Develop Bugs

[Q] Dose installing many apps drain the battery more quickly

I have heard somewhere that installing many apps can drain the battery more quickly
I just want to know wheter or not installing apps that are not running in the background drains the battery?.
Thanks.
Sent from my GT-N7100 using xda premium

Not if they are not running in the background
Some people have installed more than 300 apps (user apps)
scribbled from my note 2 (N7100)

It's no different than your computer. You can have 50000 apps installed, but only the ones running consume active (ram, battery, network) resources.
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I would love to help you, but help yourself first: ask a better question
http://www.catb.org/~esr/faqs/smart-questions.html

Be aware though that many do run in the background even if you haven't run them.
Sent from my GT-N7100 using XDA Premium HD app

In General Yes, but I'd say depends on the apps, if there are 200 quality apps, (however I don't know how many are there in Play Store), and you've not turned on the background data for them, then it might not drain much. But if you've even 5 crap apps installed then they'll be enough Culprit to hog the juice more than those 200 apps.
In short, DO NOT install crap apps, do not install whatever you see. Read user reviews, see ratings, then decide. I, for me, think 3 times before installing one, even if it comes from a Top Developer tag.

Yes it does take more battery. So install the apps which you are going to use.

AlanDS said:
Yes it does take more battery. So install the apps which you are going to use.
Click to expand...
Click to collapse
Can you please back this up? Used storage doesn't increase battery usage.
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I would love to help you, but help yourself first: ask a better question
http://www.catb.org/~esr/faqs/smart-questions.html

It totally depends on applications you have installed
If you have hundreds of application and they don't autostarts or have no sync function and just occupying storage, it won't drain battery, in usual course i do have 150 user application installed but hardly it even drains recordable juice except some of it requires auto refreshing and sync
Sent from my GT-N7100 using xda premium

There are application that can disable the apps you've installed from auto starting or running in the background. Usually the biggest culprits are the free ad supported apps that tend to randomly call up even when the phone is in sleep mode. There are many ways to stop it from happening.. If you can pay for ad free app then go for it otherwise a lot of 3rd party apps will allow you to disable those features. I don't understand why someone would install 200-300apps in the first place when you only end up using less than a quarter of those. I guess its that "you never know when you're gonna need it" habits.
Sent from the Rabbit Hole

There are a number of apps which do run in the background, even when you don't manually run them first. Applications can register receivers to trigger at various events (such as boot-up complete, call ended, etc) and complete tasks in the background, or register themselves as services. You can check these with an autostart app, or I use ROM Toolbox (https://play.google.com/store/apps/details?id=com.jrummy.liberty.toolboxpro&hl=en - there is a free version available too).
On top of that, apps can also run scheduled tasks which can wake the phone out of deep sleep in standby, which can cause additional battery drain, through either CPU or network usage.
Unlike iOS which kills most background apps after a couple of minutes, Android apps can run indefinitely in the background, unless of course they are killed by memory management first.

[APP] Greenify *ROOT*

Has anyone tried this app? It's supposed to put certain chosen apps into hibernate, like how iOS's multitasking works.
What apps would be best to put on hibernate? Can we make a list of apps safe to hibernate + save battery life in the process?

242 five star ratings, something seems to be making the users happy. I may try this out, as my biggest drain seems to be background applications, apart from the screen that is.

I tried it and i must say, it's pretty damn good!

Yes we can save a lot of battery
Sent from my GT-N7100 using xda premium

3 'New' cool apps

Hey guys,
I just wanted to inform you about two apps I found recently that appear to boost performance and battery life a bit.
The one that boosts performance is a better and more efficient version of Seeder. It's called SeFix and (as opposed to Seeder) really does seem to work!
The second (the battery booster) is actually way more versatile:
It's called Greenify and it lets you disable apps to run in the background.
Eg. I set it to decline the Google Maps request to run in the background all the time; because as we all know, Maps often sucks somewhere near 7% of the battery.
(However, it needed me to root uninstall it and then install it from the play store, so it wasn't a system app anymore)
Anyway: I hope this helped and that it makes your device nicer to use (like it did for me)
Last but not least: as you are probably aware: Orange Backup is a backup app that lets you do complete (CWM or TWRP style backups) without having to go into the recovery!
Really awesome.

