Database Users

Please delete.

Deleted......

"8. Frequently use the native task manager to free memory.. Long press on the big button to access task manager."
This is wrong advice. This actually increases battery use. The frequently used applications stay in memory so that they will not be loaded again when needed. If you purge the memory like you recommend, these apps will have to be reloaded every time, which significantly increases battery usage.

Deleted......

jangomango said:
No doing this once in a while will kill off any apps you thought were closed.. Quite often I exit a game to find its still there hogging memory.
But thanks for the criticism.
Click to expand...
Click to collapse
It's not wasting memory, it's just sitting there doing nothing in case you launch it soon again. If that memory is needed by another program, Android releases it immediately.
Try this yourself. Launch a game, then exit. You'll see the game still in memory. Then launch other apps and games. You'll see that the first game is no longer in memory, because Android saw that that part of the memory is needed elsewhere. It's all automatic and it works well. There's no need to fiddle with it. As I said, fiddling with it actually increases battery usage, because frequently used apps have to be reloaded every single time, instead of being called back from memory.

Deleted......

aydc said:
It's not wasting memory, it's just sitting there doing nothing in case you launch it soon again. If that memory is needed by another program, Android releases it immediately.
Try this yourself. Launch a game, then exit. You'll see the game still in memory. Then launch other apps and games. You'll see that the first game is no longer in memory, because Android saw that that part of the memory is needed elsewhere. It's all automatic and it works well. There's no need to fiddle with it. As I said, fiddling with it actually increases battery usage, because frequently used apps have to be reloaded every single time, instead of being called back from memory.
Click to expand...
Click to collapse
I have to disagree with this. Quite often I have noticed that after playing some game my battery still keeps draining like hell.
I know that Android is SUPPOSED to work as you said it would, but there are quite a lot of rogue apps which don't behave like that.
So unless you are 100% sure that your apps are not rogue apps in any possible situation I also have to suggest to use the "kill all" once in a while.
I don't do it often, maybe twice a day but it helps.

Deleted.....

I have done most of the things you mentioned, but my battery is still appalling. I am using VillainROM 1.4, KF2. I really want to fix this, I heard some people are struggling to get 12 hours from their phone, I am one of those.

twitceh said:
I have done most of the things you mentioned, but my battery is still appalling. I am using VillainROM 1.4, KF2. I really want to fix this, I heard some people are struggling to get 12 hours from their phone, I am one of those.
Click to expand...
Click to collapse
I agree, yesterday I barely used my phone. 1 hour and 40 minutes of screen on time, 3G, Sync, Whatsapping most of the time that I used it, wifi, too. Downloaded a few apps maybe 10 minutes of games. It was at 40% when I went to bed 15 hours later. I barely touched it! LOL.
I don't mind though, this is a FANTASTIC phone. I wouldn't change it for any other phone at the moment. I will probably get an extended battery case from Samsung in the near future. It's a case AND a battery ALL IN ONE! Woopie! lol.

twitceh said:
I have done most of the things you mentioned, but my battery is still appalling. I am using VillainROM 1.4, KF2. I really want to fix this, I heard some people are struggling to get 12 hours from their phone, I am one of those.
Click to expand...
Click to collapse
I am starting to believe that it is a hardware fault..If lucky it could be because of the battery. You could try to order another battery and see how it goes.
If not so lucky then its something else in the phone which is almost impossible to fix at home.

jangomango said:
I appreciate you clogging my new thread up with your opinion.. Nice one..
Click to expand...
Click to collapse
I have no personal problem with you, but if you open up a thread for newcomers, you shouldn't give misleading information. Thinking task killers improve battery is a telltale sign of noobness.
For newcomers who really want to learn about memory management in Android and the truth about task killers, I recommend these two articles:
http://geekfor.me/faq/you-shouldnt-be-using-a-task-killer-with-android/
http://www.droid-den.com/android-guides/android-guide-should-i-use-a-task-killer

jangomango said:
FFS.. my point is.. Some apps you only use once in a blue moon like Games. You dont need these still sitting there..
I appreciate you clogging my new thread up with your opinion.. Nice one..
Plus I find it makes my phone snappier after a good purge.. And FYI I still get over 1 and a half days from the battery..
Is there any chance you can get off my **** now?
Click to expand...
Click to collapse
Pretty sure with an attitude like that you'd be lucky to have someone on your ****.

My simple solution. Buy juice defender ultimate. Its cheap only less than 9 dollars. Set it to extreme and configure each app. Then go to market and search 'gothic'. Select the darkest and most plain black wallpaper. You are done! I am getting 2 days on stock rom with this setup. With about 20% of the time surfing the net via HSDPA or 3g.
Sent from my GT-I9100 using XDA Premium App

aydc said:
I have no personal problem with you, but if you open up a thread for newcomers, you shouldn't give misleading information. Thinking task killers improve battery is a telltale sign of noobness.
For newcomers who really want to learn about memory management in Android and the truth about task killers, I recommend these two articles:
http://geekfor.me/faq/you-shouldnt-be-using-a-task-killer-with-android/
http://www.droid-den.com/android-guides/android-guide-should-i-use-a-task-killer
Click to expand...
Click to collapse
I'd have to agree. Task killers are generally a bad idea.
Sure, there are poorly coded apps that stay in memory and use up CPU cycles. Those are apps that needs to be closed via task killers. But is that really the solution?
What you should do is NOT use such apps. If you do continue to use those apps, you're just supporting the developer for his poor coding. In that case, you're on your own.
OP: Try not to get too antagonistic. This is after all, a discussion forum.
Here's an analogy just for fun....
General consensus: You don't need a case for your phone.
Argument: You do need a case for your phone because SOME phones have antennae issues and a case will alleviate those issues.
Weird solution: Buy those phones wtih antennae issues and then also buy a case.
Real solution: Don't buy those phones with antennae issues! (wink wink)

