why the RAM can be seen is less than the specification said - About xda-developers.com

why the RAM's mount that can be seen by the usrers is much less that the original number that the manufacture tells? can any one give me the answer ?

1GB is installed but there are always apps or system programs running. Things that run Android use some of that RAM. my Atrix has 1GB, but I can only use 800MB, thats because 200MB is always being used by the OS.

Related

372mb RAM instead of 512?

I tried searching for this one and couldn't come up with any good answers on here, but it's something that I've been wondering since I got the G2. I've noticed that no matter what rom I use, the total memory in settings>about phone never shows up more than 400mb. I can't be sure of the exact amount for all the roms I've tried in the past, but I remember thinking it peculiar, although thinking about the internal memory and the fact that it was advertised as 4gb and only registers as 1.2gb, I was thinking maybe this is a similar thing?
Sent from my G2 running GingerMex Ghost Chili
Gwanatu said:
I tried searching for this one and couldn't come up with any good answers on here, but it's something that I've been wondering since I got the G2. I've noticed that no matter what rom I use, the total memory in settings>about phone never shows up more than 400mb. I can't be sure of the exact amount for all the roms I've tried in the past, but I remember thinking it peculiar, although thinking about the internal memory and the fact that it was advertised as 4gb and only registers as 1.2gb, I was thinking maybe this is a similar thing?
Sent from my G2 running GingerMex Ghost Chili
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Get a better phone, this is normal.
Get a good one damnit
meXdroid Ghost Chilli
The rest is used up by the operating system.
Sent from my HTC Vision using XDA Premium App
Normal. My mt4g never shows more than 500mb after a fresh reboot.
Sent from prison
tackleberry said:
Normal. My mt4g never shows more than 500mb after a fresh reboot.
Sent from prison
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That's normal to..
Look at this example
You buy a computer for 400 and in order to play crysis you need to have 2000 total dollars.
The 400 is for the computer, 50 of that is for crysis and the remaining 1550 is used to increase your computers everything just to freaking play that graphic hog game..
Okay better example
You eat a twinkie, it looks good at first, the commercial urges you to buy it. Even the box makes it look good, but once you eat it you realize your stomach hurts and it was a waste of time buying something that is so fattening you wish you hadn't.. bloatware much?
Read the details here HTC Vision XDA wiki
melodicjunkie said:
That's normal to..
Look at this example
You buy a computer for 400 and in order to play crysis you need to have 2000 total dollars.
The 400 is for the computer, 50 of that is for crysis and the remaining 1550 is used to increase your computers everything just to freaking play that graphic hog game..
Okay better example
You eat a twinkie, it looks good at first, the commercial urges you to buy it. Even the box makes it look good, but once you eat it you realize your stomach hurts and it was a waste of time buying something that is so fattening you wish you hadn't.. bloatware much?
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what? how does this at all help anyone understand this.
martonikaj said:
what? how does this at all help anyone understand this.
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i think he's just saying that the OS is using up the other resources
compare it with a sony PSP.. since it doesn't run a lot of programs in the background, it can play graphics intensive games with such low clocked cpu and less ram compared to mobile phones
BTW i know you are talking about the physical memory but just wanted to bring it out there
you can check the link given by Innocent Devil and check the "The Missing 2GB" part. it explains it there
krizz07 said:
BTW i know you are talking about the physical memory but just wanted to bring it out there
you can check the link given by Innocent Devil and check the "The Missing 2GB" part. it explains it there
Click to expand...
Click to collapse
This has *ABSOLUTELY NOTHING* to do with the "missing 2GB".
The question is about RAM, not storage.
Most relevant example;
You buy a new computer with an integrated video adapter. You go into the BIOS configuration program and it has an option to change the amount of RAM being allocated to the GPU -- 64 MB, 128 MB, 256 MB, or 512 MB. You have 4 GB total and set the GPU to 512 MB. When you boot into your operating system, you only see 3.5 GB. Where is the missing 0.5 GB? Its allocated to the GPU.
In addition to allocating a whole bunch to the GPU, these phones are actually TWO COMPUTERS (with two separate CPUs) that run two different operating systems concurrently. The first one is the RADIO system, responsible for messing with the wireless. The second one is the APPLICATION system, which runs the user operating system and interface (Android). They share a common pool of RAM, so some of it is allocated to the RADIO, some is allocated to the GPU (and other media components), and only what remains is available to Android.
Thanks for those of you that gave me good answers! This clears things right up!
dhkr234 said:
This has *ABSOLUTELY NOTHING* to do with the "missing 2GB".
The question is about RAM, not storage.
Most relevant example;
You buy a new computer with an integrated video adapter. You go into the BIOS configuration program and it has an option to change the amount of RAM being allocated to the GPU -- 64 MB, 128 MB, 256 MB, or 512 MB. You have 4 GB total and set the GPU to 512 MB. When you boot into your operating system, you only see 3.5 GB. Where is the missing 0.5 GB? Its allocated to the GPU.
In addition to allocating a whole bunch to the GPU, these phones are actually TWO COMPUTERS (with two separate CPUs) that run two different operating systems concurrently. The first one is the RADIO system, responsible for messing with the wireless. The second one is the APPLICATION system, which runs the user operating system and interface (Android). They share a common pool of RAM, so some of it is allocated to the RADIO, some is allocated to the GPU (and other media components), and only what remains is available to Android.
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Very interesting, didn't know about the dual OS thing. Makes sense though, and I figured that was the case but just wanted a sure fire answer. Thanks a lot!!
dhkr234 said:
This has *ABSOLUTELY NOTHING* to do with the "missing 2GB".
The question is about RAM, not storage.
oopsie you're right.. i guess the PSP comparison is the one applicable then haha
he's absolutely right, the other ram is for the OS itself and the rest is for your other apps. this makes the phone silky smooth when running tasks unlike my touch pro 2 before, which has a very low ram plus all the "memory leakage" but it still has the best keyboard
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[Q] Kernels, Phone Setup, RAM, Scripts

