Database Develop

Full 512 mb available?

Does the froyo update make the full 512 mb ram available? I had heard earlier that only a part of it was available due to 2.1 limitations.
Sent from my GT-I9000 ADJF1 using XDA App

They were always available, ~300Mb for Programs and the rest for the system files... Why should that change?

I think what the OP meant was whether one had more memory for apps as ht tp:// developer.android.com/sdk/android-2.2-highlights.html claims that the 2.6.32 kernel upgrade would bring "HIGHMEM support for RAM >256MB".
At the moment, we do not have the full memory available in the Linux system:
Code:
$ adb shell
* daemon not running. starting it now *
* daemon started successfully *
$ free
total used free shared buffers
Mem: 333420 329988 3432 0 34724
Swap: 0 0 0
Total: 333420 329988 3432
I do not know whether that is related to the graphics hardware taking some of the memory, or to the kernel version:
Code:
$ uname -r
2.6.29
Edit: What do you mean by 'system files'? The OS is stored on mass storage, right? And Dalvik and friends should appear as userspace processes taking up regular memory.

satta said:
I think what the OP meant was whether one had more memory for apps as developer.android.com/sdk/android-2.2-highlights.html claims that the 2.6.32 kernel upgrade would bring "HIGHMEM support for RAM >256MB".
Click to expand...
Click to collapse
You do understand that this does not compute, since there has always been more than 256MB available
Or has there?

I was wondering about the same thing, kernel 2.6.32.9 (JP3) also shows a little more than 300mb...

buddy01 said:
You do understand that this does not compute, since there has always been more than 256MB available
Or has there?
Click to expand...
Click to collapse
Hey, I'm just quoting from an official AOSP site

Mine shows 30 mb available under advanced task killer. What am I missing?
Sent from my GT-I9000 using XDA App

@satta yeah that's what I meant and that's what I had read. Cheers
Sent from my GT-I9000 using XDA App

I've seen Desire have over 400MB of memory available for applications in a video with a some sort of task manager on..

Are you sure, max i got on my nexus one was 312MB in some rare cases, using it without closing apps at all, never got below 100MB... But my Galaxy's max is 170MB, is almost half what my nexus gave me, that kinda suck (don't know if it matter bu tit feels bad in my head )

Desire has 576MB memory.. N1 has 512MB
Sent from my GT-I9000 using XDA App

Maximum free RAM i got from my sgs is 210mb, easily achieved by using Astro's process manager and killing all non-essential services.

why t.f. do you guys always want to have lots of fre ram? please read a little about android memory management... free ram is wasted ram!

FadeFx said:
why t.f. do you guys always want to have lots of fre ram? please read a little about android memory management... free ram is wasted ram!
Click to expand...
Click to collapse
So? We all still want our phones to be as future proof as we hoped they would be when we bought them. And we want the extra RAM simply because it's supposed to be there.
Sent from my GT-I9000 using XDA App

FadeFx said:
why t.f. do you guys always want to have lots of fre ram? please read a little about android memory management... free ram is wasted ram!
Click to expand...
Click to collapse
As long as it doesn't go below that ~70mb when the phones actually start lagging
Might also want to take into consideration that the counterpart Desire used in this thread is also an android phone, sure too much free memory is wasted memory but too little usable memory = lag and if there isn't a lot to use in the first place then it won't take much for the phone to start lagging.
Some help in JG and onward firmwares but it's still quite funny that a simple user can make a fix to create a solution for the entire problem and Samsung hasn't either thought about this or taken it into consideration. (Mimocan is my hero <3)
edit: WOO my first post after actually following these forums for almost half a year, just registered recently

Hey,
Actually you do not need that much RAM. Im running on JG5, which IMO is the most stable and usable firmware out there. Has been running the phone for 3 days straight without any ATK like apps, and has not experience any lags.
Another thing is that, IMHO ATKs slow down the system.
Sent from my GT-I9000 using XDA App

The current Samsung froyo builds do not support highmem. It is a kernel compile time config option. Samsung will hopefully enable it in later builds.
Highmem made a noticeable difference in performance on my nexus one.