Re: 2 'New' cool apps
Been using greenify since the first version and agree it works well
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gsw5700 said:
Been using greenify since the first version and agree it works well
Sent via TCP/IP
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I really feel it extends my battery life. I like how it prevents Maps to run in the background.
I guess you can also set it that way for FaceBook too (if you have the app. I don't because I don't want to be tied to FB all the time) lol

Task killers and hibernation

Android experts all say task killers are unnecessary (except to kill a misbehaving app) because the android OS is designed to use all the available memory and it costs as much battery power to maintain a memory containing nothing as memory containing something. So emptying memory by killing an app just causes android to immediately load something else (or the same app) back into memory.
My question therefore has to do with apps like Greenify, which "hibernate" apps till they are actively called. Is hibernation just another name for removing apps from memory and therefore as counter productive as task killers? I can see the subtle differences but they seem minor compared to the similarities.
What do the experts who know android say? I don't know enough to really know.
Any studies to show an advantage (battery, etc.) in using an app like Greenify vs not?
Thank you.
Jeff

For me, I tried all of those battery saver app, none of them actually significant save battery, plus they use up some of your ram. I read somewhere says that android itself can handle battery save plus manage apps in it memory just fine.
Nam Huy Linux http://namhuy.net

Task Killers use extra CPU cycles and can lead to loss of battery life.
I'm not sure about hibernation but I think it just prevents apps from being started automatically when the device is powered on and therefore saves battery and CPU.
Sent from my Nexus 7 using xda premium

Anderson2 said:
Android experts all say task killers are unnecessary (except to kill a misbehaving app) because the android OS is designed to use all the available memory and it costs as much battery power to maintain a memory containing nothing as memory containing something. So emptying memory by killing an app just causes android to immediately load something else (or the same app) back into memory.
My question therefore has to do with apps like Greenify, which "hibernate" apps till they are actively called. Is hibernation just another name for removing apps from memory and therefore as counter productive as task killers? I can see the subtle differences but they seem minor compared to the similarities.
What do the experts who know android say? I don't know enough to really know.
Any studies to show an advantage (battery, etc.) in using an app like Greenify vs not?
Thank you.
Jeff
Click to expand...
Click to collapse
I have to agree with task killers not really being necessary, especially with newer devices, for the most part. I've had and used ATK for years now and use it on occasion but by no means do I use it regularly. The only app I use that ever misbehaves is Google Voice, while deleting a bunch of texts it will on occasion hang up and need to be killed. The two scenarios I use it regularly is before playing "some" games and usually before using VLC before watching a video. When using VLC I will often pause, skip, rewind, fast forward and on occasion use slow motion to further investigate any milk shake, if it's looks to be worth my time. In those two scenarios I believe it does make a difference. Other than that I don't use ATK and it's not needed.
As for Greenify, I've been using it since it was first released and I won't hesitate to admit to being a big fan. You don't want to use it for everything. Any widgets that need to update or apps you want to get notifications from I would not hibernate, even though it is supposed to work with some notifications I personally have never tried it. Having said that I have a ton of apps that I do hibernate with Greenify. System and user apps. And if I remember right I believe the auto-hibernate works at some point in time after your screen has shut off. If I'm wrong someone please correct me! I also have to say that using Greenify is part of the reason I routinely see 1-2% battery use during 9-10 hrs of standby and I have Never had a problem with wakelocks. I think it is unrealistic to attribute good battery life to any one specific configuration setting or app, it's going to be a combination of multiple things. And I think Greenify is part of the puzzle along with wifi use, wifi configuration, LTE use, display brightness, sync frequency, location settings and so on. My N7 is not a good example because it gets used very hard almost everyday and I still typically see 5-7+ hrs of screen on time and as high as 9 but rarely. My N5 also typically between 5-7 hrs sot, often as high as 9 and once saw 11 hrs of screen on time. And... I actually have screenshots. I would say give Greenify a try, used properly you will see a benefit. For what it's not worth, just my two cents!

Thank you. I've also used Greenify for a long time but don't know enough to really evaluate its effectiveness. I have not however dared to use it for system apps because of the warnings.
Which system apps have you hibernated without problem?

