[Q] Safety of RAM Expander kind apps - Android Q&A, Help & Troubleshooting

Hello,
I'm using an app called RAM EXpander to increase swap in order to unlag my phone wich is running many many apps...
IM using an Xperia S and it doesnt have much ram, and this was the only solution to keep everything running and to not make lag in my phone..
So the question is, how safe can be the use of this kind of apps in relation of the flash memory usage (readings/writings)..
AFAIK it'll do some harm in the long term, but what long term means?? 2 years? 1 month and it'll kill my phone flash memory?? 10 years??
I've seen in XDA and all over the web, people that comment on how bad is using flash as a swap because of the writing limitations in flash memory, but still havent seen an actual case of a dead flash memory... LOL
thank you in advance

Anyone?

Related

1GB RAM ???

hello all,
sorry if this has been asked before (it prolly has been, i didnt find it though):
the atrix got 1gb ram right? after a reboot there is only around 570mb free ram...
after a few days without rebooting iam stuck around 440-480mb ram...
1st: where is my 1gb?
2nd: why do i even loose more ram?
sorry iam really new to android.
thanks for the help.
There is a reserve amount for android and motoblur then whatever apps u got running in background
Sent from my greyblur 1.57 atrix
grncivic2001 said:
There is a reserve amount for android and motoblur then whatever apps u got running in background
Sent from my greyblur 1.57 atrix
Click to expand...
Click to collapse
yea i know android needs some itself but is it 50% ??? i mean the LG optimus only got 512mb... in my case id have 0 left... something strange here?
i got the launcherPro running. should be motoblur disabled now?.
thanks for the fast answer !
Yes it has 1gb 200mb is reserved for the webtop and 800mb is for android
you might want to read up on how linux and android USE ram also. free ram is wasted ram
is it bloatware
So its normal i only have roughly 600 mb left. Ok thx a lot.
Can you help me with another problem.?
I read somewhere that you don't need a task killer. I have always used one to get back to like 500mb. Now you tell me unused ram is wasted ram. I installed autokiller after some advice and opened some games and stuff. Later i was at 154 unused ram. After 2 hours standby i was at 237mb unused ram. Would i ever get back to 400+ ? And is it really better or at least soesnt matter for battery life?
Thx for help
Smintz said:
So its normal i only have roughly 600 mb left. Ok thx a lot.
Can you help me with another problem.?
I read somewhere that you don't need a task killer. I have always used one to get back to like 500mb. Now you tell me unused ram is wasted ram. I installed autokiller after some advice and opened some games and stuff. Later i was at 154 unused ram. After 2 hours standby i was at 237mb unused ram. Would i ever get back to 400+ ? And is it really better or at least soesnt matter for battery life?
Thx for help
Click to expand...
Click to collapse
I found that to be true (not needing a task killer) but only under Gingerbread (I've noticed that since I upgraded my Nexus One to Gingerbread), but on FroYo that's not really the case, or so I've noitced.
However I found that the task killer included on the Atrix works really well (much better than any other on the Market). It's just a matter of selecting the apps that you don't want to auto close and that's it. The battery last a bit longer and the device does not heat up at all.
Cheers!
RayanMX
Heres how I see it.
On your computer, you're always scrambling for more ram right? Because you are running multiple applications at once. You have a music player, a game, chat, windows itself, antivirus etc.
On your phone, it depends more on your processor speed. You arent multitasking like crazy (and if you are your phone would start to heat up really rapidly) Android allocates ram accordingly to what you are running in the foreground and apps that arent open but were opened recently. That way, if you reopen a recently closed app, it is still in memory and will open quicker. If you don't access the closed app after a while, it will clear itself from memory. You definitely don't need a task killer for android, only more processing speed.
I only have 325 of ram
Sent from my MB860 using XDA App
Pirateghost said:
you might want to read up on how linux and android USE ram also. free ram is wasted ram
Click to expand...
Click to collapse
Bingo. So many people freak out that they don't have enough RAM... it's getting annoying seeing as how the Android OS has been out for a long enough time to understand this now.
Even of you cant find it it doesnt matter. Your phone will tell you.
Sent from my MB860 using XDA App
I have like 600 when running chongoblur it quickly goes down to 400 something but still this thing is a devastator of worlds
Sent from my Googletron

Samsung Galaxy S3 - High RAM Usage?