Hey guys!
I noticed in the specifications of this phone, it claims to have 0.50gb of RAM (512mb) However all your kernels are around 370 of under?
Is this mistake in the specifications or are you lowering Ram for some strange reason unknown to me?
I'm using liquid smooth build#2 at the moment, but i'm only getting around 99mb free Ram.. I don't know why but it seems the Phone has less Ram then i initially thought.. However, i don't have any scripts going at the moment, i don't need battery, so any " and it's good on battery " will be respectively ignored.
I have looked around but not really found a decent enough set up for this phone yet.. Can someone please recommend me a kernel for 4.2.2 which is fast, and responsive, but also one with good Ram?
And can someone recommend some scripts worth using with this Phone? Again, don't go on about battery or SD life or phone life, idc about it, it's a spare phone..
Thanks in advance guys, could you provide me with links as well if it's not too much trouble? I prefer being directed straight to the point so i don't end up using the wrong Kernel/script..
Edit1: I'm not changing Rom. At all. unless you get an updated Carbon or 4.3.
Penguin450 said:
Hey guys!
I noticed in the specifications of this phone, it claims to have 0.50gb of RAM (512mb) However all your kernels are around 370 of under?
Is this mistake in the specifications or are you lowering Ram for some strange reason unknown to me?
Click to expand...
Click to collapse
Seems noone is willing to reply, but this probably because some searching and logical thinking would answer your questions. So since you are not willing to do it yourself others don´t mind replying to you.
So well I don´t use any scripts but regarding RAM size think about it. If you buy a PC with lets say 2GB installed RAM. Will you get also 2GB free ram by running an Operating System on it?
honeyx said:
Seems noone is willing to reply, but this probably because some searching and logical thinking would answer your questions. So since you are not willing to do it yourself others don´t mind replying to you.
So well I don´t use any scripts but regarding RAM size think about it. If you buy a PC with lets say 2GB installed RAM. Will you get also 2GB free ram by running an Operating System on it?
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Click to collapse
If you were to purchase 2gb of ram likelyhood is you will recieve 1.59+- usable Ram, free Ram would be totally different, however the way it was presented, and the way i portrayed it was thet the Ramdisk of the kernel was at 370+-, rather then 512.. I'm using a Desire C, which is running CM10 with 300mb free ram, with a 512mb ram disk, whereas with hurtskys kernel 3.0.x i get 99mb free? on 4.2.2 on my golfu i got 270mb free ram, and that was a Rom of 250mb+ and it's only at 767mhz.. yet seems smoother then the SGW? :s On paper it should be the other way around..
dun think u should worry about free ram.
android is based on linux, linux memory concept is different from other OS.
it something like " free memory is waste memory".
memory is always filled and hold so tat it wont waste time to reload.
if need more memory, system will free memory for other usage.
maybe this will help explain better, http://www.linuxatemyram.com/
Penguin450 said:
If you were to purchase 2gb of ram likelyhood is you will recieve 1.59+- usable Ram, free Ram would be totally different, however the way it was presented, and the way i portrayed it was thet the Ramdisk of the kernel was at 370+-, rather then 512.. I'm using a Desire C, which is running CM10 with 300mb free ram, with a 512mb ram disk, whereas with hurtskys kernel 3.0.x i get 99mb free? on 4.2.2 on my golfu i got 270mb free ram, and that was a Rom of 250mb+ and it's only at 767mhz.. yet seems smoother then the SGW? :s On paper it should be the other way around..
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Click to collapse
You should first read what a ramdisk is. https://wiki.archlinux.org/index.php/Ramdisk
The 270+MB in hurtskys or my kernel is the real RAM aviable. The rest is reserved for the ROM, camera, drivers and processes to work correctly.