Anderson2 said:
Thank you. I've also used Greenify for a long time but don't know enough to really evaluate its effectiveness. I have not however dared to use it for system apps because of the warnings.
Which system apps have you hibernated without problem?
Click to expand...
Click to collapse
Google search, chrome, keep, news and weather (don't really use), youtube. Google play books, games, movies, music, Google+ and Hangouts I have disabled because I use other apps but those could very well be hibernated except for Google+ and Hangouts (notifications).
I missed currents, email, korean keyboard, google pinyin, iWinnIME, google play magazines which I have disabled also but any of those could be hibernated.

Thank you.

Anderson2 said:
Thank you.
Click to expand...
Click to collapse
No problem. I just realized I show google search in my list of apps I hibernate but I should mention that I don't use google now. If you do you probably want to leave google search alone if you want google now notifications.

That's fine. I don't use Google search, google plus, Hangouts, etc. Etc. Either but was afraid to disable them because of potential problems when the next system update comes. How do you disable them? Titanium b/U or something else?
(I'm rooted).

[Q] RAM is at 2GB of 3GB ??

I have noticed that im using up 2gb of ram. But i have only downloaded a few apps. No games. All the stuff i had before. My old phone was a little over 1gb total. Is this normal. Does the phone uses a lot of ram out of the box. Im thinking of rooting just so i can free up some ram. Not sure if that is possible. Im coming from a galaxy and very happy with this d851 g3.
Anyone having a memory problem ? Issues? What can i do?

Android always runs while using up as much ram as possible. Thats normal, if your phone had 8gb of ram, most likely it would also be using most of it up.

Makes app switching faster.......

All that bloatware runs in the background contributing to a high ram usage

nohcho said:
All that bloatware runs in the background contributing to a high ram usage
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Click to collapse
Not completely true. I disabled most of the T-Mobile and LG crap on this phone and it's still using the same amount of RAM. It's Android's memory management.

I bet if the Android team could go back in time in the early days of system development they would have probably removed the ability to see free ram. So many people get caught up in free ram when the phone is using the available ram to the best of its ability.

Windows does alot of the same as well. Even though if you go into task manager it shows free if you actually look at your system resourses it shows alot of it is taken.

Unused RAM is wasted RAM.

Not sure about the whole 2g for 3gb thing but your system need all the rams it can use to keep your phone running smoothly. If you use ram cleaner (so they are call) you will notice your phone goes through a gitter before it it can pick up again. You look 5 minute later, its like you never clean anything.
and tmobile is surely 3g

Free RAM is wasted RAM.

Android uses RAM differently from say Windows. Android will use as much ram as available and when it needs more, it will free it up as needed. This is normal.

So yea i installed greenify and it made a **** load of a difference because i have like 40 games and a load of other apps. I have less than 1.5 gigs used now. And my phones way smoother and batterylife is good again
Sent from my LG-D851 using XDA Premium 4 mobile app

brolic925t said:
So yea i installed greenify and it made a **** load of a difference because i have like 40 games and a load of other apps. I have less than 1.5 gigs used now. And my phones way smoother and batterylife is good again
Sent from my LG-D851 using XDA Premium 4 mobile app
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Click to collapse
Don't worry you're about to see that battery life drop like a rock. Constantly killing apps will kill your battery fast. Greenify is a nice app if you have a crap phone but your G3 was made the way it is for a reason. What you think is smooth and fast is actually hurting your phone. Don't believe me, Google it and do some research. I do not recommend anyone using any format of task killer or ram optimizer on a phone that is current with the times.

Do I think the phone has issues. yes. When using it the apps don't close when ram is needed. Only fix is a reboot or kill the app but at times that does not work

