LG G2 and auto ram optimisation - G2 Q&A, Help & Troubleshooting

Hi guys.
I've been quite bothered by the fact that 4gb ram phones coming up, so I decided that I would do a test on how my LG phone handles the ram. I hope some experienced android users can clarify this for me because the only other android device I've had is a android tablet which I've played quite a bit with on my own.
I thought I wanted to do a stress test to see of the device would lag after having used all available ram. Problem is just I wasn't able to use all ram even with over a dozen open apps and so on. While I now have clarified that more than 2gb of ram really isn't needed ATM I would really love an explanation of why I wasn't able to get below 400 Mb free ram. When using the device normally I occasionally see only 300 Mb of free ram. Anyway the device was still working smoothly without lags and stutter
Sent from my LG-D802 using xda app-developers app

just the way android ram works really. Its different then windows, where no free ram means performance issues. Like no free disk space on Iphones.
Sent from my LG-D802

Related

why does the vibrant not recognize all the ram even on 2.2

Guys, how can I get my samsung vibrant to recognize all the 512mb of ram. I thought froyo has all the software and kernels and stuff to recognize the full 512mb of my phone not just 308mb. Do I need to flash a new kernel or something. I have the nero v3 rom on my phone, with voodoo enabled. So how do we fix this?
308 MB you phone is showing you is the correct amount, your phone does have 512 MB of RAM total. However, part of that is used by the phone and android system to supply your phone's graphics card and other functions such as a RAM disk if I remembered correctly. In addition, You don't want your phone to run out of memory because you are running a game and missed that all important call right? well part of the RAM is reserved to keep the "phone" portion of the Android working.
It is a common misconception that Froyo will "unlock" this hidden RAM, but in reality we are already using all the RAM that came with the phone. The reason some HTC phone shows 512 MB of RAM is either because the phone is reading the "TotaL" amount of RAM or in the case of G2 the phone actually came with more than 512 MB of ram but advertised as 512 MB (the extra RAM is used in the same way as the Vibrant, GPU/Ram disk/Android, etc).
What about the iphone, my cousin always gets 300t mb of free memory on his iphone 4. Android can't be that much of a ram hog. By the way doesn't the power vr gpu have dedicated ram for it self, I man come on, its a high end phone. Samsung is really messing up on there phones.
My question is *why* do you need more free RAM? Are you really running out, ever? Don't think of it like a PC where you need free RAM as overhead when apps start utilizing more and more. Android will free up more RAM as necessary by killing apps that are preloaded in the background. I've never run into a situation where I've run out of memory, couldn't even tell you what happens when you do. I don't use task-killers, run a ton of widgets, and I've never seen it dip below 60-70mb free.
Kubernetes said:
My question is *why* do you need more free RAM? Are you really running out, ever? Don't think of it like a PC where you need free RAM as overhead when apps start utilizing more and more. Android will free up more RAM as necessary by killing apps that are preloaded in the background. I've never run into a situation where I've run out of memory, couldn't even tell you what happens when you do. I don't use task-killers, run a ton of widgets, and I've never seen it dip below 60-70mb free.[/QUOTE
Yes I do run out of ram. Every time I watch a flash video and while leaving no heavy ram using apps to be multitasked, after I finish my vigo and go back to my other apps I finder them killed. It gets on my nerves. I expected more out of 512mb. I also spent too much money for my phone for it to perform under shar what it's specified.
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I run autokiller and always have 150ish.free. even if I didn't run it I would never run out id ram even when I had my g1
Sent from my SGH-T959 using XDA App
So much for multitasking, right?