[Q] 2Gb Vs 3Gb RAM

Hey!
Would like to know if it is noticeble the difference between the LG G3 the version of 3Gb of RAM from the 2Gb of RAM.
Any one have tested or know?
Thanks.
G3 uses 1.5 gb of ram at all times, so if you get the 2 gb version itll always be pretty close to the ceiling
nohcho said:
G3 uses 1.5 gb of ram at all times, so if you get the 2 gb version itll always be pretty close to the ceiling
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'One' of the main reasons I got the G3 was that it has 3GB ram. Most modern phones are pretty similar in terms of speed but memory makes a big difference. You can get by with 2gb but 3GB is much better and makes it much more future proof.
If you are using dual window for all apps through the little mod, you are less likely to have issues with running low on memory.
Sent from my VS985 4G using Tapatalk
Currently it doesn't really matter - Android 4.4 requires only 512 MB.
The reason why a device with much RAM shows a high RAM usage is that Android considers empty/unused RAM to be wasted. As long as there is RAM available it will fill it with apps. It doesn't require additional battery power to keep a currently unused app in the RAM, it even saves power (and time) at the app's next usage because instead of loading the app it just needs to shove it to the front.
There is a defined amount of RAM that is kept empty for instantaneous usage, but everything else will get filled - provided that there are enough apps to fill it with. Android's memory management keeps track of your app usage. Apps that are used regularly get a high priority, seldom used apps a low one. If the system runs out of memory it will close low priority apps, beginning with those that haven't been used for the longest amount of time.
The only difference between 2 GB and 3 GB is that more seldom used apps can be held in the RAM. Under normal circumstances you shouldn't be able to tell the difference between 2 GB and 3 GB. About half of the devices shipped with KitKat still only have 1 GB.
Android L will probably require 1 GB - and with the 64bit support it might even result in devices with more than 4 GB of RAM. But that will be just for marketing, not because there is a technical need. Same as now with the 3 GB devices.
But I have to admit: I am a sucker for specs as well. I think about buying a G3 and since the surcharge for the 32 GB flash and the 3 GB RAM is only about 10% if will most likely go for the bigger one. I try to hide being suckered with the argument that 32 GB of flash are a lot better than 16 GB. - RAM? There is a difference in RAM sizes?