ed10000 said:
So? We all still want our phones to be as future proof as we hoped they would be when we bought them. And we want the extra RAM simply because it's supposed to be there.
Click to expand...
Click to collapse
Nonsense. You are not entitled to more free ram in any way.
Every os uses a part of the ram for the kernel code and its buffers.
In addition the advanced graphics will need memory for its texture storage and graphic representation.
A froyo kernel will not make a major difference.
The sg has 512 memory today and it is using it as it should...

akselic said:
As long as it doesn't go below that ~70mb when the phones actually start lagging
Might also want to take into consideration that the counterpart Desire used in this thread is also an android phone, sure too much free memory is wasted memory but too little usable memory = lag and if there isn't a lot to use in the first place then it won't take much for the phone to start lagging.
Some help in JG and onward firmwares but it's still quite funny that a simple user can make a fix to create a solution for the entire problem and Samsung hasn't either thought about this or taken it into consideration. (Mimocan is my hero <3)
edit: WOO my first post after actually following these forums for almost half a year, just registered recently
Click to expand...
Click to collapse
lagging is actually not caused by to less free ram, in android there is no such. the used ram is caused by apps that you opened and then exited again. if you open a new app that needs more ram than aviailable (actually with a little gap of some mb) the system will close apps that are not used anymore and only kept in ram for faster opening. the lag comes from bad i/o speeds of the nand (internal memory) where apps data is stored. on i7500 there is 192mb of ram and it works ok with froyo (thanx to drakaz and gaosp team!) only thing is that every app you open forces the app you opened before to be kicked out of ram what makes switching between apps makes somewhat a pain.
also free memory and usable memory is apples and pears, useable is all memory that contains no actually running in foreground app or service. and free memory is the rest that contains absolutely no information and thus WASTED
edit: btw i7500 is running well with 20mb free ram.

I often have no more than 30 MBs free, and not running THAT many apps. What is strange is that sometimes there is 70-80 MB free, and I have not done anyting. What happens in the background is a mystery... Any suggestions?

Ram ?

Hello, i bought the phone (used) a few days ago. it's great.
just wondering, there's a pretty low amount of available ram (~300-350 somtimes 400 after cleaning memory).
currently im running stock 4.1.2
so, if i will flash any cm rom or any other rom, will there be more ram available?
or that's it?
thanks in advance.

yoeleli said:
Hello, i bought the phone (used) a few days ago. it's great.
just wondering, there's a pretty low amount of available ram (~300-350 somtimes 400 after cleaning memory).
currently im running stock 4.1.2
so, if i will flash any cm rom or any other rom, will there be more ram available?
or that's it?
thanks in advance.
Click to expand...
Click to collapse
why do you need more free ram? more free ram is useless, system uses ram to cache programes to start faster.

moneyvirus said:
why do you need more free ram? more free ram is useless, system uses ram to cache programes to start faster.
Click to expand...
Click to collapse
Because it's frustrating to close apps\clean ram all the time. it would be nice to have about 50-100mb for extra free ram.

yoeleli said:
Hello, i bought the phone (used) a few days ago. it's great.
just wondering, there's a pretty low amount of available ram (~300-350 somtimes 400 after cleaning memory).
currently im running stock 4.1.2
so, if i will flash any cm rom or any other rom, will there be more ram available?
or that's it?
thanks in advance.
Click to expand...
Click to collapse
that's it
moneyvirus told you right...
Sent from my LG-P880 using xda app-developers app

Free RAM is wasted RAM... RAM is way faster that the usual storage. That's why the system preloads as many apps as possible, to start up directly, without loading too long. So, the more used RAM you have, the better. Linux is not Windows. Windows is known for its bad RAM management.
Also, 300Mb is quite a lot BTW regarding 1GB total RAM. Killing apps to "safe" memory is the worst thing you can do. Let the system decide what's needed and what's not.
Also, Questions belong into the Q&A section. Thread moved.

my friend , android works that way. it caches everything to ram so that is faster. you dont need more ram and of course u dont need any task manager to close the background apps. the system on its own knows when to free ram and use it somewhere else. if the case is u need to play a game which need more available ram than the phone can have ( for example lets say the phone needs at least 200 ram for the basic system functions so u have available 800 ram and the game needs 1gb ram then thats another case.) u can install swapper to use some disk space to do what ram does. thats all. but if u dont need or play such game then no need for swapper , no need to clear cache and no need to close background apps. if u think u will get more battery life like that , its also wrong. there is another way to get battery life. thats all. hope i covered u.