Jammol said:
Don't worry you're about to see that battery life drop like a rock. Constantly killing apps will kill your battery fast. Greenify is a nice app if you have a crap phone but your G3 was made the way it is for a reason. What you think is smooth and fast is actually hurting your phone. Don't believe me, Google it and do some research. I do not recommend anyone using any format of task killer or ram optimizer on a phone that is current with the times.
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Click to collapse
Don't worry Jammol doesn't know what he is talking about. Greenify doesn't hurt battery life and performance like a task killer because isn't a task killer. It is completely different. I agree that task killers should be renamed to battery/phone performance killers but Greenify is very different.
First of all it requires your phone to be rooted. Assuming that it is, it uses special permissions from the rooted device to essentially freeze the app unless it is opened by the user. For example, I use facebook but only casually. I look at it once every other day or so but have noticed that the push notifications and messenger uses a lot of battery because it does a partial wake everytime it pushes a update which activates the internet and cpu.
The solution is to "Greenify" the app. The app still loads normally when I open it up although, because it is not in the ram, it likely takes slightly longer to load. Once it is opened, I can use it like normal and I get push notifications again until my phone's screen goes off. Once the screen goes off, facebook and all the apps that I "Greenify" are flushed from the memory and are banned/essentially frozen until I launch the respective app again. The only drawback to this is that you essentially never get push notifications for the apps but it saves a lot of battery if you pick the apps that you don't care much about/rarely use.
So greenify does work really well. Today my phone had 17% left. I it had 16+ hours of battery time total. I got 4.25 hours of SOT with sync on (with 3 email accounts getting push notifications plus other apps), GPS high accuracy, LG health automatically recording my exercise, and 1 hour of navigation with Waze. Basically I used my phone how I wanted and didn't micromanage my battery usage throughout the day at all.
I used 3 battery saving tools. 1. ART 2. Greenify and 3. Custom Kernel V002 from KAsp3rd. These three are very powerful together.
I hope that helps someone!

ART

CAP3r5 said:
Don't worry Jammol doesn't know what he is talking about. Greenify doesn't hurt battery life and performance like a task killer because isn't a task killer. It is completely different. I agree that task killers should be renamed to battery/phone performance killers but Greenify is very different.
First of all it requires your phone to be rooted. Assuming that it is, it uses special permissions from the rooted device to essentially freeze the app unless it is opened by the user. For example, I use facebook but only casually. I look at it once every other day or so but have noticed that the push notifications and messenger uses a lot of battery because it does a partial wake everytime it pushes a update which activates the internet and cpu.
The solution is to "Greenify" the app. The app still loads normally when I open it up although, because it is not in the ram, it likely takes slightly longer to load. Once it is opened, I can use it like normal and I get push notifications again until my phone's screen goes off. Once the screen goes off, facebook and all the apps that I "Greenify" are flushed from the memory and are banned/essentially frozen until I launch the respective app again. The only drawback to this is that you essentially never get push notifications for the apps but it saves a lot of battery if you pick the apps that you don't care much about/rarely use.
So greenify does work really well. Today my phone had 17% left. I it had 16+ hours of battery time total. I got 4.25 hours of SOT with sync on (with 3 email accounts getting push notifications plus other apps), GPS high accuracy, LG health automatically recording my exercise, and 1 hour of navigation with Waze. Basically I used my phone how I wanted and didn't micromanage my battery usage throughout the day at all.
I used 3 battery saving tools. 1. ART 2. Greenify and 3. Custom Kernel V002 from KAsp3rd. These three are very powerful together.
I hope that helps someone!
Click to expand...
Click to collapse
Out of curiosity, how are you using art with xposed? Greenify uses the xposed framework.
Sent from my LG-D851 using XDA Free mobile app

Harmtan2 said:
Out of curiosity, how are you using art with xposed? Greenify uses the xposed framework.
Sent from my LG-D851 using XDA Free mobile app
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I am not using xposed. Greenify works just fine for me without xposed. If you want some of the more advanced and experimental features, you need xposed but the basic functionality does not require it..

CAP3r5 said:
I am not using xposed. Greenify works just fine for me without xposed. If you want some of the more advanced and experimental features, you need xposed but the basic functionality does not require it..
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Aww that man's sense. I want to ruin art, I just don't want to give up my xposed features lol.
Sent from my LG-D851 using XDA Free mobile app

Harmtan2 said:
Aww that man's sense. I want to ruin art, I just don't want to give up my xposed features lol.
Sent from my LG-D851 using XDA Free mobile app
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I know what you mean! This is just the latest skirmish in the never ending war between features and battery/performance. I can't wait for Android L to come out because this particular battle will end (xposed will support android L which uses ART exclusively) but the war will rage on..