yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Nexus] definator:
high idle drain can have many factors.

there are some apps to show you what in your system causes battery usage. i dont remember what those apps are called, coz i dont use them. maybe someone else can give a hint here.

(i think it was battery monitor or something)

in my opinion most factors are: very bad connection (red or yellow shown in battery overview)

some apps u install manually out of the store which are bad coded - maybe you have some of them

in a very few times something with the system goes wrong, you have to reflash then (is when android system cozes the highest % in drain)

always mention. if you run games or navigation like google maps, it drains a lot more like when you were surfing in the internet.

so the SOT should be the only thing you have to post here. everything else is regardless...

PS: thx ;)
[Samsung Galaxy Nexus] Prasad:
Thanks again! I'll try greenifying some of the games that I seldom play but they keep push notifying. Also, I'm not doing it but would it be a good idea to run juice defender app with this kernel? Already noticed the battery life extender option defaulted to 100 in trickster mod. Would there be any conflict there?

Sent from the inner sanctum of my mind.
[Samsung Galaxy Nexus] abhishek93:
nice battery :D on latest built.. :)

but google service?? why it is there..
[Samsung Galaxy Nexus] andry23jsv:
Which rom?
[Samsung Galaxy Nexus] abhishek93:
cataclysm..
[Samsung Galaxy Nexus] bluerez79:
I just noticed that I haven't been getting deep sleep. Here is BBS screenie. Any ideas? Wondering if the power management services has to do with no deep sleep.
[Samsung Galaxy Nexus] parthipanramesh:
You are just 13 minutes on battery? :D

Sent from my Paranoid Nexus running Fancy Kernel

---------- Post added at 05:24 PM ---------- Previous post was at 05:23 PM ----------

Stock battery? :)

Sent from my Paranoid Nexus running Fancy Kernel
[Samsung Galaxy Nexus] bluerez79:
Yea had just unplugged to get a snapshot of what was going on

---------- Post added at 04:33 PM ---------- Previous post was at 04:32 PM ----------

OK just rebooted a few times and now am getting deep sleep. Maybe it just took a while to kick in or the reeboots helped?
[Samsung Galaxy Nexus] zoomy942:
I have the same thing with Google services on stock 4.3 and unofficial cm 10.2
[Samsung Galaxy Nexus] pcphobic:
Yup, I do occasionally see Google Service in my battery history and also in GSam app.
[Samsung Galaxy Nexus] abhishek93:
soo i think its normal! is it?

:/ still finding the reason why it comes on some rom or on some kernel..

yup its stock..
[Samsung Galaxy Nexus] dexviajiboy:
Not the kernel I already try go to other & stock... and back to fancy, nothing prob happen with this, just happen once before I dont remember which kernel cause by dirty folashing, solved by reupdate debugg driver & clean flashing...
[Samsung Galaxy Nexus] definator:
I dont have Google service in my history
[Samsung Galaxy Nexus] abhishek93:
guys i need some help.. its off topic but i find this thread helpful so i m discussing my problem..

its like.. i live in a house where network signals are not good.. i get 1-2 bars with H and 3bars with 2g (signal bars).. bcz of which my idle drain is like 15-20%
[Samsung Galaxy Nexus] yaatzek:
So maybe use something like tasker to switch to only to 2g when at home.
[Samsung Galaxy Nexus] abhishek93:
will juice defender make any difference? and will try tasker :)
[Samsung Galaxy Nexus] pagratios:
I don't know if this is a kernel problem but when I try to play temple run 2 the app is force closing. I am using r36
[Samsung Galaxy Nexus] kevtrysmoddin:
Has anyone using 37-5 fancy kernel and dreams rom had android.process.media has stopped when connecting to p.c well attach a logcat from p.c shortly
[Samsung Galaxy Nexus] angourakis:
It's not kernel problem... if you take a look at the developer old thread (unofficial cm10.2), some users reported problems like this one...

The temple ran issue is, probably, not the kernel again..

I'm running pre37-3 and it's great, no issues so far!