Phone has 384 app accessible ram. Typically runs with ~100ish free after a fresh boot with a stock ROM. The browser can take ~30mb, so that doesn't leave much to multitasking with. When ur phone starts auto killing performance decreases. They should have h put the aeverised ram in the phone, instead of playing the semantics game. Even Verizon updated their fascinate specs to change that to 384.
I'll make sure to check this before I buy my next phone in a couple weeks tho (soooo excited!!!).
Sent from my SGH-T959 using XDA App
N8ter said:
So much for multitasking, right?
Phone has 384 apparently accessible ram. Even Verizon updated their fascinate specs to change that.
Galaxy tab uses the same social and its alwaysvshowing 400+ MB ram on everyone I checked.
I'll make sure to check this before I buy my next phone in a couple weeks tho (soooo excited!!!).
Sent from my SGH-T959 using XDA App
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This means that this is a software issue, not hardware because the tab has the same processor found in the vibrant. 400t is allot better than just 300, not only but the tab also requires more resources with it's 720p screen.
helikido said:
This means that this is a software issue, not hardware because the tab has the same processor found in the vibrant. 400t is allot better than just 300, not only but the tab also requires more resources with it's 720p screen.
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Click to collapse
It's not a software issue.
And yes, 100MB RAM in a smartphone is a lot.
It's like getting a computer with 4GB RAM and ripping a 2GB RAM stick out out of it.
There's 128 MB RAM that isn't accessible to the system The OS itself probably uses abut 100+ MB RAM, and once you start installing applications/services that start eating up resources.
Some say the 128 is dedicated graphics ram (fast graphics RAM to allow the Hummingbird to achieve it's faster GPU performance). What a waste. I'll make sure my next phone isn't built like a game console.
They should have at least added another 64MB RAM the way HTC did in the HD2/HD7.
The phone has as much App RAM as a mid-range Android device (think HTC Aria). It's factorable, especially if you want to multitask. Running multiple applications on this phone, I basically have to manage my apps they way I did on Windows Mobile (i.e. open task manager to FC the browser, etc.) because you don't want to be playing a game or doing anything somewhat important when the phone starts trying to auto-close background tasks to recover RAM (and some services will simply restart themselves immediately).
Good phone, bad execution in the software, and they should not have advertised it as having 512 RAM, because to anyone that isn't an idiot Graphics RAM is not synonymous with Application RAM, and 128 less RAM is quite a big chunk to be missing.
...Graphics RAM is not synonymous with Application RAM, and 128 less RAM is quite a big chunk to be missing.
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Click to collapse
Virtually every computer on the shelf at Wally-World and Best Buy do exactly this - the motherboard graphics chip uses system RAM to operate. Admittedly does not directly correlate to a phone, and they should make a disclosure, but there is ample precedent in the general marketplace.
I don't understand why some of you attribute a free RAM amount (or lack thereof) as a memory hog?
If RAM is used instead of slower disk I/O it translates to a better user experience, the OS is good on keeping the taps on the memory and clean the thrash by itself, but nothing can prevent poor coding and a single rouge app can become the memory hog independent of how much RAM your system has, it might eat all of it.
The real problem is that the phone has only about 150mb of free ram and that'd on boot up. If the phone does have some ram dedicated to the gpu from the system ram (known as shared ram) then why
Don't other android devices do that too, and the iphone has more free ram on boot up then what is user acsesable to me. I thought the gloriose sgx540 had it's own high end dedicated ram for graphics?
N8ter said:
So much for multitasking, right?
Phone has 384 app accessible ram. Typically runs with ~100ish free after a fresh boot with a stock ROM. The browser can take ~30mb, so that doesn't leave much to multitasking with. When ur phone starts auto killing performance decreases. They should have h put the aeverised ram in the phone, instead of playing the semantics game. Even Verizon updated their fascinate specs to change that to 384.
