Why does it say I only have 1794 mb of RaM? - Nexus 5 Q&A, Help & Troubleshooting

When I go to Antutu or Ram Booster they say I only have 1794 mb of ram what happen to the other 250 mb?

fleen said:
When I go to Antutu or Ram Booster they say I only have 1794 mb of ram what happen to the other 250 mb?
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Hi,
Nothing wrong, the rest is for system, GPU (in short)... Not all the RAM is available for the userspace.

Hammer_Of_The_Gods said:
Hi,
Nothing wrong, the rest is for system, GPU (in short)... Not all the RAM is available for the userspace.
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Thanks for the quick reply, does this happen to all phones or just the nexus 5?
I feel like it should be better implemented like have 250mb of its own ram or use at it is needed not just take away from me 250 mb of ram.

fleen said:
Thanks for the quick reply, does this happen to all phones or just the nexus 5?
I feel like it should be better implemented like have 250mb of its own ram or use at it is needed not just take away from me 250 mb of ram.
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As far as I know, at least for all devices I owned, it's always the same thing (some devices with 1Gb RAM had something like 768 Mb available stock)...
There is absolutely nothing wrong with the available RAM detected from Antutu or RAM Booster or another apps.

fleen said:
Thanks for the quick reply, does this happen to all phones or just the nexus 5?
I feel like it should be better implemented like have 250mb of its own ram or use at it is needed not just take away from me 250 mb of ram.
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It is like that for absolutely everything. PCs/Notebooks, Tablets, Phones, etc. It's normal.

Just remember one thing that with a build.prop edit (by adding a line) you can fake the available RAM in Settings/About phone (like you can show some CPU info), but I don't know if some apps detect it (I think but... not sure ).
Maybe something like "ro.product.************" .
Maybe a Google search will give you the trick, just a cosmetic thing since the real available RAM is "hardcoded"

mmmmBACON said:
It is like that for absolutely everything. PCs/Notebooks, Tablets, Phones, etc. It's normal.
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Don't pc graphic cards have dedicated memory?
So they don't take "my" memory

fleen said:
Don't pc graphic cards have dedicated memory?
So they don't take "my" memory
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Yes, but those are dedicated "add-on" cards and are generally limited to PCs and gaming notebooks. The OS would still be using the main system memory. If you had 16GB RAM, the OS and any other processes would be using it regardless. You would never have 16GB available to you. Also, even if you had dedicated memory on the graphics card some of it will also be used regardless without your knowledge.
Any SoC uses the systems main memory.
If you want the full 2GB available to you, have fun never turning on your phone. If you want 2GB only for you, then the system has nothing to run on.
Memory is there to be used. Having a separate section for the OS and 2GB only for your choosing is pointless and inefficient.

mmmmBACON said:
Yes, but those are dedicated "add-on" cards and are generally limited to PCs and gaming notebooks. The OS would still be using the main system memory. If you had 16GB RAM, the OS and any other processes would be using it regardless. You would never have 16GB available to you. Also, even if you had dedicated memory on the graphics card some of it will also be used regardless without your knowledge.
Any SoC uses the systems main memory.
If you want the full 2GB available to you, have fun never turning on your phone. If you want 2GB only for you, then the system has nothing to run on.
Memory is there to be used. Having a separate section for the OS and 2GB only for your choosing is pointless and inefficient.
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I think what the OP is trying to ask is why is the hardware only detecting 1794mb of total actual RAM? Not how much ram the OS utilizes.
Sent from my Nexus 5 using XDA Premium 4 mobile app

mmmmBACON said:
Yes, but those are dedicated "add-on" cards and are generally limited to PCs and gaming notebooks. The OS would still be using the main system memory. If you had 16GB RAM, the OS and any other processes would be using it regardless. You would never have 16GB available to you. Also, even if you had dedicated memory on the graphics card some of it will also be used regardless without your knowledge.
Any SoC uses the systems main memory.
If you want the full 2GB available to you, have fun never turning on your phone. If you want 2GB only for you, then the system has nothing to run on.
Memory is there to be used. Having a separate section for the OS and 2GB only for your choosing is pointless and inefficient.
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I don't have a problem (well I do but not as much) with the OS and GPU use the 2GB of ram I have available but it should be something like like 300mb out of 2048mb (300/2048) of available ram not just cut my 2Gb of ram to 1794. What if the OS only needs 200 I still would not have 1894mb my max available ram is always 1794.