ohyeahar said:
I'd have to agree. Task killers are generally a bad idea.
Sure, there are poorly coded apps that stay in memory and use up CPU cycles. Those are apps that needs to be closed via task killers. But is that really the solution?
What you should do is NOT use such apps. If you do continue to use those apps, you're just supporting the developer for his poor coding. In that case, you're on your own.
OP: Try not to get too antagonistic. This is after all, a discussion forum.
Here's an analogy just for fun....
General consensus: You don't need a case for your phone.
Argument: You do need a case for your phone because SOME phones have antennae issues and a case will alleviate those issues.
Weird solution: Buy those phones wtih antennae issues and then also buy a case.
Real solution: Don't buy those phones with antennae issues! (wink wink)
Click to expand...
Click to collapse
+1 to this, task manager was a good idea in the old days (eclair & froyo), but gingerbread does a great job in memory management, there is no need for "task management kill" everytime you exit. Although I am a bit conservative on "frequently killing apps in gingerbread will actually decrease your battery life", but certainly, doing so will not improve it.

Using the 'Clear Memory' feature in Task Manager will stop and kill everything. Some widgets, apps will stop work. So that feature is extremely kiddish imo.
But using ATK won't do it as it has an Ignore list, if its set up properly then its the best.
Regards.
Sent from GT-I9100

jangomango said:
With all gripes over battery life, I thought it would be a good idea to create a list of steps for newcomers that will help make battery life better.
With these steps I am getting well over 24 hours.
Feel free to add some and I will update the OP.
1. Flash a rom.. I'm using Lightening Rom 2.0 with KG1
2. Flash a kernel.. I use Chainfires KG1
3. Use Titanium backup to freeze any crap you dont need. There is a guide on here already about this.
4. Disable fast dormancy.. *#*#9900#*#*
5. Wifi Sleep Policy set this to Screen Off.. Settings>Wireless & Networks>WiFi Networks>Menu>Advanced>WiFi Sleep Policy
6. Manage your radios.. Use the power widget to turn off BlueTooth,WiFi, GPS, even 3G when not needed.
7. Screen brightness.. Set this as low as you can whilst still being readable.
8. Frequently use the native task manager to free memory.. Long press on the big button to access task manager.
9. Monitor what apps are using battery.. Menu>Settings>About Phone>Battery Usage
10. Use a static wallpaper.. Live wallpapers are nice but draw more power than a still image. Dark backgrounds are best.
11. Full overnight charge with phone off.. I found this makes a difference.
12. Change the frequency at which your mail and widgets update. Instead of 30 minutes or whatever try 1 hour.
13. Turn off AutoSync when not needed. Menu>Settings>Accounts &Sync. Note.. This will do what it says and stop any app or widget syncing though..
Click to expand...
Click to collapse
I'll only comment on the points I can share my opinion with:
4. didn't change a damn thing for me regarding the battery, it just made switching betweens 3g and H slower.
5. will try that, but won't it turn wifi off when the screen is off thus disabling any sync via wifi when screen is off?
6. common sense not to leave everything on all the time
7. auto brightness does a good job for me, a mate uses lowest brightness and has no advantages besides having problems reading from the screen sometimes
8. just use it to end apps/games that won't stop after using them like KiesAir
10. true
11. doesn't make a difference
12. sure but whoever needs (e.g. for work) push (like me) will have to skip that
13. see 12.
fenguinpower said:
My simple solution. Buy juice defender ultimate. Its cheap only less than 9 dollars. Set it to extreme and configure each app. Then go to market and search 'gothic'. Select the darkest and most plain black wallpaper. You are done! I am getting 2 days on stock rom with this setup. With about 20% of the time surfing the net via HSDPA or 3g.
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
juice defender is my last option to squeeze more time out of my phone. still with my general usage I get around 36h our of one charge, mostly between 24h and 48h depending on how much I use it AND how good the reception is (better reception -> more battery life)

OP deleted.. This was supposed to be a usefull guide for newcomers but soon descended into a viscious disection of all my points. **** you all. Twats.

jangomango said:
OP deleted.. This was supposed to be a usefull guide for newcomers but soon descended into a viscious disection of all my points. **** you all. Twats.
Click to expand...
Click to collapse
You don't like healthy debate? These guys were quite polite, you were the one who spat his dummy out.

**** you aswell you **** jockey.

[BATTERY] My battery setup is doing miracles

I've been researching extensively how to improve my battery life on my Android phones and I believe I've found an amazing setup for the Atrix. My phone has been disconnected for 3:15 and I'm at 91% right now with moderate use. It used to burn about 5% an hour before with NO use. Yesterday, it lasted 14 hours and I still had 20% left when I went to bed.
Aura 1.1.3 Debloat #7 ROM
This ROM seems to be the lightest one I've tested. It's only 150 MB and very fast.
SetCPU
I set up a profile to underclock the processor all the way to 216 MHz when the screen is off. The processor is running at 1.1 GHz max. I haven't tested underclocking it to 1 GHz or 900 MHz. I'm sure that would improve the battery life even further and not have a huge impact on performance.
Battery mode (Android settings)
Obviously, it's on maximum battery saver.
General settings
I set the screen timeout to 30 seconds. Maybe 15 seconds is too short for you as it is for me, but that would save some more juice.
Every other battery-killing feature is on, like wifi, GPS and sync. I don't use task killers anymore and found out that my battery life actually improved a lot after I ditched Advanced Task Killer.
I just wanted to share this with the community. I hope it helps you. Any suggestions to improve it even further are very welcome.