kessaras said:
my friend , android works that way. it caches everything to ram so that is faster. you dont need more ram and of course u dont need any task manager to close the background apps. the system on its own knows when to free ram and use it somewhere else. if the case is u need to play a game which need more available ram than the phone can have ( for example lets say the phone needs at least 200 ram for the basic system functions so u have available 800 ram and the game needs 1gb ram then thats another case.) u can install swapper to use some disk space to do what ram does. thats all. but if u dont need or play such game then no need for swapper , no need to clear cache and no need to close background apps. if u think u will get more battery life like that , its also wrong. there is another way to get battery life. thats all. hope i covered u.
Click to expand...
Click to collapse
You told that there is no need for task manager , so what's the use of these many task manager apps ??
I'm really confused , because as I clean my ram the speed boosts .
So we should not use task manger apps ?!!
And sth else is that , why our ram capacity is 977 instead of 1024 ?
Sent from my LG-P880 using Tapatalk 2

jasin91 said:
You told that there is no need for task manager , so what's the use of these many task manager apps ??
I'm really confused , because as I clean my ram the speed boosts .
So we should not use task manger apps ?!!
And sth else is that , why our ram capacity is 977 instead of 1024 ?
Sent from my LG-P880 using Tapatalk 2
Click to expand...
Click to collapse
where do u see speedboost when you clean ram in android ? Really ?
the only case this can happen is only if u play for example one of my favorites : dungeon hunter 4 and forget to close the app. At least for some time until the os decides that ok u just forgot it there and close it , u have a decrease of fps at your phone ... eh ok if u forget to push the little button to close an app that needs a big amount of resources, then the task manager is usefull. The apps are apps. There are also 10 different apps to sync google contacs but why use them if google contacts are syncing by default if u dont close the sync ?

lol thanks now i understand
Sent from my LG-P880 using xda app-developers app

this is normal with 4.1.2, I checked a Iconia tab with 4.1.1 and used less ram, V4.1.2 doesnt manage right the ram... try to rollback to 4.0.3 v10f or search a CM10.1 or custom rom which uses less ram :laugh:

no need more ram if you want more use swapp

Ram management

So I'm sure we all know about launcher redraws and such, how to reduce such issues? My BL is unlocked but I'm enjoying doomkernel and don't want to take the plunge into CM just yet
Sent from my C5303 using Tapatalk

@non4 said:
So I'm sure we all know about launcher redraws and such, how to reduce such issues? My BL is unlocked but I'm enjoying doomkernel and don't want to take the plunge into CM just yet
Sent from my C5303 using Tapatalk
Click to expand...
Click to collapse
You can try using Clean Master.Recently a user had problem with ram management(especially when playing games) and clean master fixed his issue.You should also try it or wait for android 4.3 and hope for a better ram management :fingers-crossed:

UltraWelfare said:
You can try using Clean Master.Recently a user had problem with ram management(especially when playing games) and clean master fixed his issue.You should also try it or wait for android 4.3 and hope for a better ram management :fingers-crossed:
Click to expand...
Click to collapse
I installed the 4.3 leak already, at least I haven't parted with stock completely thanks anyway
Sent from my C5303 using Tapatalk

UltraWelfare said:
You can try using Clean Master.Recently a user had problem with ram management(especially when playing games) and clean master fixed his issue.You should also try it or wait for android 4.3 and hope for a better ram management :fingers-crossed:
Click to expand...
Click to collapse
I tried clean master yesterday but the result was not great... I search some tuto about how to use it and if I understand well, it's just a task killer.
I also tried an experiment : I enabled the little widget (in clean master) which show the percentage of RAM used in real time, then I opened a game (dear hunter 2014).
After 1 minute in the game, the percentage of RAM used (if the information of clean master is exact) was 67% and suddenly, the widget disappeared : I think all the app in background had been closed. So why? It shouldn't happend because a lot of RAM was free.
And finally, even with all app in background killed, after 2/3 minutes, I have a FC in the game...
So if someone has an idea/theory about what happen with RAM management, I would be very happy to know!
Informations :Xperia SP Rooted, BL Locked, ROM : Existenz 1.3.7.