OP3 use of RAM memory

Hello, i recently bought a One Plus 3, basically because i wanted to have more RAM, but i noticed that even though i have like 6Gb of Ram to do whatever i want, the phone uses with nothing open like 1,5Gb of RAM, the 500mb of RAM doesn't bother me because they come from apps i usually use, but the fact the launcher itself uses 1Gb is like way too much, i come from a Galaxy S3 with less than 1Gb of Ram and the TouchWiz laucher which is heavy only used like 400-500mb of RAM why is this? I know the easiest answer would be that the OP3 has more things, but do we really gain a lot more of functions that justify this heavy use of RAM from the launcher, or are we looking at not-well optimized launcher?
well your gs3 couldnt really use 1gb of ram and the oneplus 3 can. easy as that.
timrock7 said:
well your gs3 couldnt really use 1gb of ram and the oneplus 3 can. easy as that.
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that means the OP3 is not as well optimized as the touchwiz?
No.. GS3 runs older OS like kitkat but as OS Improves they require more ram OP3 is now on Nougat which is amazing so duh... It needs more ram
Unused RAM is wasted RAM. As the OP3 has 6GB of RAM, it can allocate more RAM to certain apps and the launcher to ensure that nothing is closed in the background and everything runs smooth. Don't worry about RAM usage. For example if you launch a game, the game will then have priority to ensure that it is allocated enough RAM. Android is smart in its use of RAM so no need to worry.
tommybarchi said:
Hello, i recently bought a One Plus 3, basically because i wanted to have more RAM, but i noticed that even though i have like 6Gb of Ram to do whatever i want, the phone uses with nothing open like 1,5Gb of RAM, the 500mb of RAM doesn't bother me because they come from apps i usually use, but the fact the launcher itself uses 1Gb is like way too much, i come from a Galaxy S3 with less than 1Gb of Ram and the TouchWiz laucher which is heavy only used like 400-500mb of RAM why is this? I know the easiest answer would be that the OP3 has more things, but do we really gain a lot more of functions that justify this heavy use of RAM from the launcher, or are we looking at not-well optimized launcher?
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Click to collapse
That's why we have 6 gigs of RAM. Think little bit. They can use it as we have it. Pretty simple, right?
See its similar to methodology as if you you have larger space on bed you will occupy more space, similar to this when you have higher ram allocation to particular app is continuously decreased and increased so if no other apps are running allocation to your launcher will be higher to give it a smoother operation but as you start opening more ram hungry apps the allocation then decreases allocation for uelr launcher and allocate it accordingly
Go check how RAM and RAM management works.
It's kinda pointless to waste time explaining something here if you lack the basics about this topic.
Long story short: the more you have, the more will be used. Take the same desktop OS, install it on machines with vastly different RAM capacities and you'll see different RAM usages.
Sent from my ONEPLUS A3003 using Tapatalk
The more used ram the better, at least in vast majority of scenarios