fleen said:
I don't have a problem (well I do but not as much) with the OS and GPU use the 2GB of ram I have available but it should be something like like 300mb out of 2048mb (300/2048) of available ram not just cut my 2Gb of ram to 1794. What if the OS only needs 200 I still would not have 1894mb my max available ram is always 1794.
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its not out of 2048MB for one
its 2GiB, not 2GB
from wikipedia
Although most manufacturers of hard disk drives and flash-memory disk devicesdefine 1 gigabyte as 1000000000bytes, software like Microsoft Windows reports size in gigabytes by dividing the total capacity in bytes by 1073741824 (230 = 1 gibibyte), while still reporting the result with the symbol "GB". This practice causes confusion, as a hard disk with an advertised capacity of, for example, "400 GB" (meaning 400000000000bytes) might be reported by the operating system as only "372 GB" (meaning 372 GiB). Other software, like Mac OS X 10.6[5] and some components of the Linux kernel[6] measure using the decimal units. The JEDEC memory standards uses the IEEE 100 nomenclatures which defines a gigabyte as 1073741824bytes (or 230 bytes).
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Zepius said:
its not out of 2048MB for one
its 2GiB, not 2GB
from wikipedia
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2 GiB is 1024x1024x1024. HDD / MMC / SSD use GB (1000x1000x1000) not GiB, however this is for storage. RAM is usually binary 1024... so it most likely is out of 2048.
http://en.m.wikipedia.org/wiki/Gigabyte
Sent from my Nexus 5 using Tapatalk

fleen said:
I don't have a problem (well I do but not as much) with the OS and GPU use the 2GB of ram I have available but it should be something like like 300mb out of 2048mb (300/2048) of available ram not just cut my 2Gb of ram to 1794. What if the OS only needs 200 I still would not have 1894mb my max available ram is always 1794.
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Oh, well don't worry, you have 2GB RAM. It might just be the way it is displayed in Antutu. CPU-Z displays the total amount of RAM as 1855MB. Not exactly consistent between programs.

mmmmBACON said:
Oh, well don't worry, you have 2GB RAM. It might just be the way it is displayed in Antutu. CPU-Z displays the total amount of RAM as 1855MB. Not exactly consistent between programs.
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I will just try to ignore this and I will be happier I guess, my cpu-z still says 1794MB total ram.

The device has 2GB of RAM but you the "BIOS" or whatever controller is in there allocates some for itself and the hardware in the phone (mainly GPU) and the rest is left to the OS.
Sharing RAM is good in general but many systems require X amount of RAM whether it's actively being used or not as it's designed to be able to use it. if it were to call on that memory address and it's full the system would crash (or a STOP error).
So instead of sharing it and allocating it as needed, it's locked off totally from the OS in the event it's ever needed by the hardware.

rootSU said:
2 GiB is 1024x1024x1024. HDD / MMC / SSD use GB (1000x1000x1000) not GiB, however this is for storage. RAM is usually binary 1024... so it most likely is out of 2048.
http://en.m.wikipedia.org/wiki/Gigabyte
Sent from my Nexus 5 using Tapatalk
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And that's why they make 512MB RAM modules instead of 500MB

fleen said:
Thanks for the quick reply, does this happen to all phones or just the nexus 5?
I feel like it should be better implemented like have 250mb of its own ram or use at it is needed not just take away from me 250 mb of ram.
Click to expand...
Click to collapse
Happens to all phones.

Ok guys i get the gist of it now, thank you all.

Related

[Q] available memory only showing less than 400m

How come my transformer onlyy show less than 400m memory available in the task killer?. I removed all the Widgets and haven't install any extra apps besides angry bird games. The available memory still showing less than 500M. Hows your transformer available memory show?
With 512 MB RAM you get 100-250 MB of free RAM, so >400MB is more than enough for everything !
And you have 1GB for USE not for FREE/USELESS ...
Sent from my HTC HD2 using XDA App
But I thought it has 1gb of ram?
sic_lic1o1 said:
But I thought it has 1gb of ram?
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It is.. but the graphics and the OS take up a chunk of it don't forget.
I've seen this question pop up on ever forum for every 1GB device I've looked at so far. There's 1GB of RAM minus what the GPU uses minus what the OS uses. Should be an automatic sticky.

[Q] Possible to unlock the extra 3Gb of storage RAM?