Jamprojekt said:
I tried clean master yesterday but the result was not great... I search some tuto about how to use it and if I understand well, it's just a task killer.
I also tried an experiment : I enabled the little widget (in clean master) which show the percentage of RAM used in real time, then I opened a game (dear hunter 2014).
After 1 minute in the game, the percentage of RAM used (if the information of clean master is exact) was 67% and suddenly, the widget disappeared : I think all the app in background had been closed. So why? It shouldn't happend because a lot of RAM was free.
And finally, even with all app in background killed, after 2/3 minutes, I have a FC in the game...
So if someone has an idea/theory about what happen with RAM management, I would be very happy to know!
Informations :Xperia SP Rooted, BL Locked, ROM : Existenz 1.3.7.
Click to expand...
Click to collapse
The little widget dissapears when a fullscreen app is being used..It continues in background.

@non4 said:
I installed the 4.3 leak already, at least I haven't parted with stock completely thanks anyway
Sent from my C5303 using Tapatalk
Click to expand...
Click to collapse
ram management in 4.3 leak seems like not working. as ram drops to as low as 14mb.

panjgoori said:
ram management in 4.3 leak seems like not working. as ram drops to as low as 14mb.
Click to expand...
Click to collapse
That is probalby because it's a leak, only meant for testing

UltraWelfare said:
The little widget dissapears when a fullscreen app is being used..It continues in background.
Click to expand...
Click to collapse
I'm not sure we are talking about the same "widget". I'm talking about the option "flotting widget". And yes, it is supposed to stay all the time on screen (and by the way it stayed a minute aproximatly).

Jamprojekt said:
I'm not sure we are talking about the same "widget". I'm talking about the option "flotting widget". And yes, it is supposed to stay all the time on screen (and by the way it stayed a minute aproximatly).
Click to expand...
Click to collapse
Check clean master settings or install battery doctor

UltraWelfare said:
Check clean master settings or install battery doctor
Click to expand...
Click to collapse
Thank you for the answer and the idea.
But I really would understand what happen with the RAM.
Before, I used LMT Launcher (pie control) and the same thing happened: LMT was killed after 1 minute in the game.
To sum up: I have 300mb RAM free, I open the game and then all app are killed. And I don't understand why. The game don't use more than 300 mb RAM no?
Plus, this problem don't happen with my brother's galaxy tab 3 (1Gb RAM too).

Jamprojekt said:
Thank you for the answer and the idea.
But I really would understand what happen with the RAM.
Before, I used LMT Launcher (pie control) and the same thing happened: LMT was killed after 1 minute in the game.
To sum up: I have 300mb RAM free, I open the game and then all app are killed. And I don't understand why. The game don't use more than 300 mb RAM no?
Plus, this problem don't happen with my brother's galaxy tab 3 (1Gb RAM too).
Click to expand...
Click to collapse
First of all you can click the thanks button .That's why it is there to shorten the length of telling thanks.Back to our point.
LMT things that your game is eating a lot ram and doesn't know if you are really using it.So it kills it to save up ram.
Each games uses different amount of ram.Like a 2d game would use 50mb ram and a 3d game may use 100mb of ram.
It depends on.Xperia SP has a bad ram management for now and onwards to the next version (4.3) it will be fixed a lot.
The rollout starts early Feb / ends of Jan...You can wait a little can't you?

UltraWelfare said:
First of all you can click the thanks button .That's why it is there to shorten the length of telling thanks.Back to our point.
LMT things that your game is eating a lot ram and doesn't know if you are really using it.So it kills it to save up ram.
Each games uses different amount of ram.Like a 2d game would use 50mb ram and a 3d game may use 100mb of ram.
It depends on.Xperia SP has a bad ram management for now and onwards to the next version (4.3) it will be fixed a lot.
The rollout starts early Feb / ends of Jan...You can wait a little can't you?
Click to expand...
Click to collapse
Of course I can wait but I'm afraid that it won't be better in the future (the leak of 4.3 don't improve this point obsviously even with more free RAM).