LG G7 RAM usage

Hi,
My one day old LG G7 shows 2.74Gb in use and 0.99Gb free with no apps running (there's an LG Smart Doctor app I use to look at this and cleared all apps from memory).
I have very few apps installed and disabled what I could from the preinstalled ones.
This seems very high to me. Or is it normal?
Thanks
Normal
tatalor2 said:
Hi,
My one day old LG G7 shows 2.74Gb in use and 0.99Gb free with no apps running (there's an LG Smart Doctor app I use to look at this and cleared all apps from memory).
I have very few apps installed and disabled what I could from the preinstalled ones.
This seems very high to me. Or is it normal?
Thanks
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Click to collapse
Considering the fact that's an LG phone that's pretty Normal
Sent from my Pixel 3 XL using Tapatalk
Atifbaig786 said:
NormalConsidering the fact that's an LG phone that's pretty Normal
Sent from my Pixel 3 XL using Tapatalk
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Not sure what it means, do customized Android is so heavy on RAM usage? Is it the same for Samsung S9 or HTC 12, for example?
How much RAM is free with no apps loaded on Google Pixel 3?
tatalor2 said:
Not sure what it means, do customized Android is so heavy on RAM usage? Is it the same for Samsung S9 or HTC 12, for example?
How much RAM is free with no apps loaded on Google Pixel 3?
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I owned an LG phone with 4GB ram and had about 700-1300 free at normal usage.
Sent from my Pixel 3 XL using Tapatalk
Thread moved to correct device area.
Sidenote: Un-used RAM is wasted RAM. It's nothing to worry about.
After a restart my RAM went to 1.2Gb free and about 2.5Gb in use with no apps open. I read up a bit about how Android works but still feels like this is on a very low side. How are things on your phones with no apps opened?
Redline said:
Thread moved to correct device area.
Sidenote: Un-used RAM is wasted RAM. It's nothing to worry about.
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Click to collapse
This is the correct answer to the question of the OP. Android tries to use as much RAM as possible to avoid having to restart apps.
If you have something in RAM it's going to open faster than it will from the disk, in our case flash storage.
Phones are mostly less-affected by paging to the storage when the memory is low, which is how Windows works for example.
Because the flash storage is fast (not as fast as the RAM though) it's generally un-noticable.
If something is in RAM, it's either waiting to be used or being used. These include services from apps that might be closed but run in the background. Keeping these in RAM uses less power than asking the flash storage for the data every-time it's needed.
You don't need to worry about specifically high RAM usage. If you have the 4GB RAM model, then having about 1GB free, give or take a few hundred MB depending on your apps, is normal.
I have just under 1GB free with nothing open on a slimmed-down LineageOS V20 that only has 3GB of RAM. You can assume 2-3GB of Android system usage on a stock ROM depending on how long the device has been on for, how heavily the manufacturer has modified/bloated it, and other varying factors.
This leaves you with the remaining amount of RAM you've mentioned for you to do what you want with your apps. 1.2GB free and 2.5GB in use is roughly where it should be on freshly-booted stock ROM.
The only way to increase the RAM you have would be to root and de-bloat it by freezing the apps you don't use.
Facebook and Messenger can easily hog up to half a gig of RAM in total after a while, and using the Lite versions of apps like these can help.
I wouldn't worry at all if I was you. When my V20 was running a stock ROM, even after a week of usage I still had about half a gig of RAM left. If you're constantly cleaning it then it means apps have to stop and re-start services after the clear is complete, which wastes time, power and efficiency.
Android is good at what it does. Let it do it
Redline said:
If you have something in RAM it's going to open faster than it will from the disk, in our case flash storage.
Phones are mostly less-affected by paging to the storage when the memory is low, which is how Windows works for example.
Because the flash storage is fast (not as fast as the RAM though) it's generally un-noticable.
If something is in RAM, it's either waiting to be used or being used. These include services from apps that might be closed but run in the background. Keeping these in RAM uses less power than asking the flash storage for the data every-time it's needed.
You don't need to worry about specifically high RAM usage. If you have the 4GB RAM model, then having about 1GB free, give or take a few hundred MB depending on your apps, is normal.
I have just under 1GB free with nothing open on a slimmed-down LineageOS V20 that only has 3GB of RAM. You can assume 2-3GB of Android system usage on a stock ROM depending on how long the device has been on for, how heavily the manufacturer has modified/bloated it, and other varying factors.
This leaves you with the remaining amount of RAM you've mentioned for you to do what you want with your apps. 1.2GB free and 2.5GB in use is roughly where it should be on freshly-booted stock ROM.
The only way to increase the RAM you have would be to root and de-bloat it by freezing the apps you don't use.
Facebook and Messenger can easily hog up to half a gig of RAM in total after a while, and using the Lite versions of apps like these can help.
I wouldn't worry at all if I was you. When my V20 was running a stock ROM, even after a week of usage I still had about half a gig of RAM left. If you're constantly cleaning it then it means apps have to stop and re-start services after the clear is complete, which wastes time, power and efficiency.
Android is good at what it does. Let it do it
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Ok then, so nothing to worry here, it seems. I'll just stop checking it as long as I see no lag. Which I don't

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