Regards
[Samsung Galaxy Nexus] kevtrysmoddin:
thanks for the reply but have already spoke to the rom dev and it seems the error was due to the kernel as the error has gone with the roms stock kernel
[Samsung Galaxy Nexus] jlvlawrence:
For those wondering about Google services, that is location services. Its a notorious battery hog.
[Samsung Galaxy Nexus] pcphobic:
Possible cause of high idle drain on our Galaxy Nexus

[MENTION=1857767]abhishek93[/MENTION]

[MENTION=2961427]Prasad007[/MENTION]

[MENTION=4223301]definator[/MENTION]

[MENTION=4864980]mrdevil_25[/MENTION]

[MENTION=4671369]paarthdesai[/MENTION]

[MENTION=4885250]sajty[/MENTION] [MENTION=4615478]boype[/MENTION]

Hi guys, I think I know why some of us are getting high idle battery drain when we noticed "Google Services" taking up a high percentage in our battery history.

Could it be due to the "People Details" stopped to sync or experiencing sync error and it keeps on trying again and again?

Check out some of the comments below taken from http://productforums.google.com/forum/#!topic/mobile/p1TF2uOlF0A
[Samsung Galaxy Nexus] yaatzek:
What gapps are you using? Maybe that's the problem.
[Samsung Galaxy Nexus] pcphobic:
It has been the same Gapps that I have been using for many months already which is gapps-jb-20130301.zip.

My "People Details" has stopped to sync or experiencing sync error and it keeps on trying again and again. Anyway, if u read some of the comments below taken from http://productforums.google.com/forum/#!topic/mobile/p1TF2uOlF0A u will find that it is not just Galaxy Nexus.
[Samsung Galaxy Nexus] bigknowz:
Koush Superuser

If you are having issues with Beta 2, try Beta 3, [MENTION=617884]Koush[/MENTION] says:

Fix issues installing over SuperSU.
[Samsung Galaxy Nexus] stevensoaj:
+1 I have the same issue with Fancy on Slimbean 4.3 alphas. Haven't tried it on Cataclysm yet but after I'm done testing the default kernel, I'll flash fancy and try it out. Hopefully I'll have a logcat to post. What are your preferred methods of getting logcats guys? I can never seem to figure it out.
[Samsung Galaxy Nexus] alfiemenace:
Is the default io scheduler (and it's tunables) and governor the best and most optimal? :)
[Samsung Galaxy Nexus] abhishek93:
hmmm so it means if we have to get rid off this we should stop automatic sync? will manual synchronization work?

or we should wait for google to fix it..

sorry for so many questions :P
[Samsung Galaxy Nexus] chikimonke:
Hey [MENTION=4615478]boype[/MENTION] I've been thinking about the multicore power saving feature, and I'm not convinced that it's saving battery. Now I will say that I have no hard data or anything, but purely a thought process and how my phone "feels" so this is really just an exercise for better understanding at this point. As I understand it, this feature tries to utilize only one of the two cores as much as possible, with the intent of saving battery. Now the thought process going through my head is this, is running a single core, at a higher freq, and probably a longer time any more battery friendly than the 2 cores at a lower freq for a potentially shorter time? I threw in the time factor because the "feel" portion of my highly scientific study, is that things happen more quickly with the feature off, than with on. I wonder if we might see better performance and battery if you were able to make this feature dynamic, so it's set to 2 with screen off and 0 (or 1 I suppose) with screen on? My thought here is that the processes that the phone must get through tend to be much lighter with the screen off, so it can afford to have only 1 core available, where as when you're using your phone, you probably want the full power available for the best user experience. All just thoughts and me thinking out loud on something that I've been curious about for a while now.
[Samsung Galaxy Nexus] stevensoaj:
I'm not [MENTION=4615478]boype[/MENTION] :p, but I love this idea. However from my understanding, even with MCPS set at 2, your device still has access to both cores if it needs them for heavy processing. Is that not your experience as well?
[Samsung Galaxy Nexus] chikimonke:
Maybe I just need to try 1 instead of 2, but I find that it takes a lot to get it to kick in the 2nd core, and by that point it's playing catchup and seems to ramp both cores to max freq.
[Samsung Galaxy Nexus] stevensoaj:
That's true. I usually run it on 1 also.
[Samsung Galaxy Nexus] chikimonke:
So I took a look at the info that is linked in the OP about MPS and as I expected...most of it is well beyond my comprehension :p If I understood any of what I read there, maybe there's just some tuning that needs to be done to the few parameters that affect MPS? I'll also give running it at 1 a try too, see where that gets me. At the very least, I still think it would be cool to have a screen off and screen on state for this feature. :)
[Samsung Galaxy Nexus] heartbeat.rulez:
background light is always on
[Samsung Galaxy Nexus] pcphobic:
[MENTION=1857767]abhishek93[/MENTION] For now, just uncheck the sync for People Details.