How much of your RAM is consumed ?
Mine is always over 600 out of the 780mb. Even after a ram clear ?
Is this normal ?
Where exactly do you see the ram?
Does it bother you ? mine is smooth as butter, stock everything
Unused ram is just going to waste.
Sent from my GT-I9300 using Tapatalk 2
corrsea said:
Unused ram is just going to waste.
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
I have read this before, but I wonder if more memory is used then more battery is consumed. Isn't that right?
sent with SGS3
Loading and unloading apps all the time needs a lot more battery that keeping the RAM filled up. Both performance and battery life would suffer if the RAM would be kept empty.
Sent from my GT-I9300 using xda premium
i have this problem as well.. and when too much ram is consumed around 650mb on average for me.. my s3 will starts to lag sometimes when exiting from an app to the home screen. anyone has solution to this ? clearing the memory dosen't help much. memory still fluctuates around 600+ mb
Install a task manager with listing capability, e.g. Houmiak Taskmanager and check which process(es) cause the high usage.
It should not lag, usually that's caused by app service processes not terminating correctly when exiting/closing the app and filling up memory to the brink.
If you got such apps you might want to try 'Fast Reboot' which usually gets rid of them very fast with (imho) less performance impact than most other 'memory cleaners'
thanks.. i have thus far downloaded ram booster.. works great for me .. free up lotsa memory and now it fluatueting around 400 :good: now my s3 is running at the speed it should be
Im at 600/780Mb.
No apps running under active apps.
Yet if i hit clear memory, it says 21 apps closed and drops down to 530
I get high RAM usage too , sometimes can reach up to 680 but the odd thing is that I don't see any difference in terms of performance. It is still fast as ever.
Veilus said:
Im at 600/780Mb.
No apps running under active apps.
Yet if i hit clear memory, it says 21 apps closed and drops down to 530
Click to expand...
Click to collapse
And how long does it stay that way?
Tip: stop looking at ram usage, stop killing apps and stop creating duplicate threads of the same subject
Sent from my GT-I9300 using xda premium
Solution?
First off these forums are here for people to ask for help. Old threads have no new interest.
I stumbled across this in hope of a permeant fix as mine too is around 650mb and phone starts to lag. Only quick solution I have is to go into developer options and click background processes and limit the amount that can occur. I turned mine to 0. Don't know the effect on battery yet but its around 500mb now and the phone is now back to its smooth self.
Wont that stop software such as weather to update in the background?
sent with WSGS3
antdawe said:
First off these forums are here for people to ask for help. Old threads have no new interest.
I stumbled across this in hope of a permeant fix as mine too is around 650mb and phone starts to lag. Only quick solution I have is to go into developer options and click background processes and limit the amount that can occur. I turned mine to 0. Don't know the effect on battery yet but its around 500mb now and the phone is now back to its smooth self.
Click to expand...
Click to collapse
Best way to preserve ram is to switch off your phone..that way it will have 1 gb ram..
[Off topic] killing background processes will make your phone like my Nokia 1100..with no multitasking..all the apps will close once you exit..and all the data will be loaded up when you restart again..taking up more cpu time and battery..
Sent from my GT-I9300 using xda app-developers app
zoot1 said:
Best way to preserve ram is to switch off your phone..that way it will have 1 gb ram..
[Off topic] killing background processes will make your phone like my Nokia 1100..with no multitasking..all the apps will close once you exit..and all the data will be loaded up when you restart again..taking up more cpu time and battery..
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Quoted for truth.
No multitasking = slower phone, worse battery.
Sent from my GT-I9300 using xda premium
I was having the same problem with my S3 the first week I bought it. I switched it off and on again and it was back to normal
Just my point of view using a comparison :
On the computer when I installed more RAM it's to have more apps load in it instead of waiting for them to be loaded... Not just to have more RAM unused...
On the phone it's the same.
Android seems to handle ram usage very well, killing apps on it self when ram is required...
Reason I did it was when my ram was going above 600mb upon exiting apps my home screen would hang with no icons for a few seconds. Task manager, clear process and it return to normal. Limiting the process somehow worked. It's not logical but these are phones not computers.
There's no software trick on my mac that can increase ram like jelly beans has done so who knows.
Plus most apps apart from weather etc store their last state and resume where you left off so doing what I says does not affect me.
Sent from my GT-I9300 using xda premium
I too have this ram problem. I like that the phone is doing its best to keep the ram full for multitasking purposes but i hate when it lags when i go back to the home screen. Also sometimes i close an app to do something else, say texting, then go back and it has to re-open the app because android killed it to free up space. Couldnt it just cache it if it needs space instead of fully closing it?
I heard there was an update that fixed this ram issue but its not showing up for my phone.
In some ways i miss my galaxy s2 :/