Yeah task killers are pretty much useless, watchdog is a wonderful alternative.
Sent from my MB860 using xda premium

Interesting and thanks for sharing, but...
I can get almost the same results by using any other ROM without SetCPU and just using Max Battery Savings but I'm not interested on that setup because I need to have PUSH email all day.
Maximum Battery Savings makes push emails useless, and for a device that's supposed to be "connected" push mail is a must (at least for me).
Unfortunately, push mail is what kills batteries, specially on 3G/4G.
Cheers!
Rayan
Sent from my Atrix using Tapatalk

My phone was maximum battery savings one time for some reason. I didn't do it. But for some reason, it was seriously draininng my battery bad. I think i was on 2.2/froyo before i unlocked so i don't know if that had anything to do with it. I do know, i haven't had reason to try it intentionally since my battery is great overall. It does help since atnt turned up the juice on the 3g and called it 4g reception has been very satisfactory lately helping power consumption by not having to look for a signal as often.
I voided my warranty.

pukemon said:
My phone was maximum battery savings one time for some reason. I didn't do it. But for some reason, it was seriously draininng my battery bad. I think i was on 2.2/froyo before i unlocked so i don't know if that had anything to do with it. I do know, i haven't had reason to try it intentionally since my battery is great overall. It does help since atnt turned up the juice on the 3g and called it 4g reception has been very satisfactory lately helping power consumption by not having to look for a signal as often.
I voided my warranty.
Click to expand...
Click to collapse
Exactly! When the phone switches back and forth 2G and 3G/4G it drains a lot of power. So it too depends on the zone we are in at the moment and that's one of the reason we see a lot of different results among users. Of course, phone and app/game/internet usage style also counts.
Cheers!

Rayan said:
Exactly! When the phone switches back and forth 2G and 3G/4G it drains a lot of power. So it too depends on the zone we are in at the moment and that's one of the reason we see a lot of different results among users. Of course, phone and app/game/internet usage style also counts.
Cheers!
Click to expand...
Click to collapse
I think a lot of people don't realize that terrible reception can account for terrible battery. Often we don't get that feedback when people are whining about battery. Also, lots of the people whining about battery play lots of games, and some of those games that put the gpu through it paces suck up juice faster, but the user is not realistic about that either and expects battery life of a phone that is used lightly.
I voided my warranty.

Yay for undervolting

not "killing" aka "ending" or possibly more familiar "closing" your running apps.. that's like, like if you log into your windows box and you don't have the "X" buttons on the window caption bar.. you just leave everything that you run running until you shutdown..
before you even try to retort, obviously there are exceptions. in windows explorer.exe runs endlessly until you shutdown. on your android device that's the equivalent of your preferred launcher.
what else.. msn? the equivalent of your favorite sms app. facebook and notifications? similar to that browser you keep open with 5 or 6 tabs swiftly consuming your precious processor.
i'm not sure an argument even exists. "task killers" has "killers" in the name which naturally has negative connotations. call it a task manager. windows has a task manager.
other than that nice tips

I am stock everything.. even launcher
3hrs 14min screen on time
~12ish hours off the charger
still says 50% battery. which means 50%-59% on motoblur
pretty darn good eh?

Don't understand the point you were trying to make. Are you saying killers/manager is worthwhile or were you trying make a worthless point about the names?
Anyways task managers are worthless. A good comparison to make are mid/high end laptops and their ram. On a forum I frequent, users were comparing their battery runtime with similar setups. Some were getting extra ~hour or so than others who couldn't figure out why they were getting shafted on battery. Some people don't realize that 4 dimms of ram consume twice the power of 2 dimms of ram no matter the gb of x amount of ram. Thus its better to have 2 dimms of 4gb each than it is 4 dimms of 2gb. The ram consumes power whether you use it or not if it is connected. The 1gb of ram in the atrix consumes the same amount of juice whether its holding 300 mb of data or 800 mb of data. Whether the cpu is computing with something active or not in the ram is what's relevant. Task managers only help when you have a rogue app. Id rather uninstall it then deal with a poorly written app.
I voided my warranty.

aaron.a said:
not "killing" aka "ending" or possibly more familiar "closing" your running apps.. that's like, like if you log into your windows box and you don't have the "X" buttons on the window caption bar.. you just leave everything that you run running until you shutdown..
before you even try to retort, obviously there are exceptions. in windows explorer.exe runs endlessly until you shutdown. on your android device that's the equivalent of your preferred launcher.
what else.. msn? the equivalent of your favorite sms app. facebook and notifications? similar to that browser you keep open with 5 or 6 tabs swiftly consuming your precious processor.
i'm not sure an argument even exists. "task killers" has "killers" in the name which naturally has negative connotations. call it a task manager. windows has a task manager.
other than that nice tips
Click to expand...
Click to collapse
Although that may be true for windows computers it its not with Linux which Android is based on. I know that there are virtual machines and all that jazz for the apps but the core system is all Linux and it's even optimized for battery life so when you press the home button yeah that is still running in the background but if you ever need to use that ram it either clears that app from the ram or (based on the app) kills its altogether. And like someone else said ram uses the same amount of power weather it's being used or not.
Also if you're using well written apps then they shouldn't be using any CPU in the background.
If there is some app that's hogging CPU in the background then you need to just uninstall it. Task killers especially auto task killers are actually using a lot of your CPU constantly checking for apps that are using too much ram but Android already does that automatically.
tl;dr
Linux can manage its own ram without you and for the love of God, stop using task killers they're making everything worse.