Try it and see.

---------- Post added at 02:50 AM ---------- Previous post was at 02:39 AM ----------

[MENTION=2495716]chikimonke[/MENTION]

I recalled somebody posted b4 his own settings and he set the MCPS to 0 as he believed setting it to 2 does not really save much battery power.
[Samsung Galaxy Nexus] Prasad:
I read more than a few times in the Franco kernel thread how the actual battery savings from MCPS if anything, was a placebo at best..

Personally, I too have set this option to 1.

Sent from the inner sanctum of my mind.
[Samsung Galaxy Nexus] abalam:
Is this kernel related for JWR66V or JSS15J builts?

Sent from my ???❎//?
[Samsung Galaxy Nexus] Prasad:
Tried and tested... works perfectly well on both!

Sent from the inner sanctum of my mind.
[Samsung Galaxy Nexus] abalam:
That is no answer yet.

Sent from my ???❎//?
[Samsung Galaxy Nexus] stevensoaj:
Should work on both, according to boype.
[Samsung Galaxy Nexus] abalam:
Thanks man. That's an answer!

Sent from my ???❎//?
[Samsung Galaxy Nexus] chikimonke:
Do you remember seeing it over in the AK Kernel thread by chance? If so, there's a pretty good chance you remember seeing my post there. It's a thought that keeps passing through my head and it got loud enough again for me to want to bring it up. :) I definitely notice better performance with it set to 0, but I can't say one way or another if there's any difference in battery.
[Samsung Galaxy Nexus] dmourao:
Although some people may say it's a placebo, It does give me a better battery life. And yup, performance is noticeably worse with it set 2. So putting it to balance, maybe it's not worth or maybe it is, depends on your needs.
[Samsung Galaxy Nexus] ChazzMatt:
4.3 kernel based on JWR66V or JSS15J?

Can you please provide a link to where that is stated by him? :confused: Because a 4.3 kernel built on one will have problems with the other -- unless he's found a magical formula...
[Samsung Galaxy Nexus] pcphobic:
I think I found the workaround to the mysterious battery drain during idle.
[Samsung Galaxy Nexus] Sik-1:
When I set it to 2 I usually change my intermediate frequency to the max, I noticed that if I treat the single core like an ondemand type it performs much better and smoother, give it a try an let me know how u feel bout it .
[Samsung Galaxy Nexus] pcphobic:
Mysterious Battery Idle Drain Solved

[MENTION=1857767]abhishek93[/MENTION]

[MENTION=2961427]Prasad007[/MENTION]

[MENTION=4223301]definator[/MENTION]

[MENTION=4864980]mrdevil_25[/MENTION]

[MENTION=4671369]paarthdesai[/MENTION]

[MENTION=4885250]sajty[/MENTION] [MENTION=4615478]boype[/MENTION]

After reading the comments above taken from http://productforums.google.com/forum/#!topic/mobile/p1TF2uOlF0A , I have disabled the sync option for "People Details" and did an overnight battery drain test.

And true enough, Google Services does not appear anymore during my sleep with the phone lying idle there by my bedside.
[Samsung Galaxy Nexus] Prasad:
^^ As of last night, I can confirm this as well!