I'll make sure to check this before I buy my next phone in a couple weeks tho (soooo excited!!!).
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
If you hate your vibrant so much why do you spend so much time on the forums? Dont seem to contribute much so just go get a new phone and leave us alone.
ionic7 said:
If you hate your vibrant so much why do you spend so much time on the forums? Dont seem to contribute much so just go get a new phone and leave us alone.
Click to expand...
Click to collapse
There is an ignore list feature on these forums
helikido said:
The real problem is that the phone has only about 150mb of free ram and that'd on boot up. If the phone does have some ram dedicated to the gpu from the system ram (known as shared ram) then why
Don't other android devices do that too, and the iphone has more free ram on boot up then what is user acsesable to me. I thought the gloriose sgx540 had it's own high end dedicated ram for graphics?
Click to expand...
Click to collapse
And how is that a problem?
Do you have an immediate need for something that requires 150+ MB after the boot?
Here's an absolutely healthy linux system with 2GB of RAM:
Code:
free
total used free shared buffers cached
Mem: 2049868 1982076 67792 0 146988 840748
-/+ buffers/cache: 994340 1055528
Swap: 6008824 820 6008004
I will be worried if my swap is being used a lot, but using my memory on the system is good.
I agree with this. 512 advertised, 308 seen, 150 Available after a boot....my phone keeps running out of memory so often its sad. It can never run my music player and my gps software at the same time. When I switch between the 2 apps, it closes the other one and its really really sad to see. ****ty job samsung, ****ty job. I hope the galaxy s mod gets ported for the ram which opens 338mb. At least its something.
Sent from my SGH-T959 using XDA App
}{Alienz}{ said:
It can never run my music player and my gps software at the same time.
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Click to collapse
I just went on a 700+ mile car trip with the music player and gps navigation software running the entire time. No problem. Was even able to simultaneously play games while my wife was driving.
}{Alienz}{ said:
I agree with this. 512 advertised, 308 seen, 150 Available after a boot....my phone keeps running out of memory so often its sad. It can never run my music player and my gps software at the same time. When I switch between the 2 apps, it closes the other one and its really really sad to see. ****ty job samsung, ****ty job. I hope the galaxy s mod gets ported for the ram which opens 338mb. At least its something.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
you have a rouge app/apps running that memory hog your phone, getting 30MB of more available RAM will not save it. You need to find what is hogging your phone, I am yet to see a message that my phone is low on memory, sometimes I do a lot of browsing, txt, mytracks and playing music with Pandora or stock player at the same time and it never complained that it was low on memory to run these.
ionic7 said:
If you hate your vibrant so much why do you spend so much time on the forums? Dont seem to contribute much so just go get a new phone and leave us alone.
Click to expand...
Click to collapse
Who said that I hate my phone.I'm only truong to find out shar mashes it not recognize all it's ram. In this era, ram is a huge factor to run apps and most importantly newer os updates like ginger bread and honey comb. Don't wanna run out of ram right when you boot up your phone don't you? And if the tab can recognize more ram than this then this means it does gave something to do with software. I guess we have to wait for samsung to release froyo, because im sure that they will gave all threw tweaks that will boost this phone very high, bedside from shar I've noticed, all the,roms out thete dont really boost this phone allot. How do I know,i gave nero v3 and that only boosted me to 1137 on quadrant from 2.1 and with voodo enabled I get 1500 max on quadrant. Oclf the same thing too. so all I'm saying is that it's definitely a software issue. Pretty sure android does not hog 400mbt. And no sgx has its own ram for sure.
I still don't get how you're running out of RAM. Right now I've got Winamp streaming through BT and have started streaming a Flash video. Also running are XDA and Maps. No hiccups.
Sent from my SGH-T959 using XDA App

