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So i saw many posts on which people have asked as to which task killer should be used !
and then i stumble upon this site which provided me the details,
i just complied info
sources-by Chris Hoffman
http://www.howtogeek.com/127388/htg-explains-why-you-shouldnt-use-a-task-killer-on-android/
Android Doesn’t Manage Processes Like Windows
Most Android users are familiar with Windows. On Windows, many programs running at one time – whether they’re windows on your desktop or applications in your system tray – can decrease your computer’s performance. Closing applications when you’re not using them can help speed up your Windows computer.
However, Android isn’t Windows and doesn’t manage processes like Windows does. Unlike on Windows, where there’s an obvious way to close applications, there’s no obvious way to “close” an Android application. This is by design and isn’t a problem. When you leave an Android app, going back to your home screen or switching to another app, the app stays “running” in the background. In most cases, the app will be paused in the background, taking up no CPU or network resources. Some apps will continue using CPU and network resources in the background, of course – for example, music players, file-downloading programs, or apps that sync in the background.
When you go back to an app you were recently using, Android “unpauses” that app and you resume where you left off. This is fast because the app is still stored in your RAM and ready to be used again.
Why Task Killers Are Bad
Proponents of task killers notice that Android is using a lot of RAM – in fact, Android stores a lot of apps in its memory, filling up the RAM! However, that isn’t a bad thing. Apps stored in your RAM can be quickly switched to without Android having to load them from its slower storage.
In summary, you shouldn’t use a task killer – if you have a misbehaving app wasting resources in the background, you should identify it and uninstall it. But don’t just remove apps from your phone or tablet’s RAM – that doesn’t help speed anything up.
Empty RAM is useless. Full RAM is RAM that is being put to good use for caching apps. If Android needs more memory, it will force-quit an app that you haven’t used in a while – this all happens automatically, without installing any task killers.
Task killers think they know better than Android. They run in the background, automatically quitting apps and removing them from Android’s memory. They may also allow you to force-quit apps on your own, but you shouldn’t have to do this.
Task killers aren’t just useless – they can reduce performance. If a task killer removes an app from your RAM and you open that app again, the app will be slower to load as Android is forced to load it from your device’s storage. This will also use more battery power than if you just left the app in your RAM in the first place. Some apps will automatically restart after the task killer quits them, using more CPU and battery resources.
Whether RAM is empty or full, it takes the same amount of battery power – decreasing the amount of apps stored in RAM won’t improve your battery power or offer more CPU cycles.
hope u understood!
words of wisdom by fellow-mates
go into settings - apps and see how many running apps you have. now go to cached apps and see there, how many apps there are. you see? nearly 50% of those apps discovered by you in the processes are apps that you didn't opened ever but they are still opened and running. why? because that's how linux manages its resources. instead of having free ram for no use (what's the point of having 14gb of ram when you only use 1gb), linux fills all the ram blocks with useful apps or apps that you are running frequently so that when you call that app, it will bring it on the screen almost instantly. this my friend, is called multitasking.
and no, you are wrong. if you use a task killer killing the apps every 10 minutes, the cycles the whole system does - opening again apps and caching them, task killer closing them - results in much more functions done by CPU => more battery spent. even if you say that the battery life its the same, you are wrong. when using a task killer IT MIGHT drain your battery with 0.1% per hour. it's not that much, but IT EXIST.
oh and yeah, one thing: android has its own task killer. that's why you don't need one app to kill your other apps. because android its doing it by itself. if you don't believe me, strip down one kernel, open the init.rc file and find the values for task killer.
I've never used those programs, I like to use what the phones have by default
But is good to know anyways
I agree with that...to an extent
Auto killing apps is plain stupid, but I do believe in killing certain apps. In a perfect world heavy apps would just be uninstalled, but plenty of useful apps without good replacements are fairly heavy, and it helps to kill them. E.g. after exiting a game I will kill it because its hogging up valuable ram by running in the background, while still using he same resources it uses at the forefront.
I understand that android, and Linux should manage ram well, but more often then not some app is just out there slowing my phone down. Even an hour later of not using that app, it'll still be in the background using up a lot of CPU and ram I don't have (more importantly battery). Android is great at managing smaller apps, but in my experience, it sucks at doing the same for larger apps.