Sent from the inner sanctum of my mind.
[Samsung Galaxy Nexus] stevensoaj:
http://xdaforums.com/showthread.php?p=44081598
[Samsung Galaxy Nexus] okanb3:
I just cant find Sync screen. Where is it?

Edit: found it, thanks.

Galaxy Nexus cihazımdan Tapatalk 4 Beta ile gönderildi
[Samsung Galaxy Nexus] ChazzMatt:
Thanks!
[Samsung Galaxy Nexus] abhishek93:
it doesn't solve the problem...
[Samsung Galaxy Nexus] pcphobic:
[MENTION=2495716]chikimonke[/MENTION]

I think I read about setting Multicore Power Settings to "0" from [MENTION=5109059]7175[/MENTION]

He was sharing with us his custom kernel settings for getting much better battery life back then on r28 test2

Here's the link to his posting http://xdaforums.com/showpost.php?p=42148618&postcount=1978
[Samsung Galaxy Nexus] Prasad:
A most interesting read... I need to work on battery life since I barely get 2 hours SOT now!

Sent from the inner sanctum of my mind.
[Samsung Galaxy Nexus] Prasad:
See what I mean... I already cleared batterystats, but to no avail..

Sent from the inner sanctum of my mind.
[Samsung Galaxy Nexus] pcphobic:
[MENTION=2961427]Prasad007[/MENTION] Could be also due to battery old age.
[Samsung Galaxy Nexus] Prasad:
I'm on minimum brightness almost all the time... I cannot imagine doing any more power savings! Guess it's time for a new device.. truth be told, this one has been used only for at most three months.

Sent from the inner sanctum of my mind.
[Samsung Galaxy Nexus] pcphobic:
I stopped using Lookout or any Anti-virus app a long time ago.

Btw, are u using Facebook app? Facebook app is a known battery drainer too.

Same goes with Google + app. So best to uninstall them
[Samsung Galaxy Nexus] Prasad:
I use lookout only for the anti theft features. I use both Facebook and Google+ as well... not really sure what I can replace them with. :P

Sent from the inner sanctum of my mind.
[Samsung Galaxy Nexus] pcphobic:
For Facebook, I use the web browser. If I want to upload photos or videos to my Facebook I use Friendcaster app or I select Facebook Desktop mode.

I seldom use Google +

Also disable Google Photos sync.
[Samsung Galaxy Nexus] Prasad:
Thanks again! I've uninstalled all three. I've had sync disabled for a while now. Can you suggest a good anti theft app to replace lookout minus the antivirus?

PS. I hope Facebook messenger isn't such a battery hog as well? I use it almost daily..

Sent from the inner sanctum of my mind.
[Samsung Galaxy Nexus] pcphobic:
[MENTION=2961427]Prasad007[/MENTION] sorry to tell u this.. but Facebook Messenger too is a culprit.

For the sake of experiment, I suggest u try for one day going about your usual routine of using your phone but without the following 3 apps:

1) Facebook app

2) Facebook messenger app

3) Google +

For checking your facebook, just use the web browser in your phone. In the mobile facebook website, u can also click on the link to go to the Desktop version.
[Samsung Galaxy Nexus] Prasad:
I don't think my problem was ever so simple... And I believe I've found the true culprit. Please read PM. ^_^

Sent from the inner sanctum of my mind.
[Samsung Galaxy Nexus] rmcsc:
It doesn't matter if the file name says tuna... it should work fine on maguro, right?