Memory on phone always low?

I've noticed that on my phone the available memory is usually somewhere around 90-110.. Is this normal?
Alot of other android phones with 512mb of ram seem to have like 200mb free all the time, why the difference?
Probably because the vibrant doesn't have 512mb of ram
You really don't have to worry about that, Android is built to take care of our RAM, multi-tasking.
So go ahead and uninstall that task killer.
Maybe your phone have the Auto Memory Manager software
I prefer to just have the task killer... every once i na while when it gets really slow I just pop it open and close everything out and it works wonderful.
Are you on CM7?
Sent from my SGH-T959 using XDA App
Yes I amm...
FYI that is plenty of ram, and completely normal, i normally have less ram available for use around 60mb, problem with killing tasks is that it can end up eating battery life as certain programs auto restart and while they are in ram they arent using any processing power, but when you kill them and they come back you end up unnecessarily eating power.
if you do it only occasionally to kill off rogue apps that dont like to go away after you have exited that is fine, but do not set to auto kill.
the reason for your lower ram availability is that tho the vibrant does have 512 mb of ram a good portion of it is dedicated to system functions only leaving around 300-350 MB for the user. unless you are leaving multiple games open you shouldnt have any issues with ram as previously stated due to the built in ram maintenance in android
And ive heard that android works best when its ram ia being used up... strange huh?
Sent from a cell tower to the XDA server to you.
Task killers are the best I manage memory my self an battery is better with it
Sent from my GT-I9000 using XDA Premium App
younix258 said:
And ive heard that android works best when its ram ia being used up... strange huh?
Sent from a cell tower to the XDA server to you.
Click to expand...
Click to collapse
yes. free ram is wasted ram.
Id rather have free memory for expansion if need be. i think of it like this. Would my pc run well if it only had 60mb free out of 512? Hell no
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jwleonhart said:
Id rather have free memory for expansion if need be. i think of it like this. Would my pc run well if it only had 60mb free out of 512? Hell no
Sent from my SGH-T959 using XDA Premium App
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yes, if you were running linux. which is what android is.
Granted free ram is wasted but not enough free ram is why dungeon defenders barely works, the developers suggest 256mb ram and as hard as I try I couldn't free up 200mb even. But the 339mb or whatever isn't all that much to begin with.
Sent from my Transformer TF101 using XDA Premium App
degeneration said:
Granted free ram is wasted but not enough free ram is why dungeon defenders barely works, the developers suggest 256mb ram and as hard as I try I couldn't free up 200mb even. But the 339mb or whatever isn't all that much to begin with.
Sent from my Transformer TF101 using XDA Premium App
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Click to collapse
Dungeon Defenders works good on our phone. I played it for months. But it lags on larger map because it is really for dual core phones.
Sent from my SGH-T959 using XDA App
Dungeon Defenders is a dog on anything other than low graphics and single player. Start up multiplayer and the phone can't handle it for anything.
I really would like to be able to have more free memory. Right now i'm showing 32mb free and honestly to me that's just too little to have free at any one time.
Can someone remind me why our actual 512mb of ram is limited to 339mb? I thought our GPU also had independant memory or am I wrong? Out of everything samsung did.... a little bit more memory wouldn't have killed them.
jwleonhart said:
Dungeon Defenders is a dog on anything other than low graphics and single player. Start up multiplayer and the phone can't handle it for anything.
I really would like to be able to have more free memory. Right now i'm showing 32mb free and honestly to me that's just too little to have free at any one time.
Can someone remind me why our actual 512mb of ram is limited to 339mb? I thought our GPU also had independant memory or am I wrong? Out of everything samsung did.... a little bit more memory wouldn't have killed them.
Click to expand...
Click to collapse
Are you having trouble with multitasking?
Sent from my SGH-T959 using XDA App
jwleonhart said:
Dungeon Defenders is a dog on anything other than low graphics and single player. Start up multiplayer and the phone can't handle it for anything.
I really would like to be able to have more free memory. Right now i'm showing 32mb free and honestly to me that's just too little to have free at any one time.
Can someone remind me why our actual 512mb of ram is limited to 339mb? I thought our GPU also had independant memory or am I wrong? Out of everything samsung did.... a little bit more memory wouldn't have killed them.
Click to expand...
Click to collapse
We do have 512 but the system requirements uses a good portion of it that's why you see 339.It automatically frees up more ram when it needs to.I wouldn't worry about it.I shortcuted "running services " on my home screen and sometimes kill of unnecessary apps.
jwleonhart said:
Id rather have free memory for expansion if need be. i think of it like this. Would my pc run well if it only had 60mb free out of 512? Hell no
Sent from my SGH-T959 using XDA Premium App
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Ive had to explain this a million times...android is not windows! You cant even compare how your phone works with how your pc works. Android is highly optimized for small footprint systems. It handles memory management far more efficiently than your desktop which almost doesnt need it due to large amounts of ram. A PC programer doesnt even need to take into account how much ram their process uses anymore (well, to a degree, unless it fills it all, which isnt good and usually doesnt happen) Dungeon Defenders also will easily run on our phone, when it opens, android will free the memory it needs for the app. Task killers are also a waste now since by android standards we have more than enough memory.
So to sum it all up
Android built to manage memory well, and for small footprint systems with lower amounts of ram
Desktop OS will use more ram as it has TONS of it and doesn't need to conserve battery, so it can have all kinds of processor and memory eating stuff running as it wants.
Sent from my SGH-T959 using Tapatalk

Poll: How much RAM do you use?