i was defending their usefulness in general not so much their effectiveness in battery preservation. probably the wrong thread. if any its minimal.
i'm talking about active task management tho. when i'm done browsing the web and want to fire up pewpew for some old school polygonal destruction i kill the browser entirely. i guess its really based on the type of user you are whether or not benefit is to be had. some people are active while others are standby

Rayan said:
Exactly! When the phone switches back and forth 2G and 3G/4G it drains a lot of power. So it too depends on the zone we are in at the moment and that's one of the reason we see a lot of different results among users. Of course, phone and app/game/internet usage style also counts.
Cheers!
Click to expand...
Click to collapse
Sure, it depends on how you use the phone and the strength of the signal you're getting in your area. Would you guys just turn data off in bad signal areas to save battery? How would you handle that?

This is what happened. My battery is doing amazing. I changed the battery mode to Performance during the day and I still have 65% after 12 hours. Not bad. It's about 2.9% an hour. The display was used for a total of 2 hours and 10 minutes.

Battery life posts are useless unless we have some kind of standards during testing.
Like setup your system and then a 15min phone call, 1 hour of video/ ect.. same call.. same video same ect .. ran on each battery setup will give a truer idea on what saves battery the best.
This whole .. it was off charger for 5.33 hours and I used it alot and its at xx% doesn't hardly mean anything.. how much use is alot? How much is little?
Need some kind of same standard test that can be run..

nice to know

Why do custom roms get worse life on the ATRIX? Im new to this phone. (Used to be a HTC only guy)
Sent from my Atrix 4G

andrewxu said:
Why do custom roms get worse life on the ATRIX? Im new to this phone. (Used to be a HTC only guy)
Sent from my Atrix 4G
Click to expand...
Click to collapse
Mostly its not about the ROMs you use, but the Kernel or Baseband (Radio) firmware.
At least for me it's been much better than with the original ROM.
Also you must take into consideration other factors like type of use, voice/data signal quality on your area, and many other factors.
Cheers!
Rayan

[MOD][Request] Improve your battery life tenfold

This was on the portal today. It's a Droid Incredible mod that apparently improves battery life dramatically. OP has a full guide in place with info on what each tweak does. Galaxy note devs, amazing as they are, may or may not be using these (or similar) tweaks for the Note. In any case, FYI
http://forum.xda-developers.com/showthread.php?t=1621808

More snake oil... Improving your battery life tenfold with sysctl.conf changes when the radio dominates idle battery usage and screen dominates screen-on battery usage = bull****.
Maybe you can improve it a little - but tenfold? Bull****, and a ridiculously exaggerated claim like that makes me distrust any of the changes made.
I know what the prime power eaters on this device are, and sysctl tweaks aren't going to change those... Changing them requires major architectural rework of the kernel.

Entropy512 said:
More snake oil... Improving your battery life tenfold with sysctl.conf changes when the radio dominates idle battery usage and screen dominates screen-on battery usage = bull****.
Maybe you can improve it a little - but tenfold? Bull****, and a ridiculously exaggerated claim like that makes me distrust any of the changes made.
I know what the prime power eaters on this device are, and sysctl tweaks aren't going to change those... Changing them requires major architectural rework of the kernel.
Click to expand...
Click to collapse
well then... Get to work! Aren't you one if the open source kernel developers? Just kidding btw
Sent from my superior GT-N7000 using Tapatalk

Considering the vat majority of my battery usage is screen drain I doubt very much this would do much for me.
I dare say the same could be said for all note users.
Sent from my GT-N7000 using Tapatalk 2

Entropy512 said:
I know what the prime power eaters on this device are, and sysctl tweaks aren't going to change those... Changing them requires major architectural rework of the kernel.
Click to expand...
Click to collapse
That's what I thought. You guys know the device inside out, so it makes sense to bring things like this to your attention.
Incidentally, the guy says he gets 50+ hours on a single charge. My Note gives me 48+ hours (with little wi-fi though, and at 1200 MHz), so it's not that we have bad battery life.

Overclocking, init.d changes, etc are all extremely irrelevant in terms of battery use.
The main battery hog for any modern phone in the past 2 years has and always will be the screen (of course unless if you're using something like the Xperia Mini).

I'm more than happy with the Note's battery life to be honest. It's certainly better than the Sensation and One X I had previously.
The only way we will see much of an improvement will be if they make a phone the size of the Note with a 3.5" visible screen. lol

Or a 10000 mA battery.
Sent from my superior GT-N7000 using Tapatalk

bloodyhippo said:
That's what I thought. You guys know the device inside out, so it makes sense to bring things like this to your attention.
Incidentally, the guy says he gets 50+ hours on a single charge. My Note gives me 48+ hours (with little wi-fi though, and at 1200 MHz), so it's not that we have bad battery life.
Click to expand...
Click to collapse
You must barely use yours at all.
I'm lucky to get 10 hours out of mine.
Sent from my GT-N7000 using Tapatalk 2

Dont care much about battery life if you are using smartphone with its big screen, alot of connection.
There are two solution, one is spare battery alway on pocket, other complete solution is change to cheap feature phone with 30 days battery life.

senectus said:
You must barely use yours at all.
I'm lucky to get 10 hours out of mine.
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
It's mostly phone calls, the occasional game, some music. Very little wi-fi though, and data only when I need it. Brightness set to auto except when outside (where it's set to max). The fact that I sleep atleast once in those 48 hours helps the battery life a lot

bloodyhippo said:
That's what I thought. You guys know the device inside out, so it makes sense to bring things like this to your attention.
Incidentally, the guy says he gets 50+ hours on a single charge. My Note gives me 48+ hours (with little wi-fi though, and at 1200 MHz), so it's not that we have bad battery life.
Click to expand...
Click to collapse
Do you use the phone as a paper weight ??