I installed it, of course... but I just got a bit OCD when I read tuna.
[Samsung Galaxy Nexus] stevensoaj:
Tuna is all galaxy Nexus's (Maguro, Toro, Toro+)
[Samsung Galaxy Nexus] chikimonke:
You can give Cerberus a try for antitheft. It's not free, but it sits quietly in the background, has a Web interface too. Can also automatically take a picture if you have security enabled and the wrong code or pattern is entered. Haven't noticed any drain from it either.
[Samsung Galaxy Nexus] Prasad:
I have found my peculiar battery drain to be associated with a certain "AudioIn_2B6" app/service as indicated by Android Tuner, which is consuming ~46% battery overall! Since it has a linux penguin logo icon next to it, I'm wondering if it's a module from this kernel, or familiar to anyone who uses it? If not, I can safely assume it has to do with the XLOUDER! Mod that I have flashed and can get rid of it right away.
[Samsung Galaxy Nexus] n2rjt:
Or wait for Google's app, coming soon.
[Samsung Galaxy Nexus] thomstrack:
In pre37-x the memory isn't cleaner as the last version for 4.2.2. Now I need reboot daily for clear memory and the phone works normal.

This happens for anyone?

(Clean install, on stock 4.3)
[Samsung Galaxy Nexus] TheMysteriousOne:
That is only a solution if you actually keep sync on and people details sync keeps failing.

You can just greenify the facebook app and disable notifications from within the app. Same for G+ - just greenify it, no need to remove.
[Samsung Galaxy Nexus] alfiemenace:
Are these still applicable with the current kernel for 4.3?
[Samsung Galaxy Nexus] sing1gnis:
Will some post the default screen color settings from pre37-5 please? Thanks!
[Samsung Galaxy Nexus] sing1gnis:
Thank you.
[Samsung Galaxy Nexus] pcphobic:
[MENTION=2961427]Prasad007[/MENTION] here is my overnight battery drain test.

After sleeping for 8 hours 10 minutes, I only lost 6% and this is with sync enabled and data enabled and on 3G (no WiFi).

---------- Post added at 11:44 AM ---------- Previous post was at 11:40 AM ----------

Correct. And all those ppl who are suffering from this Google Services running high in their battery history mosty probably are like me who needs certain Google services sync enabled... for example Gmail.

Thanks for the tip on Greenify.

---------- Post added at 11:56 AM ---------- Previous post was at 11:44 AM ----------

[MENTION=3982755]alfiemenace[/MENTION] Good question. I don't know. We will have to ask [MENTION=5109059]7175[/MENTION] if he is still using the same custom kernel settings for the r36 or any of the pre37 version of Fancy kernel.
[Samsung Galaxy Nexus] midnightdevil66:
All u guys having battery issues, something with rouge apps. This is on toro with all syncs on wifi and 4g on, and u know that toro 4g eats it up.

Posted from my PZOSP Toro
[Samsung Galaxy Nexus] splus:
Cerberus is maybe quiet, but it's definitely not in the background.

It's easily the best anti theft solution in Play Store. Heaps of fantastic security options and remote control via sms and Web.

Zero battery drain as well.

It's not free but it's not expensive either.

I've had Google services usage spike up few times in past week but then it went down to normal on its own.

Apparently Google is doing some big Google service updates with useful features (like compass mode in Photoshpere shots) recently, which could explain its drain.

I have people details sync enabled, together with App data, Contacts, Gmail and Google+ backup (photo upload), but disabled Google+ (which I use, but it only syncs itself when the app is open), and Currents, Movies and Music which I don't use.

No any extra battery drain except the mentioned couple of spikes in past week.
[Samsung Galaxy Nexus] Prasad:
It seems I've solved my battery drain... It had to do with charging sounds and the like keeping the AudioOut_3 wakelock alive the whole time. I've also installed Cerberus and think it is well worth the money. Thanks for the advise, gentlemen!

Sent from the inner sanctum of my mind.
[Samsung Galaxy Nexus] rmcsc:
Derp. That's true. Silly me.
[Samsung Galaxy Nexus] neur0tk:
Does anyone turn off FSYNC?
[Samsung Galaxy Nexus] Seraz007:
No
[Samsung Galaxy Nexus] Godra:
I do
[Samsung Galaxy Nexus] dab_penyo:
For facebook I use Tinfoil for Facebook :good:
[Samsung Galaxy Nexus] pcphobic:
In Gsam, click on apps to drill down further to see what apps have been using a high percentage of your battery.
[Samsung Galaxy Nexus] cruel91:
Just want to share with you guys my battery statistic. This is amazing and damn smooth. Fancy 35-7 with Purity 02-Aug.