Sent from my Desire HD using xda app-developers app
I don't use automatic task killers, those that are constantly running, but i do kill unused tasks and apps with no reason to be still running. Google services is a common example. It will launch at boot and keep running peemanently, even if you never launch a google app, google services is running, why?
A lot of apps, mostly the free ones, get revenue by reporting anonymous usage statistics (not so anonymous in some cases). So they stick a running service even if the app is never launched again (sometimes even if it isn't launched in the first place).
To sum up, killing everything is bad, but leaving everything to run free can also decrease performance. This can be observed on an android device that has been running for a long time, versus an android device that's just been reset.
some unused tasks will repeatedly rerun even if killed.
This will further decrease battery life and affect performance as resources are needed to keep restarting it.
The best way is to ignore if it takes a small portion of resources or to uninstall the app. Rooted users may disable the triggers via certain apps.
Sent from my GT-N7000 using Xparent ICS Tapatalk 2
In phones with very low RAM, this becomes a necessity.
Switching programs take up a lot of time to process unless there is a sizable free RAM
Markuzy said:
some unused tasks will repeatedly rerun even if killed.
This will further decrease battery life and affect performance as resources are needed to keep restarting it.
The best way is to ignore if it takes a small portion of resources or to uninstall the app. Rooted users may disable the triggers via certain apps.
Sent from my GT-N7000 using Xparent ICS Tapatalk 2
Click to expand...
Click to collapse
use auto run manager
it is the answer to most of every body's problems
DarthSimian said:
In phones with very low RAM, this becomes a necessity.
Switching programs take up a lot of time to process unless there is a sizable free RAM
Click to expand...
Click to collapse
if u have low RAM, please manually remove the apps!
dxppxd said:
I don't use automatic task killers, those that are constantly running, but i do kill unused tasks and apps with no reason to be still running. Google services is a common example. It will launch at boot and keep running peemanently, even if you never launch a google app, google services is running, why?
A lot of apps, mostly the free ones, get revenue by reporting anonymous usage statistics (not so anonymous in some cases). So they stick a running service even if the app is never launched again (sometimes even if it isn't launched in the first place).
To sum up, killing everything is bad, but leaving everything to run free can also decrease performance. This can be observed on an android device that has been running for a long time, versus an android device that's just been reset.
Click to expand...
Click to collapse
use autorun manager, keep it simple
dxppxd said:
I don't use automatic task killers, those that are constantly running, but i do kill unused tasks and apps with no reason to be still running. Google services is a common example. It will launch at boot and keep running peemanently, even if you never launch a google app, google services is running, why?
A lot of apps, mostly the free ones, get revenue by reporting anonymous usage statistics (not so anonymous in some cases). So they stick a running service even if the app is never launched again (sometimes even if it isn't launched in the first place).
To sum up, killing everything is bad, but leaving everything to run free can also decrease performance. This can be observed on an android device that has been running for a long time, versus an android device that's just been reset.
Click to expand...
Click to collapse
let me tell you something about google services...
when you installed your rom, you had to check two options from google services - location and another one.
if you are on stock, those options are available in settings also.
the google services are needed (you are running a google os, right?) because without it, the location feature will not work, the play store will give you headaches and not to mention, google now that needs that service like water.
if you kill that process over and over again you will not gain anything because that service will keep restarting it until you will give up. ah, you will loose a massive amount of battery if you do so
another thing, the google service is a system app. system apps have priority in resources so even if you kill now, as i said, it will restart after a few seconds because some apps that you are running are requesting that service.
as someone said here, yes, even I kill games after I stop playing, BUT, I do it from the task manager built in. Settings - Apps - Running apps etc.
1ceb0x said:
let me tell you something about google services...
when you installed your rom, you had to check two options from google services - location and another one.
if you are on stock, those options are available in settings also.
the google services are needed (you are running a google os, right?) because without it, the location feature will not work, the play store will give you headaches and not to mention, google now that needs that service like water.
if you kill that process over and over again you will not gain anything because that service will keep restarting it until you will give up. ah, you will loose a massive amount of battery if you do so
another thing, the google service is a system app. system apps have priority in resources so even if you kill now, as i said, it will restart after a few seconds because some apps that you are running are requesting that service.
as someone said here, yes, even I kill games after I stop playing, BUT, I do it from the task manager built in. Settings - Apps - Running apps etc.