Entropy512 said:
I know what the prime power eaters on this device are, and sysctl tweaks aren't going to change those... Changing them requires major architectural rework of the kernel.
Click to expand...
Click to collapse
I finished completely charging my Galaxy Note at 02:00 BST. After I got up at 07:00 BST, the battery level was at 86%. I switched off the Wi-Fi, force stopped Skype and WhatsApp (these are the only 2 apps I have installed so far!) before plugging the device to charge.
Background data and Auto-sync in Accounts and sync was turned off ages ago.
Before posting this message, I switched on the Wi-Fi to chat with my cousin via WhatsApp for 20 minutes. Now the Wi-Fi and WhatsApp are inactive. At the moment of typing this message, my battery level is 42%.
I have tried force stopping some of the pre-installed apps such as AccuWeather, ApMobile etc but the effort has been futile. I am aware that I need to root my device in order to get rid of the bloatwares. I am having another issue with the Auto brightness feature which I have described in another thread. I have not ventured into the realm of rooting until now because I may decide to send my device to Samsung's service centre.
I cannot figure out for myself whether my battery or my device itself has a flaw or whether it is normal and there is nothing wrong.
I will eventually pose my queries pertaining to rooting and relevant subjects. I am a novice in the field of mobile computing and I am here to learn from you all.
Thank you all for your continued patience.

Your device has a flaw, that flaw is called Skype.
Skype is a notorious battery drainer.

Coolkriss said:
Do you use the phone as a paper weight ??
Click to expand...
Click to collapse
+111111111
Sent from my GT-N7000 using xda premium

Entropy512 said:
Your device has a flaw, that flaw is called Skype.
Skype is a notorious battery drainer.
Click to expand...
Click to collapse
Thank you for your prompt response Entropy512.
After I finish using Skype and subsequently signing out, I force stop it from Settings > Applications > Manage applications, either from Downloaded or All.
I use Skype on my phone to communicate with my sister when I am away from my computer at home, especially when I am at university. Thus, I am compelled to use it.
Do you reckon force stop is turning out futile? Should I get a third party "task manager" because the default/pre-installed Task manager seems incompetent.
Please do keep your expert opinions, suggestions and advise coming.

YLNdroid said:
Thank you for your prompt response Entropy512.
After I finish using Skype and subsequently signing out, I force stop it from Settings > Applications > Manage applications, either from Downloaded or All.
I use Skype on my phone to communicate with my sister when I am away from my computer at home, especially when I am at university. Thus, I am compelled to use it.
Do you reckon force stop is turning out futile? Should I get a third party "task manager" because the default/pre-installed Task manager seems incompetent.
Please do keep your expert opinions, suggestions and advise coming.
Click to expand...
Click to collapse
Install BetterBatteryStats (free if download from xda). Check for wakelock to see what app is keeping your device awake.
Just as a note, there is a bug in the OS for our Note if you use the USB OTG cable. Once plugged in with any USB storage device, the unmounter process would cause the device to unable to sleep, thus causing battery drain. The only way out is to reboot.
Sent from my GT-N7000 using Tapatalk 2

usb storage unmounter
soory is this usb storage unmounter wakelock bug in all the galaxy note device?
is there a solution
or is there any app that can terminate and close the wakelocks?
i know battery stat but i want an app to kill the wakelocks and system process