What is Zram and the best uses/setting for it? :)

I'm currently running the devil kernel on my phone, using the new devil app to control settings but I really don't know a couple settings though. First what I'd zram and is it better than swap? And what's the best value to set the zram at? I have it on 150mb.
Also what's better zram or swap?
Dude look @ the op
Sent from my SGH-T959 using Tapatalk 2
No info about what it is in the op U_U
well, based on my reading...(Basically meaning take this with a grain of salt because I may not perfectly re-present the information, but this is how I've come to understand it lol )
zram basically compresses unused apps within the system RAM. This allows the system to swap less needed processes to the zram partition for faster access at a later time, instead of killing them. This does take up some of your ram though, so I imagine that the value you are setting is determining exactly what percentage of your ram that the zram partition is allotted.
Swap instead uses a small portion of the SDcard like RAM. The phone will attempt to keep as much within the ram as possible until fill, and then begin using the swap partition on the SDcard. At that point, the phone will begin moving inactive blocks of memory to the SD, freeing up RAM for active processes. If one of the pages on the SD needs to be accessed again, it will be moved back into RAM, and a different inactive page in RAM will be moved onto the SD ('swapped').
Swap files don't restrict available RAM but writing to the sdcard impacts the speed of opening apps.
Now, which is better? No idea ^^ Lol
Holly crap I'm enabling swap lol. Do I need to repartition my SD card for swap?
I wouldn't enable swap, you don't need it, zram us nifty but also not need. Your system can handle memory just fine without you. Just let it to its thing and you will be fine.
Sent from my Galaxy Nexus using Tapatalk 2
I agree completely. My former device had a hack that we came up with that would force app2sd on a 2.1 build. This was great at the time but it cause some serious lag. We then enabled the swap to help with the memory issues. It worked for awhile but then all these apps started to come out that were, not to sound funny, memory hogs. This device only had 128mb of user RAM, so it was a constant struggle to get it working. Gotta remember that this was pre-GB times, so Froyo was the ICS of that time.
Here is more to read from this devices section about how swap works. The thread was revived on Post #9 and my explaination is Post#16.
Moral of the story is that I agree with Eco, let the phone work for you and not you against it. There are few memory issues with the Vibrant. Is it running 2gb of RAM? No but do you really need something like that on a phone?
Woodrube said:
I agree completely. My former device had a hack that we came up with that would force app2sd on a 2.1 build. This was great at the time but it cause some serious lag. We then enabled the swap to help with the memory issues. It worked for awhile but then all these apps started to come out that were, not to sound funny, memory hogs. This device only had 128mb of user RAM, so it was a constant struggle to get it working. Gotta remember that this was pre-GB times, so Froyo was the ICS of that time.
Here is more to read from this devices section about how swap works. The thread was revived on Post #9 and my explaination is Post#16.
Moral of the story is that I agree with Eco, let the phone work for you and not you against it. There are few memory issues with the Vibrant. Is it running 2gb of RAM? No but do you really need something like that on a phone?
Click to expand...
Click to collapse
Exactly, Android is designed for low Memory systems. It can handle out of Memory situations on its own, and will kill unneeded apps as is necessary to free ram for running apps. Don't worry about how much "free" ram you have because it doesn't matter. You want more free ram learn to set the ram usage settings to be more aggressive at killing idle apps. It'll and up using more battery, but if free ram is what you want then that's how to do it.
Sent from my Galaxy Nexus using Tapatalk 2
Woody said:
I agree completely. My former device had a hack that we came up with that would force app2sd on a 2.1 build. This was great at the time but it cause some serious lag. We then enabled the swap to help with the memory issues. It worked for awhile but then all these apps started to come out that were, not to sound funny, memory hogs. This device only had 128mb of user RAM, so it was a constant struggle to get it working. Gotta remember that this was pre-GB times, so Froyo was the ICS of that time.
Here is more to read from this devices section about how swap works. The thread was revived on Post #9 and my explaination is Post#16.
Moral of the story is that I agree with Eco, let the phone work for you and not you against it. There are few memory issues with the Vibrant. Is it running 2gb of RAM? No but do you really need something like that on a phone?
Click to expand...
Click to collapse
Good old g1 and mytouch days
No signature for you!
Woody said:
There are few memory issues with the Vibrant. Is it running 2gb of RAM? No but do you really need something like that on a phone?
Click to expand...
Click to collapse
Actually, yes. There are certain apps, like Facebook, Whatsapp, Skype and probably more, that have their background services running even if you close the app. Those services are for sending notification, but they are slowing down this device very much (Even if only the Facebook service is running). So I do feel the device does not handle memory so good. And I can't blame it, since it has a limited memory, but I do wish I had more RAM.
Don't enable zram or swap unless you have the EU bug or like your shizz lag like a mo'fo'. If your phone is playing nicely, then disable both. Allow Purging of Assets also.Set it to two processes in Dev Section.
Sent from a Beaner
Like the SIG D'fresh!
Sent from my SCH-I535 using xda premium
Dougfresh said:
... Set it to two processes in Dev Section.
Sent from a Beaner
Click to expand...
Click to collapse
By this do you mean the "Background Process Limits"?
Sent from my SGH-T959 using xda app-developers app
scottPilgrim said:
hey devil, got a question for you...
any particular reason why you removed zRAM from your kernel? i was wondering if you could elaborate a little bit on why it isn't necessary on this device.
Thanks man
Click to expand...
Click to collapse
Xenoism said:
zram basically compresses unused apps within the system RAM. This allows the system to swap less needed processes to the zram partition for faster access at a later time, instead of killing them. This does take up some of your ram though, so I imagine that the value you are setting is determining exactly what percentage of your ram that the zram partition is allotted.
Click to expand...
Click to collapse
Not really needed on our device that have 2gb of ram memory.
Have ever been in a situation where you have been out of free ram? Neither have I.
Sent from my GT-N7100 using Tapatalk 2
Our devices don't have 2gb ram memory. They have 512mb ram memory
Sent from my SGH-T959 using xda app-developers app
cannondaleV2000 said:
Our devices don't have 2gb ram memory. They have 512mb ram memory
Sent from my SGH-T959 using xda app-developers app
Click to expand...
Click to collapse
1+