Click to expand...
Click to collapse
if u dont want them to restart use, autorun manager
task killer
Well, i think a task killer is useful. It sometimes helps to speed-up the phone a bit.
snelle-eddie said:
Well, i think a task killer is useful. It sometimes helps to speed-up the phone a bit.
Click to expand...
Click to collapse
No that is wrong.....it consumes more ram it self
Sent from my One V
Normally to kill a process I use the Running Tab in Apps, If any recently opened app which I feel should be closed is open I kill it!Though I leave the google services untouched!
Stopped using Task managers and Battery saving apps long time ago!
Want to really save the juice? Try Under Clocking! and killing the bloatware(saves RAM too!)
I used to have a task killer but the more I killed apps, the slower my phone was, so I eventually ended uninstalling it.
great post. lots of usefull info!!
Instead of using a task killer to keep on eating your battery life, simply either delete the app or disable it in your system if it's a system out (eg: default browser, bloatware, etc).
https://play.google.com/store/apps/details?id=com.zomut.watchdog&feature=search_result
its good, but most android users atleaast ppl like me know which apps are usefull and which are not
cybervibin said:
its good, but most android users atleaast ppl like me know which apps are usefull and which are not
Click to expand...
Click to collapse
Assuming you are replying to me, your response is a bit ambiguous...
Don't know how many of you saw this, but I installed it last night, and it's awesome.
http://www.xda-developers.com/android/greenify-keeps-your-android-running-smoothly/
Basically, it allows you to stop apps from running in the background without disabling them. You can still run them like normal, but they don't eat up RAM when you're not. It does stop background functions, but many of the apps I see running like this don't do anything for me in the background anyway. YOU determine what runs in the background instead of your apps.
It doesn't work with system apps, these need to be moved to phone storage before Greenify can take control of them.
I've noticed a definite improvement in available memory and multitasking.
Play Store link: https://play.google.com/store/apps/..._source=xda&utm_medium=post&utm_term=download
You will spend more battery in killing those apps. ram is supposed to be filled up, the only answer to run more apps is to get more ram , not kill running apps.
Did you read the post? It's not a traditional app killer. It prevents them from running in the background at all.
Installed this a few hours ago. Definitely smoother phone, and moderately better multitasking. Been trying to find a way to get rid of pesky Facebook which uses like 25 mb of RAM just to send you push notifications and sync your calendar.
You may need to convert Facebook to a user app first. It can't do anything to system apps. I did it with mine and it's now behaving.
Sent from my Nexus 7 using Tapatalk HD
I personally believe that the main weakness of the Nexus 5 is battery life. After trying for about a week the official app of Qualcomm Snapdragon BatteryGuru (https://play.google.com/store/apps/details?id=com.xiam.snapdragon.app) without becoming satisfied (I have not found significant improvements, may have only a placebo effect), I switched to Greenify (https://play.google.com/store/apps/details?id=com.oasisfeng.greenify) with the Donation Package.
Do some of you use it? Users comments on Play Store seem excited (so I decided to try the paid version).
The paid version also allows you to hibernate the system apps, but I have not enabled this function (and would therefore be excluded almost all Google Apps), according to you should enable this option? Or rather, what are the apps that should hibernate / greenify?
I use it, and I'm pretty satisfied, you can theoretically hibernate all the apps you want, but is not good with apps need too synching like emails, chat, messenger and apps wich you have widgets, otherwise they will not work properly
Sent from my Nexus 5 using XDA Premium 4 mobile app
I'm not sure what the point of Greenify is then. If you can't greenify the apps you need, like Gmail, texts, etc., then how is battery life saved?
Han Solo 1 said:
I'm not sure what the point of Greenify is then. If you can't greenify the apps you need, like Gmail, texts, etc., then how is battery life saved?
Click to expand...