Android Task Killers Explained: What They Do and Why You Shouldn’t Use

Android task killers improve your phone's performance while also boosting battery life—or at least that's the much-debated promise. Here's a look at how task killers actually work, when you should (or shouldn't) use them, and what you can do instead.
A task killer is an app from which you can (sometimes automatically) force other apps to quit, the hope being that the fewer apps you have running in the background, the better your Android's performance and battery life will be. Not everyone agrees with this premise, though. The argument about whether task killers are effective rages all over the internet: Android forums are full of threads with constant bickering and conflicting anecdotal experience, making it difficult for most users to make sense of the situation.
Below, I'm going to dig into the truth about Android task killers: that apart from maybe some older phones, Android manages tasks fairly well on its own, and how task killers present quite a few problems. I'll also take a look at the rare occasions when they're useful, and offer some alternatives you should try to improve your phone's performance and battery-life quirks.
Before we dive in, here's a quick overview of how Android handles process management by default.
How Android Manages Processes
In Android, processes and Applications are two different things. An app can stay "running" in the background without any processes eating up your phone's resources. Android keeps the app in its memory so it launches more quickly and returns to its prior state. When your phone runs out of memory, Android will automatically start killing tasks on its own, starting with ones that you haven't used in awhile.
The problem is that Android uses RAM differently than, say, Windows. On Android, having your RAM nearly full is a good thing. It means that when you relaunch an app you've previously opened, the app launches quickly and returns to its previous state. So while Android actually uses RAM efficiently, most users see that their RAM is full and assume that's what's slowing down their phone. In reality, your CPU—which is only used by apps that are actually active—is almost always the bottleneck.
Why Task Killers Are (Usually) Bad News
Apps like Advanced Task Killer, the most po****r task killer in the Market, act on the incorrect assumption that freeing up memory on an Android device is a good thing. When launched, it presents you with a list of "running" apps and the option to kill as many as you want. You can also hit the Menu button to access a more detailed "Services" view, that lists exactly which parts of each application are "running", how much memory they take up, and how much free memory is available on your phone. This set-up implies that the goal of killing these apps is to free up memory. Nowhere on the list does it mention the number of CPU cycles each app is consuming, only the memory you'll free by killing it. As we've learned, full memory is not a bad thing—we want to watch out for the CPU, the resource that actually slows down your phone and drains your battery life.
Thus, killing all but the essential apps (or telling Android to kill apps more aggressively with the "autokill" feature) is generally unnecessary. Furthermore, it's actually possible that this will worsen your phone's performance and battery life. Whether you're manually killing apps all the time or telling the task killer to aggressively remove apps from your memory, you're actually using CPU cycles when you otherwise wouldn't—killing apps that aren't doing anything in the first place.
In fact, some of the processes related to those apps will actually start right back up, further draining your CPU. If they don't, killing those processes can cause other sorts of problems—alarms don't go off, you don't receive text messages, or other related apps may force close without warning. All in all, you're usually better off letting your phone work as intended—especially if you're more of a casual user. In these instances, a task killer causes more problems than it solves.
What You Should Do Instead
That said, not all apps are created equal. Many of you have used task killers in the past and actually found that after freeing up memory, your phone works a bit better. It's more likely that this is because you've killed a bad app—one that was poorly coded, and (for example) keeps trying to connect to the internet even when it shouldn't. Any performance increase you experience is more likely because you killed the right app, not because you freed up loads of memory (or, in many cases, it's just placebo). Instead of killing all those apps, find out which ones are actually causing the problems. If you really know what you're doing, you may benefit from using a task killer to stop the one or two inefficient-but-loved apps on your phone.
Note, however, that this is still a contested notion. A lot of developers (including ROM builder extraordinaire, Cyanogen) will not even look at your bug reports if you're using a task killer. In this humble blogger's opinion, your best bet is to stay away from regular task killer usage entirely. If you absolutely have to have that one battery-killing app on your phone, though, kill away—just be aware that when you experience a recurring Android bug later on, the task killer may be at fault. Of course, you can just stop using it to determine whether that is or isn't the case.
With task killers firmly in the better-off-without box, there are still a number of other things you can do to fill the void, improving your performance and battery life
Watch for Runaway Processes: Previously mentioned Watchdog is a slightly different kind of task killer, in the sense that instead of telling you your phone's out of memory and it's time to go on a task killing spree, it alerts you when the occasional app starts eating up CPU for no reason. You can then kill the app with Watchdog and get on with your day (though honestly, at that point, I usually just reboot my phone). If it happens often with the same app, however, you may want to move on to the next step.
Uninstall Bad Apps: Worse than the occasional, one-time runaway app is the poorly coded, always-eating-CPU app. If you find (with Watchdog or through some other method) that a particular app seems to drain CPU and battery life whenever it's running, confirm your suspicions by uninstalling it and seeing what happens. If an app is causing problems on your phone, you're probably better off without it.
Root Your Phone: We advocate rooting Android devices a lot at Lifehacker, but that's because it really is as useful as everyone says it is. You can over- and underclock your phone with SetCPU, install custom ROMs that noticeably improve performance and battery life, and use the ever-useful, crapware-thwarting Autostarts utility to stop apps from starting up on your phone in the first place. Honestly, with one-click rooting apps like previously mentioned Universal Androot available for most phones, rooting only takes a few minutes to do, and you'll be much happier for it.
Update: Many of you also mentioned the root-only app Titanium Backup, which will help you get rid of the pre-installed crapware that comes on most phones, which are one of the worst offenders of phone lag. Thanks to all of you that sent this in!
Seriously, Use the Power Control Widget: This may sound ridiculously obvious, but if you aren't already using some form of the Power Control widget, you should. The things that drain the most battery on any smartphone are Wi-Fi, Bluetooth, GPS, and your screen. Turn them off when you don't need them and you'll find that you can eke out considerably more battery life.
Charge Your Phone: Even more obvious yet rarely heeded advice: Charge your phone often. This isn't as hard as it sounds for most people. While you're sometimes stuck going out for 14 hours with no place to charge your phone, the majority of us spend our days in our homes, our offices, and other places rife with electrical outlets. Buy a few extra chargers and place them strategically around your home, car, and office. Whenever you're sitting around at home or working away at your desk, you can use that time to dock your phone and give it some extra juice without worrying about battery or performance drains. Before I upgraded to Android 2.2, my battery life was pretty awful, but just having a charger in my car and next to my computer made a huge difference in how often I got the dreaded "low battery" message.
Task managers are a controversial subject in Android-land. We've done our research and this is what we came up with, but we're always keen to hear how similar or different your experience is, so share with us in the comments.
original post here
and other similar thread but not same as above

Nice post and thank you
ICS - míñíCM9 -[B_C_N_P]

Ur welcome
----------------------------------------------------
Xperia X8

Good thanks for this post . Hey can u tell me whats the most popular apps , that eats a lot of CPU ?

proadi96 said:
Good thanks for this post . Hey can u tell me whats the most popular apps , that eats a lot of CPU ?
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Thanx u! ! for my observation, i think is a big file of game data and facebook for android should not be install on your phone

proadi96 said:
Good thanks for this post . Hey can u tell me whats the most popular apps , that eats a lot of CPU ?
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Click to collapse
I would say Facebook, GPS apps, Timescape, Whatsapp-like apps.
Sent From My W8 Using Tapatalk

Don't forget to thank the original author and edit the thread AT TOP to state it's not your words
Thanks
Sent from my E15i using XDA

Yes . . Thanx remind me
Sent from my E15i using xda premium

Exelent post. I'll uninstall my task killer now, and I'll try Watchdog app to see the the difference on performance and battery life. For example, I have Navigon installed, but always closed, I'm using sometimes. Is that app draining battery when closed?