RAM on galaxy S3 - Discussion

Hi all,
Ok so I've got this phone a week ago, and I like it so far. Ieike the beautiful screen and the great battery life. I gave my galaxy S2 to my wife.
However, this phone has a serious issue and I am really surprised that it is not floating all over XDA: It is the RAM.
I used to install more than 120 applications on my s2. Despite that I had about 200 to 300MB of free RAM.
As a common sense, I did the same on my s3, but I ended up with around 80 to 100 mb of free RAM. I WAS SHOCKED
I tried to be more scientific so I did more investigation on this issue:
Both all phones are rooted , both running on custom ROM.
S2 on 4.1.2 XXLSJ ROM with stock Kernel. No system apps are removed. Has all bloatware.
S3 on 4.1.2 XXEMA2 ROM with stock Kernel however it is approximately completely cleaned from bloatware like ALL share , all widgets that I don't use, kies, Samsung apps, and every other irrelevant stuff.
After closing all recent/ running apps , I got In Running services :
S2 506MB RAM used / 321 MB RAM free
S3 759MB RAM used / 74MB RAM free
To get more info, I installed an application Called android status from market. It didn't show anything abnormal.
As you can see in the attached screenshots, while the running services are approximately the same, the cached processes are a lot more on the S2 since it's still bloated But still despite all that the S2 has much more free RAM!!!!
This issue is driving me crazy!!
What could be the culprit !!!?
Can anybody please enlighten me!?
Thanks
Sent from my GT-N8000 using XDA Premium HD app
Linux is not windows, free ram=wasted ram
The ram management is poor on S3 and multitasking is crippled.
From launcher redraws to phone and contact lag.. Everything is caused by it
There's no solution but only workarounds.
_________________________________
Typed with one finger on a sheet of glass
been discussed to death, search the other multiple threads for an answer
Life Engineer said:
Hi all,
Ok so I've got this phone a week ago, and I like it so far. Ieike the beautiful screen and the great battery life. I gave my galaxy S2 to my wife.
However, this phone has a serious issue and I am really surprised that it is not floating all over XDA: It is the RAM.
I used to install more than 120 applications on my s2. Despite that I had about 200 to 300MB of free RAM.
As a common sense, I did the same on my s3, but I ended up with around 80 to 100 mb of free RAM. I WAS SHOCKED
I tried to be more scientific so I did more investigation on this issue:
Both all phones are rooted , both running on custom ROM.
S2 on 4.1.2 XXLSJ ROM with stock Kernel. No system apps are removed. Has all bloatware.
S3 on 4.1.2 XXEMA2 ROM with stock Kernel however it is approximately completely cleaned from bloatware like ALL share , all widgets that I don't use, kies, Samsung apps, and every other irrelevant stuff.
After closing all recent/ running apps , I got In Running services :
S2 506MB RAM used / 321 MB RAM free
S3 759MB RAM used / 74MB RAM free
To get more info, I installed an application Called android status from market. It didn't show anything abnormal.
As you can see in the attached screenshots, while the running services are approximately the same, the cached processes are a lot more on the S2 since it's still bloated But still despite all that the S2 has much more free RAM!!!!
This issue is driving me crazy!!
What could be the culprit !!!?
Can anybody please enlighten me!?
Thanks
Sent from my GT-N8000 using XDA Premium HD app
Click to expand...
Click to collapse
Hi
I had the same issue
HTC Desire HD (768MB RAM) - Custom ROM - Always 150-200MB free RAM
S3 i9300 (1GB RAM) - Stock ROM (cleaned, lots of services stopped etc) 100MB or less free RAM
S3 LTE i9305 (2GB RAM) - Stock ROM (cleaned, lots of services stopped etc) 600-500MB free RAM
On my Desire HD never had luancher redraws, dialer, messaing app dropping from memory but was a issue on the S3, I think its an issue with higher resolution screens and software not optimized properly (memory management).
I have seen a fair few Xperia T devices which also have 1GB RAM but they seem to have 200-300MB free RAM.
I have the S3 LTE (i9305) now and RAM usage is always above 1GB, generally around 1.1/1.2 GB.
