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...
Hi Everyone,
I have been using Atrix 2 for past 2 years and never ever got such battery backup in last two years, so I thought of starting this thread so that others can get better battery life.
I have tried lots of tricks, apps, tweaks for better battery life but the following settings helped me to get more than 30 hours of backup on daily basis.
As I am writing this thread, my phone is on battery since 1 day 14 hours with 4 hours 6 mins screen on time, voice calls 1 hour 49 mins, wifi on 8 hours:laugh:!!!
I have noticed that Google Play services and Play store are the culprits behind the wakelocks that cause battery drain even when your phone is idle! So I decided to freeze them as per my convenience I unfreeze them and its been so easy thanks to Titanium Backups widget.
Just follow the below mentioned steps:
1.You must have a rooted phone.
2.Install Titanium Backup and Greenify (Greenify is used for hibernating the apps which stops them from running in background. Greenify the apps as per your need))
3. Convert Google play services to user app using TB.
4.Place a TB widget (Action widget) and select the action "Freeze/Defrost/Launch an app", select Google play services and you are done. Repeat the same process for Play store.(Note that you will not get any Gmail/FB notifications while freezed).
Now you can use the Google play services/ play store when needed, you have to just tap on the widget to freeze/unfreeze, and take my word you will be more than happy with battery backup you will get after doing these small tricks.
Enjoy!!!
Atrix2dBeast said:
Hi Everyone,
I have been using Atrix 2 for past 2 years and never ever got such battery backup in last two years, so I thought of starting this thread so that others can get better battery life.
I have lots of tricks, apps, tweaks for better battery life but the following settings helped me to get more than 30 hours of backup on daily basis.
As I am writing this thread, my phone is on battery since 1 day 14 hours with 4 hours 6 mins screen on time, voice calls 1 hour 49 mins, wifi on 8 hours:laugh:!!!
I have noticed that Google Play services and Play store are the culprits behind the wakelocks that cause battery drain even when your phone is idle! So I decided to freeze them as per my convenience I unfreeze them and its been so easy thanks to Titanium Backups widget.
Just follow the below mentioned steps:
1.You must have a rooted phone.
2.Install Titanium Backup and Greenify (Greenify is used for hibernating the apps which stops them from running in background. Greenify the apps as per your need))
3. Convert Google play services to user app using TB.
4.Place a TB widget (Action widget) and select the action "Freeze/Defrost/Launch an app", select Google play services and you are done. Repeat the same process for Play store.(Note that you will not get any Gmail/FB notifications while freezed).
Now you can use the Google play services/ play store when needed, you have to just tap on the widget to freeze/unfreeze, and take my word you will be more than happy with battery backup you will get after doing these small tricks.
Enjoy!!!
Click to expand...
Click to collapse
Are you running a custom ROM or stock? Thanks for the tips!
Its stock...JB leak 3!
But I have tried this on Slimkat too.
Sent from my MB865 using XDA Free mobile app
I don't use gapps at all, I have noticed it is draining battery a very long time ago. Actually, any background app which uses the internet connection is a source of a trouble. WhatsApp is also eating battery like a hog. Ideally, there should be no background apps at all, except the system ones.
I use Greenify to freeze WhatsApp. So new messages are coming only when I open WhatsApp, like emails. This gives me extra 2-3 hours of battery time.
timjosten said:
I don't use gapps at all, I have noticed it is draining battery a very long time ago. Actually, any background app which uses the internet connection is a source of a trouble. WhatsApp is also eating battery like a hog. Ideally, there should be no background apps at all, except the system ones.
I use Greenify to freeze WhatsApp. So new messages are coming only when I open WhatsApp, like emails. This gives me extra 2-3 hours of battery time.
Click to expand...
Click to collapse
Have you tried this?
http://forum.xda-developers.com/showthread.php?t=2357417