How much RAM are you using right now? I'm using 1.14GB/1.62GB
Seems like Sammy made a good call with 2GB of RAM. I didn't know an android device could make use of this much... and yet I frequently see myself using 1-1.3GB. In comparison, the 1GB models have a max of around 700MB available, which means I exceed this with my usage already, and I don't consider myself a "heavy" user. Even after clearing my RAM, it sits at around 600MB, again almost as much as most other phones have available. In the next year I can definitely see RAM usage increase to take full advantage of the 2GB, it almost does already.
Opinions? Am I wrong in thinking this is much more important than most people said it was going to be?
Well keep in mind the kernel is going to use more RAM if it has more to use just for cache purposes. So on a device with smaller RAM would be managing it differently.
I am currently only using 616MB with about 8 apps open.
punzada said:
Well keep in mind the kernel is going to use more RAM if it has more to use just for cache purposes. So on a device with smaller RAM would be managing it differently.
I am currently only using 616MB with about 8 apps open.
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Click to collapse
Well said!
And I'm currently using .95GB. The 2 GB of ram is awesome. I love how much better everything runs when your app's / programs are cached and not closed. Have 16 GB in my pc for the same reason.
Sent from my SCH-I535 using xda app-developers app

Using full ram with root

I've read that 1 of the 2gb of RAM is used for the touchwiz so you effectively only have 1gb. If you install a custom rom, ie. cyanogenmod, do you get to use the full 2gb then?
Filiusincendia said:
I've read that 1 of the 2gb of RAM is used for the touchwiz so you effectively only have 1gb. If you install a custom rom, ie. cyanogenmod, do you get to use the full 2gb then?
Click to expand...
Click to collapse
Pretty sure its ICS that takes up the space and its not a full GB. I don't have the phone but a friend has around 1.6 - 1.7 Gigs free at max.
I don't think that would work out, considering the international GS3 has 1GB of RAM and runs TouchWiz.
So much confusion, let's spell this out. First of all our phones have 2gb ram, period. The GPU requires about 0.38gb of the system's 2gb because it doesn't have its own onboard memory. So no matter what software you run, you'll be starting out around 1.62 available.
Different operating systems, frameworks, skins, and applications will have different memory footprints. Touchwiz is probably a bit heavier than AOSP (CM/AOKP), so after a clean boot you'll probably have more free ram running an AOSP variant.
Honestly its all kind of moot at this point however, because I doubt in either situation most people get anywhere near using the all remaining RAM with current ROM offerings. Key lime pie may be another story.
Yeah to his point about not using the RAM is just stupid, unused ram is wasted ram meaning you have it for nothing, for example on stock cm9 you got 1.2 gb free most of the time, 500-600mb free, touchwiz manage ram better but still leaves a lot behind, look up what ram does and you will understand why unused ram is useless
Sent from my SGH-T999 using Tapatalk 2
jgalan14 said:
Yeah to his point about not using the RAM is just stupid, unused ram is wasted ram meaning you have it for nothing, for example on stock cm9 you got 1.2 gb free most of the time, 500-600mb free, touchwiz manage ram better but still leaves a lot behind, look up what ram does and you will understand why unused ram is useless
Sent from my SGH-T999 using Tapatalk 2
Click to expand...
Click to collapse
Isn't it ideal to have unused RAM so that when you open apps and multitask, you the memory to keep them alive? Maybe I'm misinterpreting, but if we never had unused Ram then we would never be able to multitask, right?
Spartoi said:
Isn't it ideal to have unused RAM so that when you open apps and multitask, you the memory to keep them alive? Maybe I'm misinterpreting, but if we never had unused Ram then we would never be able to multitask, right?
Click to expand...
Click to collapse
To a certain extent, I for one think there's no reason to try and utilize all of it for nothing. And it's pointless to complain about having extra
Sent from my SPH-L710 using Tapatalk 2
This is quote from something I read in pc mag
" This has to do with extremes. Remember that every so many cycles (don't remember on current ram), your memory has to completely refresh its contents. If you have an extra 16GB that you never use, then you waste time refreshing all of that ram. Also on this note, higher densities, and larger quantities are harder on your controller. For maximum speed and stability, use ram appropriate for your usage pattern"
Sent from my SGH-T999 using Tapatalk 2
jgalan14 said:
This is quote from something I read in pc mag
" This has to do with extremes. Remember that every so many cycles (don't remember on current ram), your memory has to completely refresh its contents. If you have an extra 16GB that you never use, then you waste time refreshing all of that ram. Also on this note, higher densities, and larger quantities are harder on your controller. For maximum speed and stability, use ram appropriate for your usage pattern"
Sent from my SGH-T999 using Tapatalk 2
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Click to collapse
While that is true, ram come in discrete chunks and 2 gb is noticeably better than 1. At a certain threshold the memory manager kills off old apps to free up ram. More ram means more recently used apps remain loaded and available sooner plus i have no issues with many pages open in a browser. I typically run with around 600 mb free. Only my dell streak i would often be under 100 and unless i manually closed apps it really bogged down.
Sent from my NookColor using xda app-developers app
1gb of ram is not for TW and the rest for apps....its 2gb total...in reality like 15mb total