Maybe it's just Samsung software.
Thanks
Daanlt said:
Linux is not windows, free ram=wasted ram
Click to expand...
Click to collapse
Sorry to tell you but that's not true!
I can multitask easily on my S2 but I cant on my S3!! We can't just give some arguments just to convince ourselves!
I can open up to 5 apps and seamlessly switch between them while I can't do the same on my s3! It reopens the app!
Damn I'm really depressed by this sh*t! It should have been 2 RAMs!
Sent from my GT-N8000 using XDA Premium HD app
DSA said:
been discussed to death, search the other multiple threads for an answer
Click to expand...
Click to collapse
Please guide me Mr. consider me as an ignorant!
All I could find was some threads in Q&A which unfortunately are only Q without any convincing A!!
Sent from my GT-N8000 using XDA Premium HD app
eggman89 said:
The ram management is poor on S3 and multitasking is crippled.
From launcher redraws to phone and contact lag.. Everything is caused by it
There's no solution but only workarounds.
_________________________________
Typed with one finger on a sheet of glass
Click to expand...
Click to collapse
Please point me to some workarounds I'm ready to try some!
Sent from my GT-N8000 using XDA Premium HD app
I have a nexus 7 and the amount of memory used by identical apps is 2-3 times more on the s3. It must be down to the architecture of the processors and compiling.
I have to remove loads of bloat and freeze some apps when not in use to make it usable. Shocking really.
Sent via TCP/IP
Daanlt said:
Linux is not windows, free ram=wasted ram
Click to expand...
Click to collapse
Stfu
Free ram is not wasetd ram , its used to cache apps in the ram and when the ram is full no apps will be cached and and no apps will run in the background :thumbdown:
Btw my friend and my sister gs3 have the same problem probably there is ram leaking with gs3
And I dont have any problem with s2 here too running LSD
Sent from my GT-N7100 using Tapatalk 2
Edit: mali driver r2p4 is known to leak the ram in JB so I bet its still leaking ram even after patching the framework
http://forum.insignal.co.kr/viewtopic.php?t=76
The ram issue on the S3 is well-known. The memory management isn't as good as it could have been. I blame bloatwiz. Don't know if we should cry or laugh. They have crammed more than 800 MB of bloat in a phone that runs perfectly without it. A full odin rom is approx 1.2 GB and it's possible to reach a size of 300 MB (I know, because I have tried), by seriously cleaning up the system partition, in terms of apps and libs and it runs without a hitch, and has loads of ram left.
It also goes without saying that unused ram, is wasted ram.
yahyoh said:
Stfu
Free ram is not wasetd ram , its used to cache apps in the ram and when the ram is full no apps will be cached and and no apps will run in the background :thumbdown:
Btw my friend and my sister gs3 have the same problem probably there is ram leaking with gs3
And I dont have any problem with s2 here too running LSD
Sent from my GT-N7100 using Tapatalk 2
Edit: mali driver r2p4 is known to leak the ram in JB so I bet its still leaking ram even after patching the framework
http://forum.insignal.co.kr/viewtopic.php?t=76
Click to expand...
Click to collapse
If you actually read a bit of the thread instead of aggressively dismissing the post, you would have realized that the lower amount of ram is because there are more cached processes. That's where the RAM went. The underlying issue is the RAM management itself.
As others have pointed it out, unused RAM is wasted RAM.
If you don't have a good knowledge of what you are saying, better not tell others to shut up and maybe put it in practice yourself.
Also, there is no proof that there is a leak in the Mali hack job from Samsung in stock roms. It's not comparable to the leaking in CM which is completely replicable.
Sent from my GT-I9300 using Tapatalk 2