El_Wizard said:
Exelent post. I'll uninstall my task killer now, and I'll try Watchdog app to see the the difference on performance and battery life. For example, I have Navigon installed, but always closed, I'm using sometimes. Is that app draining battery when closed?
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Click to collapse
Watchdog will tell you how much of your cpu a certain app is using. So i believe (pls correct me if i'm wrong) that that would give an indication if it is actually playing a part in draining your battery.
Sent from my X8 using xda premium

This is just a copy paste from lifehacker
Sent from my ST18i using xda premium

Nice Post
Uninstall Bad Apps..it improve performance and battery life..
Nice post And thank you :

yes ! and i have mention it also dude
Sent from my X8 using xda premium

pako96 said:
help
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why?
Sent from my X8 using xda premium

Yeeaa this guy went 'help' on my other thread too

RohinZaraki said:
Yeeaa this guy went 'help' on my other thread too
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what he want ?
Sent from my X8 using xda premium

AckeflyRyzle said:
what he want ?
Sent from my X8 using xda premium
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I have no idea bro
Sent from my E15i using Tapatalk

He started a thread on general (a Q&A thread) about how to flash a rom.
Not sure if i should answer anymore as it's on the wrong section?

Usefull information.
Much appreciated.
Thanks!

so which app can make our ram cool???????????? stable 1??/

Galaxy note 4 memory

Can anyone of you download advance task killer from the android market/Google Play. Download and could you check how many memory do you have? When I bought my note, I had only 40% of memory available on my phone, which means about 800 MB, and I couldn't take advantage the rest of the 2+GB memory because phone has couple hundred apps preinstalled... Now I started clearing and un installing all these unnecessary apps and now I have about 1.6 GB memory available on my phone, and as a result of that I was able to get two days battery every day. Basically I can't finish my battery in one day regardless of the usage, which is really good....

Haven't used a task killer in a long time. I looked out of curiosity and there is a massive laundry list of extra crap going on.

bishaarcc said:
Can anyone of you download advance task killer from the android market/Google Play. Download and could you check how many memory do you have? When I bought my note, I had only 40% of memory available on my phone, which means about 800 MB, and I couldn't take advantage the rest of the 2+GB memory because phone has couple hundred apps preinstalled... Now I started clearing and un installing all these unnecessary apps and now I have about 1.6 GB memory available on my phone, and as a result of that I was able to get two days battery every day. Basically I can't finish my battery in one day regardless of the usage, which is really good....
Click to expand...
Click to collapse
Thanks for the info. Can you please tell us what apps you were able to remove to cause the excellent battery life? In the order starting with the one that uses the most to least if you can. Appreciate any help you can post from your testing. Thanks

pcmanager said:
Thanks for the info. Can you please tell us what apps you were able to remove to cause the excellent battery life? In the order starting with the one that uses the most to least if you can. Appreciate any help you can post from your testing. Thanks
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Click to collapse
Well, twospirits made this list of all apps https://docs.google.com/spreadsheet...OksNUB7oHFBsI_OoEQHgeGg7_l4/edit#gid=32644709
So what I did is: I categorized my apps in to three categories: 1- Apps that cannot be removed nor disabled, like Bluetooth speaker and etc so kept those as it is.. 2- the second group are necessary apps like Google play, browser sms,dialer and etc.. so I moved those apps to EX Sdcard, the only exception is youtube which gives me FC, so it has to be in the system..
3- the 3rd category is the rest of the apps which I removed from my phone, like S Health knock and other hundreds...
Now I have almost 2gb availabe memory on my phone which I think it's very good, and that's the reason I'm getting one day of very high usage or two days of normal usage....
Please check my screen shosts, almost two days with 5 hours of Screen On time or 7+ hours in one day....

Thanks for the info. I will work on removing apps that I don't use from the list and see what improvement I can get.

Just wanted to explain a few things.
1) moving apps to external SD Card will not free up RAM. It frees up internal memory (/sdcard or /data) but should not affect RAM.
2) unused RAM is wasted RAM. In this case you are saving battery because some of the apps you deleted were using CPU cycles or keeping wake locks for some reason. The amount of energy used to keep an app in RAM may get you a few extra hours of battery life at most. Your biggest 3 battery killers are Screen, Modem, CPU. In that order.
So good job getting better battery life, and I'm going to be using that list to delete some crapware. But your conclusions in why you saved battery life are a bit off.