Click to collapse
geenify all the other crappily written apps that you install. if you greenify apps like gmail, you wont get your email in a timely manor. there are plenty of other apps that start up without you opening them that can be greenified.
simms22 said:
if you greenify apps like gmail, you wont get your email in a timely manor.
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Click to collapse
Have you tested that? I haven't but push notifications should wake up Gmail.
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I do NOT reply to support queries over PM. Please keep support queries to the Q&A section, so that others may benefit
stremax said:
I use it, and I'm pretty satisfied, you can theoretically hibernate all the apps you want, but is not good with apps need too synching like emails, chat, messenger and apps wich you have widgets, otherwise they will not work properly
Sent from my Nexus 5 using XDA Premium 4 mobile app
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Click to collapse
I agree that it's not good with apps with widgets on the home screen because the author of Greenify specify it, but I not agree for apps that need synchronization/notifications like emails, chat, messenger because it they use GCM (Google Cloud Messaging) they can be hibernated without lose push notifications!
I doubt only with system apps...
I have greenified quite everything that does not provide notification.
I use it for Facebook and Netflix, that helped my battery tremendously.
I used to use Greenify on my HTC One. I'd hibernate everything that wasn't 'system' and thought it was doing some good. Then I discovered that I was actually getting better battery life WITHOUT using it, so I don't really believe that it does any good.
To reiterate what others have said, I use to Greenify to hibernate any apps that aren't pushing me notifications. I'm honestly not sure if I see a huge difference in battery because it could be a number of things from changing ROMs or updating kernels, etc. But one thing for sure is that I'm actually pretty satisfied with the battery life on my N5. With the N4 I would be lucky to last me to dinner, but now I have plenty of battery to spare by the time I'm passing out in bed.
So I guess Greenify can potentially help battery life, but it's definitely not the answer to a magically longer lasting battery.
maxwarp79 said:
I personally believe that the main weakness of the Nexus 5 is battery life. After trying for about a week the official app of Qualcomm Snapdragon BatteryGuru (https://play.google.com/store/apps/details?id=com.xiam.snapdragon.app) without becoming satisfied (I have not found significant improvements, may have only a placebo effect), I switched to Greenify (https://play.google.com/store/apps/details?id=com.oasisfeng.greenify) with the Donation Package.
Do some of you use it? Users comments on Play Store seem excited (so I decided to try the paid version).
The paid version also allows you to hibernate the system apps, but I have not enabled this function (and would therefore be excluded almost all Google Apps), according to you should enable this option? Or rather, what are the apps that should hibernate / greenify?
Click to expand...
Click to collapse
Greenify is excellent. But using Greenify without knowing the cause of the problem isn't going to fix anything. Think of it as a bandaid. A bandaid for poorly written (usually intentionally) apps. Facebook comes to mind.
It won't greenify system apps without using Xposed (which doesn't work with ART). These system apps, Gmail, Chrome, Keep (I froze all the other junk Google apps), are actually pretty well behaved these days (they had huge issues in the past).
I think that with KitKat, Greenify has lost some of it's usefulness, with how aggressive KK is in killing off unused apps.
The app you should be downloading is BetterBatteryStats. Upload some logs for us, and most likely we can fix the problem for you. When the cause of the problem is determined, you can then choose the best course of action yourself.
The battery on the N5 is fine. I ran a BBS log while I was sleeping. After 6ish hours, the usage was 0.1% per hour. I would say anywhere between 0.1-0.4 is good. Wifi and mobile network, doesn't matter much if connection is solid.
anyways, greenify is not there to help battery, its there to have more free ram. but it can potentially help battery if you are running apps that open themselves and drain battery, like that aweful facebook app.
Greenify is probably one of the best apps for battery saving. It will get the most of your device and it will surely save you tons of battery life.
Greenify is created by the famous Android developers from “XDA developers”. The developers from this website are one of the best in the world and they received amazing critical acclaim from all around the world.
Back to Greenify. It is an app that has the capability to reduce the battery consumption on any Android device. Most of the manifucturers still haven’t found the correct solution for decreasing the battery consumption, most of their solutions work by automatically turning off Wi-Fi, GPS, reducing the brightness, etc. They don’t have meaningful effect on your device’s battery life.