More free RAM=better multitasking,it's a fact.It's only wasted if you are going to run only 1 app at a time or else android will start killing apps when your phone is running out of memory.Not to mention the annoying browser refreshes which I face a lot even when I'm running only1 app with the browser(e.g:Facebook).If I'm playing a heavy game and recieved a 1 min call, the game restarts and I lose my progress.The problem is the terrible memory management in touchwiz ROMs,I have tried out a few AOSP 4.2 ROMs before and I have to say that multitasking is much better on them and browser refreshes happen less frequently.So,if you are ok with losing TW's features, flash an aosp ROM for better multitasking.
drakester09 said:
If you actually read a bit of the thread instead of aggressively dismissing the post, you would have realized that the lower amount of ram is because there are more cached processes. That's where the RAM went. The underlying issue is the RAM management itself.
As others have pointed it out, unused RAM is wasted RAM.
If you don't have a good knowledge of what you are saying, better not tell others to shut up and maybe put it in practice yourself.
Also, there is no proof that there is a leak in the Mali hack job from Samsung in stock roms. It's not comparable to the leaking in CM which is completely replicable.
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
LOL can u check how many apps are cached when when the free ram too low ( 80 or 90 MB ) u will got 1 or 2 + as soon as u close the app it will get killed instead of get cached :silly:
for god sake stop saying free ram is wasted ram ( if is that ur theory then go for 512 MB ram device its enough for u beause free ram is wasted ram ) and live with **** multitasking
and Mali driver leak is just a thought because the free ram problem only happened on JB on ICS my sister device was have about 200MB ~ most of the time
Well used to have this issue. Rooted, installed omega 40 and I can seamlessly multitask upto 6-7 apps at a time. Try omega rom, multitasking is great in this rom.
Sent from my GT-I9300 using xda app-developers app
yahyoh said:
Stfu
Free ram is not wasetd ram , its used to cache apps in the ram and when the ram is full no apps will be cached and and no apps will run in the background :thumbdown:
Btw my friend and my sister gs3 have the same problem probably there is ram leaking with gs3
And I dont have any problem with s2 here too running LSD
Sent from my GT-N7100 using Tapatalk 2
Edit: mali driver r2p4 is known to leak the ram in JB so I bet its still leaking ram even after patching the framework
http://forum.insignal.co.kr/viewtopic.php?t=76
Click to expand...
Click to collapse
So what you are saying the apps are not cached they are kept in RAM, please learn what caching is, cached apps are stored in the cache partition of the phone, they are not cached in the RAM otherwise the phone is doing nothing with them.
Android works by moving background apps to the internal memory, if you switch your phone on check RAM usage, then open apps using the home button to get back to the home screen and check it you will see that no matter how many apps you open the free and used RAM values barely change up to a certain point, this is the app caching at work.
If you home out of apps you will see why Android caches apps.
Running stock ELLA I just used the recent apps, and home button, opened 7 apps and used the home button to return to the home screen, no launcher redraws, and my apps all opened instantly where they were.
yahyoh said:
LOL can u check how many apps are cached when when the free ram too low ( 80 or 90 MB ) u will got 1 or 2 + as soon as u close the app it will get killed instead of get cached :silly:
for god sake stop saying free ram is wasted ram ( if is that ur theory then go for 512 MB ram device its enough for u beause free ram is wasted ram ) and live with **** multitasking
and Mali driver leak is just a thought because the free ram problem only happened on JB on ICS my sister device was have about 200MB ~ most of the time
Click to expand...
Click to collapse
Well said:thumbup:
I'm also sick of listening about "free ram is wasted ram".
Sent from my GT-I9300 using Tapatalk 2
I dont see any problems here, this isn't just turned on either.
Sent from my GT-I9300 using xda premium
Mine always hovers around 650/832... Even if i have crap ton of apps running,
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[Q] around 600MB free RAM on Samsing Mega 6.3 :(