Jamprojekt said:
Of course I can wait but I'm afraid that it wan't be better in the future (the leak of 4.3 don't improve this point obsviously even with more free RAM).
Click to expand...
Click to collapse
Days pass devs improve...We don't know what they will bring ...I will find some more apps to free your ram later on but until the devs won't fix it you will have bad ram management(Not only you)

UltraWelfare said:
Days pass devs improve...We don't know what they will bring ...I will find some more apps to free your ram later on but until the devs won't fix it you will have bad ram management(Not only you)
Click to expand...
Click to collapse
you could also use greenify (with xposed features) and fast reboot before playing a game. works like a charm to me

Nanostray said:
you could also use greenify (with xposed features) and fast reboot before playing a game. works like a charm to me
Click to expand...
Click to collapse
Nanostray you are a magician.I totally forgot greenify(even though i have it installed)

UltraWelfare said:
Nanostray you are a magician.I totally forgot greenify(even though i have it installed)
Click to expand...
Click to collapse
If you need a really powerful combination, put the hibernate-shortcut together with the fast reboot app on the same homescreen. Then first use the fast reboot (system apps etc) and then use greenify (all other apps, including fast reboot).Instant 300mb+ RAM (with my phone)

Nanostray said:
If you need a really powerful combination, put the hibernate-shortcut together with the fast reboot app on the same homescreen. Then first use the fast reboot (system apps etc) and then use greenify (all other apps, including fast reboot).Instant 300mb+ RAM (with my phone)
Click to expand...
Click to collapse
So only 400mb are being used from the device?

UltraWelfare said:
So only 400mb are being used from the device?
Click to expand...
Click to collapse
I'm not sure, but the first 5 minutes after the killing, free RAM is usually 350-360mb

Nanostray said:
I'm not sure, but the first 5 minutes after the killing, free RAM is usually 350-360mb
Click to expand...
Click to collapse
Then how is it possible that Chrome kills music player? My Desire X has 768 mb ram and can keep both running (on a heavy sense rom)

GtrCraft said:
Then how is it possible that Chrome kills music player? My Desire X has 768 mb ram and can keep both running (on a heavy sense rom)
Click to expand...
Click to collapse
No clue mate, better drivers maybe?

[Q] how to free more ram

hi everyone i want to know how to free more ram in stock rom when i restart its almost 700mb ram usage and after normal use its goes to 1200mb but i want free memory like my nexus 4 which use ram 350mb to 700mb max please help me guys

pradatta said:
hi everyone i want to know how to free more ram in stock rom when i restart its almost 700mb ram usage and after normal use its goes to 1200mb but i want free memory like my nexus 4 which use ram 350mb to 700mb max please help me guys
Click to expand...
Click to collapse
My RAM usage is about that high, 700mb. But since the Z1 has about 1.6 gb of RAM, you shouldn't really worry. If it does get to the point where apps stop working or services become unresponsive, restart the phone or kill the app that's using the RAM. I believe when your RAM usage is about 1.5 GB it starts becoming a bit unresponsive.
Nexus uses less RAM because it only has stock apps. Sony has their own software running in the background along with some of Google's apps.

kentexcitebot said:
My RAM usage is about that high, 700mb. But since the Z1 has about 1.6 gb of RAM, you shouldn't really worry. If it does get to the point where apps stop working or services become unresponsive, restart the phone or kill the app that's using the RAM. I believe when your RAM usage is about 1.5 GB it starts becoming a bit unresponsive.
Click to expand...
Click to collapse
ya actually u r right but this is not related mobile lag or hang i just want my mobile should use less ram so i m searching for that kind of answer any way u really help me with ur fast reply thanks:good:

You have to be rooted and delete all the unnecessary application which working in background.

eclyptos said:
You have to be rooted and delete all the unnecessary application which working in background.
Click to expand...
Click to collapse
i have rooted device and how to know which app i should delete from background ?

pradatta said:
ya actually u r right but this is not related mobile lag or hang i just want my mobile should use less ram so i m searching for that kind of answer any way u really help me with ur fast reply thanks:good:
Click to expand...
Click to collapse
That doesn't makes sense. As long as your device isn't unresponsive or laggy you shouldn't bother about RAM-Usage. Android handles your available Memory quite well.
Try looking at it like this:
There isn't any use in having more and more RAM, if people on the other hand go and try to keep the RAM-usage low. As long as you don't have problems (lags or such) having free RAM is just eyecandy.
Additionally:
For every app killed, Android needs to load it from storage the next time, resulting in more battery drain than just letting it idle in memory