Both min: 192

Max screen off: 384

Undervol: -15 for each freg

Location service OFF

Wifi ON all the time

Full sync with ONE account
[Samsung Galaxy Nexus] midnightdevil66:
I'm not complaining. I've got great battery stats.

Posted from my PZOSP Toro
[Samsung Galaxy Nexus] tragulus:
Hi, I'm still having high Google service activities even when I already deactivate people sync. Is this 4.3 related?
[Samsung Galaxy Nexus] Prasad:
Try disabling other sync options that you don't need such as Google photos and the like. See if that helps... looks to be like a 4.3 issue so far!

Sent from the inner sanctum of my mind.
[Samsung Galaxy Nexus] tragulus:
Thanks!

Will try to do that, never had this even with all sync checked on 4.2X
[Samsung Galaxy Nexus] TiagoRigueto:
thanks for kernel... is very good with CM10.1.2

when is news?

you have facebook?
[Samsung Galaxy Nexus] infectedorganism:
If FSYNC is disabled, how great is the risk of data loss if the phone crashes?
[Samsung Galaxy Nexus] creeve4:
I hope that going forward you continue to base your kernels on AOSP code.
[Samsung Galaxy Nexus] bolanrox:
It is a weird one - the script did everything you mentioned.

I picked the version i wanted said yes to the download, and then when it got to contacting the static site - it just sat there (left it over 2 minutes.). I figured maybe my connection was bad, but standing in the same place i opened the browser link and downloaded it no problem.

(also tried manually connecting to the static site - was it was fine)

Could just be a fluke? Anyone else try it yet? Going back in to try it when on already on v9 it hangs on the checking SU portion for me.
[Samsung Galaxy Nexus] boype:
Knowledge base: discard / FSTRIM

This is yet another post to be linked to the OP.

I just want to point out that it may be worth trimming your file system every once in a while to maintain a good file system performance and to prevent lags (easily understandable explanation: what is TRIM? | more technical version). Several posts on XDA suggest to trim the file system approximately every week.

As of r10 of this kernel, the discard mount option is activated for all partitions. discard will take care of trimming your file system in real time, so no performance loss will be present. There is one downside, however: When deleting large amounts of data at once, the system may hang for several seconds, because the file system is trimmed right after deletion. But this should rarely happen, if it happens at all. In my opinion, discard is the way to go.

For extended information with benchmarks, I also recommend reading this XDA thread.
[Samsung Galaxy Nexus] gwindlord:
Weird indeed. Looks like wget could not access for boot.img for some reason. I'm going home now, will share testes result in a couple of hours.

I hoped wget is reliable enough...
[Samsung Galaxy Nexus] bolanrox:
giving it a try now thanks! acutally data just finished in the time it took to set up the quote :)
[Samsung Galaxy Nexus] agritux:
script worked perfectly. i think it wiped cache and dalvik too. thanks :) it is very easy to update now :)
[Samsung Galaxy Nexus] sruel3216:
Re: [KERNEL][4.2.x] Fancy Kernel (r9) (MAR-04-2013)

How often do u suggest running?

BTW first time user of fancy. I like
[Samsung Galaxy Nexus] gwindlord:
Just updated with fuss from 8 to 9, no issues at all. bolanrox, maybe http://boypetersen.de not really works for you due to some reason. I hope it disappears in some time.

Also just done fstrim, indeed, how often it shoud be done? :)

Yeah, it wipes both cache and dalvik-cache, that's why reboot takes more time - they're regenerated during boot.
[Samsung Galaxy Nexus] agritux:
maybe dns problem
[Samsung Galaxy Nexus] boype:
I think approximately once a week is a good reference point.

Yes, sounds like it...
[Samsung Galaxy Nexus] bolanrox:
maybe? could have been at the minute i was trying. once i rebooted and was on v9 i could get the website in my browser..

i would think once a week for the fstrim. maybe 2 times if i am bored :)