its easy to replicate - full charge and use the phone for sometime and disconnect the charger to see the charge - should not be less than 99% unless the phone was used very heavily when charger current wasn't sufficient to keep the charge.
[Galaxy S I9000 General] ownerof2600:
Music Test

For anyone interested in seeing how the SGS does as a high quality music player.

JVP 2.3.4

Voodoo kernel

Voodoo Sound

Poweramp

Played music through PowerAmp on:

-(Voodoo volume) +5db

-(Voodoo volume) -30db

-Equalizer: Bass and Treble

-Stock earphones

-Flight mode on

-Wifi, GPS etc. off

Just used it strictly as a FLAC/mp3 player.

Results:

+5db 100->90 in 3hours

+5db 90->80 in 3 hours

-30db 80->38 in 12 hours

+5db 38->10 in 6 hours

Played 24 hours nonstop, Screen on time less than 1 minute.

Seems like the battery drain was stable from 100 to 40%, then suddenly dropped 10 more % than expected.

Reasons could be:

-Battery life is better at high % (because +5db shouldve used more juice, just like at 38->10 later on)

-Battery is not calibrated correctly which I doubt though

ps. SGS with its Wolfson DAC has got great battery IMO.