[Q] RAM missing?

Hi
I´m kind of new here but still haven´t found an answer why my Nexus only shows 1097 RAM instad of 2000? Even tried different hardware checker and they all tell me the same. Have I made I bad flash?
Davidkallen said:
Hi
I´m kind of new here but still haven´t found an answer why my Nexus only shows 1097 RAM instad of 2000? Even tried different hardware checker and they all tell me the same. Have I made I bad flash?
Click to expand...
Click to collapse
The 2GB ram on the device must accommodate both the operating system and graphics Ram before any apps are loaded. So what you see is normal. This is no different for laptops. Also the 16 or 32 GB internal storage shows less after formatting and Android OS plus Google apps (Gapps) are installed. At least with the Nexus 10 you have much less bloatware compared to other Tablets (eg. Samsung).
Sent from my Nexus 10 using XDA Premium HD app
3DSammy said:
The 2GB ram on the device must accommodate both the operating system and graphics Ram before any apps are loaded. So what you see is normal. This is no different for laptops. Also the 16 or 32 GB internal storage shows less after formatting and Android OS plus Google apps (Gapps) are installed. At least with the Nexus 10 you have much less bloatware compared to other Tablets (eg. Samsung).
Sent from my Nexus 10 using XDA Premium HD app
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Click to collapse
Thanks for you answer 3Dsammy.
I understand that you use RAM when things are installed, But I still dont get it. When I was on stock it showed in settings 2 gb RAM. And now Hardware info (app) System RAM 1097?. Same with Clean sweeper.
Davidkallen said:
I understand that you use RAM when things are installed, But I still dont get it. When I was on stock it showed in settings 2 gb RAM. And now Hardware info (app) System RAM 1097?. Same with Clean sweeper.
Click to expand...
Click to collapse
Nexus 10 has never shown 2gb available, I've had it since launch and I believe the most I've ever seen was back on 4.2 was about 1400MB or so, and it has gone down from there on each update. You never get what they advertise on the box, every single one of my devices has less than whats advertised, my Note 3 is supposed to have 3gb available, but really its only 2.38 after its said and done..
1098 is normal on 4.4.2 for N10, I've attached a shot from mine ... I can only assume most of it is being reserved for the GPU and its super high resolution.
** These threads might have more information you are looking for.
http://forum.xda-developers.com/showthread.php?t=2377356
http://forum.xda-developers.com/showthread.php?t=2463178
Hi,
As already stated here, just clearing a little the information for you .
The Nexus 10 has a huge screen resolution, therefore it requires a more powerful GPU, even having a pretty powerful graphic processors which is the MALI, it's not powerful enough for the 1600p screen, so they allocated ≈1GB to the graphic unit to prevent any possible issues.
Also, there are some apps running in background, so it takes some RAM too.
Hope this clarifies a little ,
~Lord
"All I Ever Needed Was A Little Piece of Hope" - World of Fantasy (Helloween)
Sent from my monstrous Xperia Z1
Thank for your help:good:
I did notice that with slim kat 4.2.2 I have 1647 ram available and with 4.4.2 slim kat I had 1099.
so I thought that Kit Kat uses less RAM but I don't really see it with those comparisons.
Joe

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