Any Android device can do self-initiative and automatic checks about anything new in any application, especially when you install new apps or update them.
Facebook, EMail, Twitter, Google+, Whatsapp, Tango have processes that are constantly working in the background. On top of that, there are is also a great amount of software already installed by the manufacturer of the device (bloatware), as well as the provider whose services you use. Most of these applications are constantly open, consuming the phone’s resources (CPU, RAM), spending your 3G/4G internet, and they are biggest culprits for excessive daytime consumption of your battery.
Read More ...Reviewappandroid.com
The Greenify Donation add on is well worth the few dollars it costs as well. If you get the add on then go into the settings, it makes system app hibernation and deep hibernation options available for use. Greenify is the one app that truly saves battery without freezing or disabling the app. There is no performance loss or app failure when putting apps into hibernation. One thing to keep in mind is that it is regularly getting updated to accommodate new devices and Android updates. Always back up your current version because some updates may not auto hibernate as well as the previous version etc.
If you get Greenify and GSam with the paid add on you will be able to greatly reduce wasted battery drain and quickly identify wakelock services
Sent from my HTC One using Xparent Gray Tapatalk 2
What do you think about "Hibernation Manager "? What is better?
When you-they say that task killers are bad, you also mean the stock task killer every phone have? I am talking about the one you enable it by long pressing the back ( or other ) key and then just press clean to delete all running apps.
Every app we open it must be killed/hibernated in order not to consume ram and battery. So we must put ALL the programs in greenify hibernation mode? :S
I am a little confused.
I have an Oppo Find 7a.. Should i use greenify or system battery/app management? And how?
Also i've installed Gsam Battery Monitor, but it doesnt seem to work well.. Sometimes timer reset, other time the app closes itself..
Also i noticed that youtube app doesn't display on greenify apps. Why?
Yes when people say that appkillers should not be used they mean also the android default app killing software. And they are right when they are saying that. Installing extra app killing software to your phone just consumes memory and battery life
And what about greenify?
I noticed that when i open the cm browser, also facebook opens! There is a wake-up path called << AttributionIdProvider>> which i cut it off..
Also there is another wake-up path for facebook something like this << lollipop update service >>.. What is it??
Should i cut it off also?
lazostat said:
And what about greenify?
I noticed that when i open the cm browser, also facebook opens! There is a wake-up path called << AttributionIdProvider>> which i cut it off..
Also there is another wake-up path for facebook something like this << lollipop update service >>.. What is it??
Should i cut it off also?
Click to expand...
Click to collapse
I have not used Greenify so I cannot say anything about the features. To be honest, looking at the apps description I cannot see that it does anything special but prevent the apps from behaving the way they are designed to. Some individual apps may be poorly designed or implemented and may consume more battery life than necessary. In most of the cases doing this kind of hibernating will not help at all.
Most users say that greenify works very well.. I am surprised that you never heard of this program.
And what about battery monitor program? Should i have it ran all time?
lazostat said:
Most users say that greenify works very well.. I am surprised that you never heard of this program.
And what about battery monitor program? Should i have it ran all time?
Click to expand...
Click to collapse
The purpose of battery monitor apps is to give you detailed information about battery consumption. You for example identify if some individual app is consuming too much battery for some reason. If you do not do anything with this information, there is no reason to keep the monitor app running.
The default closing of apps in the app drawer does not kill the app properly. Greenify completely stops the app via the app info or with root. All apps have to be hibernated in order to not consume battery but you should not hibernate apps that you want to have running in the background like whatsapp, hangouts, vpn, apps whose widgets you use etc. Youtube can not be hibernated because it is a preinstalled system app and these can only be hibernated if you pay for the Greenify donation package(which you absolutely should). For the Battery info app it depends on how it measures your battery usage. Try to hibernate it if it doest measure your battery stats remove it from the list again.
The more ram uses a program process background, the more battery it drains?
lazostat said:
The more ram uses a program process background, the more battery it drains?
Click to expand...
Click to collapse
Not necessarily. But it's a good indicator. The most battery is consumed by internet traffic and the CPU/GPU when the display isn't on.