Ok this is what everyone in this thread should do before they comment on memory usage,
1. N910C or N910F (Snapdragon or Exynos?)
2. Debloat or not, all apps active (stock)?
3. Debloat with root?
4. How much time without reboot, test of memory usage with or without reboot?
5. Screenshots of disabled apps section of your storage
Me,
1. N910C
2. Debloat, disabled quite a bit services/apps
3. No root
4. Fresh reboot, just now, test of memory usage = 1.52Gb only Wi Fi File Explorer in background.
5. Turned off apps,
Please, i know every device is different but try to follow my little Q & A, in order to get a general idea how much memory does you device use.

dazed1 said:
Ok this is what everyone in this thread should do before they comment on memory usage,
1. N910C or N910F (Snapdragon or Exynos?)
Click to expand...
Click to collapse
Youre in a N910P thread, bud.

xxSTARBUCKSxx said:
Youre in a N910P thread, bud.
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Click to collapse
Well still counts i guess lol

dazed1 said:
Well still counts i guess lol
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Fair enough, its just that people who search by device+problem get brought to threads that detect whats been typed and they get brought to the wrong place looking for help where they cant be helped. . Turn that frown upside down!

xxSTARBUCKSxx said:
Fair enough, its just that people who search by device+problem get brought to threads that detect whats been typed and they get brought to the wrong place looking for help where they cant be helped. . Turn that frown upside down!
Click to expand...
Click to collapse
Can you do a test for me bro? just reboot the phone, and tell me how much ram is used, and what apps are running? (turn off anything you can) thanks.

dazed1 said:
Can you do a test for me bro? just reboot the phone, and tell me how much ram is used, and what apps are running? (turn off anything you can) thanks.
Click to expand...
Click to collapse
Hotboot plus screenies. Forgot about Turned Offs.

Not much in the Turned Offs. A lot was deleted of either .bak'd

xxSTARBUCKSxx said:
Hotboot plus screenies. Forgot about Turned Offs.
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Click to collapse
What? 1.1GB? rooted phone with total debloat?

dazed1 said:
What? 1.1GB? rooted phone with total debloat?
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Click to collapse
Pretty much. But coming from the SGSIII. Ive actually kept a lot of Samsung bloat that id usually delete. Mostly because of its features. Ive spared SprintZone even. Just a nice smooth phone overall.

_Dennis_ said:
Just wanted to explain a few things.
1) moving apps to external SD Card will not free up RAM. It frees up internal memory (/sdcard or /data) but should not affect RAM.
2) unused RAM is wasted RAM. In this case you are saving battery because some of the apps you deleted were using CPU cycles or keeping wake locks for some reason. The amount of energy used to keep an app in RAM may get you a few extra hours of battery life at most. Your biggest 3 battery killers are Screen, Modem, CPU. In that order.
So good job getting better battery life, and I'm going to be using that list to delete some crapware. But your conclusions in why you saved battery life are a bit off.
Click to expand...
Click to collapse
Sir, First of all I'm not a dev, and probably you know more than me about these things but let me ask you this:
Even though I've already deleted unnecessary apps from my phone, but still I was using 70-80% of my phone's memory all the time, and my battery life was one day or less than that .....
I decided to move all my apps to ex-Sdcard which made me using only 30-50%, of my phone's memory and the battery life from one day to two days!
So since you said moving apps to EX-sdcard won't make difference, could you explain to me this situation?
Please go ahead and check my screenshot, I'm watching MKBHD'S full hd video and I'm only using 37% of my phone's memory.
Thanks again.

bishaarcc said:
Sir, First of all I'm not a dev, and probably you know more than me about these things but let me ask you this:
Even though I've already deleted unnecessary apps from my phone, but still I was using 70-80% of my phone's memory all the time, and my battery life was one day or less than that .....
I decided to move all my apps to ex-Sdcard which made me using only 30-50%, of my phone's memory and the battery life from one day to two days!
So since you said moving apps to EX-sdcard won't make difference, could you explain to me this situation?
Please go ahead and check my screenshot, I'm watching MKBHD'S full hd video and I'm only using 37% of my phone's memory.
Thanks again.
Click to expand...
Click to collapse
Were you perhaps plugged into a computer? You lose the ability to use SD Card apps when plugged in.
I'm definitely not a dev, I just know electronics and a bit of basic computing theory.
Using less RAM shouldn't save that much battery. What may have happened is one (or more) of the apps were auto-starting and using CPU cycles to do something not important to you. I'm not sure if SD Card apps can auto start or restart.
Like I said the information you provided is good, just the comclusion of less RAM means better battery is off. Well programed apps should sit in RAM for quick access but not waste CPU cyles on things.

_Dennis_ said:
Were you perhaps plugged into a computer? You lose the ability to use SD Card apps when plugged in.
I'm definitely not a dev, I just know electronics and a bit of basic computing theory.
Using less RAM shouldn't save that much battery. What may have happened is one (or more) of the apps were auto-starting and using CPU cycles to do something not important to you. I'm not sure if SD Card apps can auto start or restart.
Like I said the information you provided is good, just the comclusion of less RAM means better battery is off. Well programed apps should sit in RAM for quick access but not waste CPU cyles on things.
Click to expand...
Click to collapse
You right, I think maybe EXsdcard apps won't auto start and that's what saves my battery. When I check my running apps I cannot see any user apps in there, no facebook, what's up, Browser or any other user apps, so maybe that's is the case.... The only down side of my situation is that I have to manually open Facebook to see latest notifications which honestly I don't mind it because I don't need facebook and twitter running 24/7?

bishaarcc said:
Can anyone of you download advance task killer from the android market/Google Play.
Click to expand...
Click to collapse
You should NOT be using task killers on Android! Advanced Task Killer, or any task killer, will shorten your battery life instead of extending it. Android actually knows how to handle itself quite well, and will keep certain things around for a reason. Google created Android and just might know Android a little bit better than those 3rd party app developers.
Also, I see in your other posts you keep calling a micro-sd card an ExSdCard. If you think about it, "Ex"SdCard would actually mean "Previous"SdCard. It's called ExtSdCard, meaning Extended SD card. And FYI, there is no Android Market anymore, it was replaced by Play Store years ago.