xXFlippyXx said:
That doesn't makes sense. As long as your device isn't unresponsive or laggy you shouldn't bother about RAM-Usage. Android handles your available Memory quite well.
Try looking at it like this:
There isn't any use in having more and more RAM, if people on the other hand go and try to keep the RAM-usage low. As long as you don't have problems (lags or such) having free RAM is just eyecandy.
Additionally:
For every app killed, Android needs to load it from storage the next time, resulting in more battery drain than just letting it idle in memory
Click to expand...
Click to collapse
ohh thanks reply and and suggestions :good:

pradatta said:
i have rooted device and how to know which app i should delete from background ?
Click to expand...
Click to collapse
It's a kind of thread like this one for Arc
but for Z1 somewhere, I remember a saw that thread with a list of apps to uninstall, search for it.

[Q] is there really 2 gb of memory in this phone?

Hi,
I'm a bit surprised that if I add free memory and used memory from the Settings app the total is about 1.7 gb. Ain't we supposed to get 2gb? I hope sony didn't do the hdd trick (see wikipedia page on Kibibyte, I cannot post link as a junior member) and even so 2000000/1048576 = 1.907 ... where's my ram?

Under CPU-Z that show : 1.732Mb.

Your OS doesn't need RAM to function right?

Dsteppa said:
Your OS doesn't need RAM to function right?
Click to expand...
Click to collapse
yes it does but I thought it will be included in the "used memory"... if the OS takes 300 mb that's ok but why I only got 900 mb free when I kill all apps? I used to have a nexus 4 and with the same amount of memory on chip there was a *LOT* more available in the settings menu.

Geolm said:
yes it does but I thought it will be included in the "used memory"... if the OS takes 300 mb that's ok but why I only got 900 mb free when I kill all apps? I used to have a nexus 4 and with the same amount of memory on chip there was a *LOT* more available in the settings menu.
Click to expand...
Click to collapse
That 900MB figure is about the same I normally have free. Various apps and services take up about 800MB on my phone, which seems excessive but I've turned off all background stuff that I can (some Google and Xperia services just won't go away, however). The only good news is that Android will free up memory if it's needed so that 900MB is not a finite figure (at least that's what I assume).

Hmm. I generally have no more than about 300 mb free memory at any given moment. Even just a few minutes after reboot. No weird apps or excessive widgets. Do you guys really have 900 mb free? You can check your memory on the fly using Cool Tool from Google Play.

The Z3C has 2GB of RAM, don't worry. What you are missing is used by shared graphics memory. BTW: This is exactly the reason why the Z3 has 3GB of memory (instead of 2GB) for its screen resolution is full HD opposed to "only" HD on the Z3C.
Anyhow, is it really necessary to start another thread on the same topic if there already is one?
http://forum.xda-developers.com/z3-compact/general/ram-2gb-1-69gb-t2941487

sxtester said:
The Z3C has 2GB of RAM, don't worry. What you are missing is used by shared graphics memory. BTW: This is exactly the reason why the Z3 has 3GB of memory (instead of 2GB) for its screen resolution is full HD opposed to "only" HD on the Z3C.
Anyhow, is it really necessary to start another thread on the same topic if there already is one?
http://forum.xda-developers.com/z3-compact/general/ram-2gb-1-69gb-t2941487
Click to expand...
Click to collapse
I have never had any doubts about the two gigs. But how much free memory do you have on your Z3C after a reboot and after a few hours of typical usage? My other phones with this much ram have generally had a lot more memory available at any given moment. Not that *free* memory is of any particular use in android, but I'm still curious to see whether your Z3C's are the same.

Fruktsallad said:
I have never had any doubts about the two gigs. But how much free memory do you have on your Z3C after a reboot and after a few hours of typical usage? My other phones with this much ram have generally had a lot more memory available at any given moment. Not that *free* memory is of any particular use in android, but I'm still curious to see whether your Z3C's are the same.
Click to expand...
Click to collapse
When I boot up the phone and immediatly check it shows some 800MB of free memory. About 500 to 600MB after a couple of days, fluctuating though. However, don't think these numbers have any meaning for Android keeps as much in memory as possible in order to increase responsiveness. It also depends on the Apps installed and the bloat disabled/blocked. Further, comparing it to other phones you had earlier might also be misleading since the version of Android could be a different one, hence comparing apples to apples would just not be possible.