I planned to buy a new Samsung Galaxy Mega 6.3, but then I noticed the free RAM is around 600 MB .
Would this RAM be sufficient enough for a smooth multi-tasking experience and with many widgets. ? ?
Initially, I thought of Samsung Note-2 which has around 0.91GB of free RAM which ofcourse ifs more than enough for any kind of multi-tasking.(but its too costky )
Is there anyway through which I can get more RAM on "Samsing Mega 6.3" ?? ?? ?? .. ....
What I thought was, the device has a total RAM of 1.5GB , so if I root the device & remove various redundant applications which I dont need & replace the launcher with a light one,
then will there be a chance to get around 800-900MB of RAM ?? ?? ??
rohitdhavade said:
I planned to buy a new Samsung Galaxy Mega 6.3, but then I noticed the free RAM is around 600 MB .
Would this RAM be sufficient enough for a smooth multi-tasking experience and with many widgets. ? ?
Initially, I thought of Samsung Note-2 which has around 0.91GB of free RAM which ofcourse ifs more than enough for any kind of multi-tasking.(but its too costky )
Is there anyway through which I can get more RAM on "Samsing Mega 6.3" ?? ?? ?? .. ....
What I thought was, the device has a total RAM of 1.5GB , so if I root the device & remove various redundant applications which I dont need & replace the launcher with a light one,
then will there be a chance to get around 800-900MB of RAM ?? ?? ??
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Like they say, unused RAM is wasted RAM. In my experience the RAM is more than enough to do multitasking. I have not yet experienced any slow down because of RAM even under heavy load and I have tried having multiwindow with popup play running on top.
gx3k said:
Like they say, unused RAM is wasted RAM. In my experience the RAM is more than enough to do multitasking. I have not yet experienced any slow down because of RAM even under heavy load and I have tried having multiwindow with popup play running on top.
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Click to collapse
I echo that JB handles rame really well as mentioned above unused ram is pointless and android will kill apps or processes in memory as and wehn required that way you have a smoother experience throughout as apps are able to refresh quicker, yet when needed will be killed off by the oom memory managment
thering1975 said:
I echo that JB handles rame really well as mentioned above unused ram is pointless and android will kill apps or processes in memory as and wehn required that way you have a smoother experience throughout as apps are able to refresh quicker, yet when needed will be killed off by the oom memory managment
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Click to collapse
Ohh..
Thanks For that info, I didnt knew that apps are automatically killed as & when the need arises .
Then, its a good deal to buy mega 6.3.
Sent from my LG-P970 using xda app-developers app
rohitdhavade said:
Ohh..
Thanks For that info, I didnt knew that apps are automatically killed as & when the need arises .
Then, its a good deal to buy mega 6.3.
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
indeed it is, great phone indeed
My i9205 had around 1.1G ram of 1.32G used when new (just after boot). I uninstalled several samsung applications and it decreased to 0.9G used. If I "clear ram" I get around 600mb used. It seems to help, Chrome is seldom killed now, I can have many pages open and it does not need to reload them when coming back after doing other stuff.
You also seem to have a bit of a misunderstanding with how Linux memory management works.
It is easier to pull the RAM out of cache, and cache RAM isn't reported as "free" even though it essentially is, because it can be pressed into service as soon as it's needed and is a lot faster than taking it from the hard disk.
Linux also doesn't need "free RAM" to just be there to operate, a phone with 1.2GB "Free RAM" won't run any faster than one with 400MB free unless the processor is doing something in the background extra.
If anything, the one with 400MB will seem faster because it probably has the apps you use loaded in RAM without using any CPU so as soon as you try to open, let's say Facebook, it was already cached in RAM so it just boots right up.
Long story short, if you have 600MB free RAM, you have nothing to worry about in terms of performance on the phone.

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