The EVO 3D is basically the same phone as the Sensation with the addition of 3 extra Gb of RAM. The spec sheet for the Sensation on HTCs site lists 4Gb of RAM with a note that only 1Gb is user accessible.
Internal Memory
768 MB RAM, 4 GB Internal Storage (1 GB user addressable)
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HTC Sensation tech spec page
I remember when T-Mobile's version of the HD2 came out and it had 768 Mb of RAM vs the 512 in the European HD2s and there was a way to unlock the remainder of the RAM with a hack for the Euro models.
I'm sure given HTCs track record that they've used the same hardware (makes sense) to cut down on costs so it's just a matter of a hack from the community to unlock the remaining 3Gb of RAM.
What say ye?
Cyph
I guess you mean ROM and not RAM...and I've read that it is not possible...
Sure just buy a couple of DDR3 sticks and jam 'em in the microSD slot.
bcpk said:
Sure just buy a couple of DDR3 sticks and jam 'em in the microSD slot.
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U need microSDIMM module for that
.regards | xda-premium
ⓢⓔⓝⓢⓐⓣⓘⓞⓝ ツ
nirvana2506 said:
I guess you mean ROM and not RAM...and I've read that it is not possible...
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No, said RAM, meant RAM....
You can do the research, I was going by memory but it actually had 1Gb of RAM vs the 448 in standard HD2s. The Euro HD2s had an unlock that at least gave them 576 Mb, I'm guessing the same will be true here.
Cyph
Madcypher said:
No, said RAM, meant RAM....
You can do the research, I was going by memory but it actually had 1Gb of RAM vs the 448 in standard HD2s. The Euro HD2s had an unlock that at least gave them 576 Mb, I'm guessing the same will be true here.
Cyph
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As you said in your first post, the Sensation is listed with 768 MB RAM, 4 GB Internal Storage (1 GB user addressable). Some of the 768 is then used for Android and Sense, with the remainder being open to run other applications. The 4 GB with 1 GB user addressable is NOT RAM. RAM is volatile (non-permanent) memory that is VERY fast and used to store the data for a currently running process. The user addressable space is non-volatile and is used for permanent storage of applications, contacts, photos, etc. It is not possible to use this as RAM as it is flash memory instead of using capacitors like the RAM found in cell phones (which provides the speed needed).
Some of the remaining 3 GB might be open in the future after the bootloader is unlocked and custom ROMs are flashed as they would be less memory intrusive than Sense. This might also free up some extra RAM from system use, but there is no possible way to increase it beyond 768 - whatever vanilla android requires to run.

Interesting bug....involving the RAM

I didn't notice this in my first 16GB Tab, but on the 32GB tab, if I open the Task Manager through the minibar, it shows 775 MB total ram I know we are supposed to have 1GB ram, so I figure the 225MB missing is due to god knows what, that's not an issue.
If you go to Settings, Applications, Running Applications, it shows you have only 512 MB ram......the real question is, which one is it?
I also noticed that in the 16gb, but ignored it since the usage of ram in the ram manager exceeds 512mb. What's bothering me is why do the usage of ram differ between the ram manager and the one in running applications.
This was the first thing I noticed when I turned on my 7.0 plus for the first time when I got it on Christmas day. I just disregarded it but I am happy I am not the only one who is curious as to why it is saying 775 MB of ram.
If you take a look at /proc/meminfo you can see the kernel only recognizes 775 MB of memory. Guess that explains why it felt like apps were closing more frequently than on my 1 GB phone.
Question is, why are we getting less than memory than was advertised?
On mine:
Code:
# cat /proc/meminfo
MemTotal: 794900 kB
We are getting all the memory "adverstised", but you have to remember that things like the kernel itself and certain other things take memory before hand. The same thing happens on android phones.
Well wouldn't that still show it as being "used" so to speak out of the total 1GB or 1024 MB? Or does the kernal just allocate itself and then let everything else take over from there?
Zadeis said:
Well wouldn't that still show it as being "used" so to speak out of the total 1GB or 1024 MB? Or does the kernal just allocate itself and then let everything else take over from there?
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I honestly don't remember. I wouldn't be concerned, however, about the lower number. It's perfectly normal on the few android devices I have.
garyd9 said:
I honestly don't remember. I wouldn't be concerned, however, about the lower number. It's perfectly normal on the few android devices I have.
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could it be that some of the ram preserved for the GPU?
dewadewi said:
could it be that some of the ram preserved for the GPU?
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Ah... Never thought of that, but at the same time (IMHO) I think it's unlikely it would use THAT much.
Though I guess if other android devices do it according to garyd it's nothing we should worry about.
dewadewi said:
could it be that some of the ram preserved for the GPU?
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I believe it's RAM reserved for GPU and a few other things, like the Samsung MFC and camera interface.
On Captivate, some of the "speedmod" kernels changed the reserved memory sizes to free up user RAM - but often reducing the reserved memory can break stuff. (For example, trying to port those changes to Infuse caused the camera to stop working, along with video decoding acceleration.)
Zadeis said:
Well wouldn't that still show it as being "used" so to speak out of the total 1GB or 1024 MB? Or does the kernal just allocate itself and then let everything else take over from there?
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Keep in mind this is the Linux kernel plus android.
In this case the system shows how much memory is available after the Linux kernel and android overlay are loaded. the galaxy 7 plus has 1GB of ram.
Now if this was straight Linux without android you would see the full amount of ram listed.

[Q] How much RAM has Xperia miro?

On GSMarena (and everywhere on internet) I saw that Xperia Miro has 512 MB of RAM, but every app (like Watchdog, Go Launcher) that I used shows 401 MB of RAM. I have STOCK Android, no root. Is 111MB of RAM used by OS or it's something else?
Croatoan® said:
On GSMarena (and everywhere on internet) I saw that Xperia Miro has 512 MB of RAM, but every app (like Watchdog, Go Launcher) that I used shows 401 MB of RAM. I have STOCK Android, no root. Is 111MB of RAM used by OS or it's something else?
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The memory figure for anything (RAM, HDD, SSD and what not), is only an approximation. During production of these memory devices, the actual value is almost always less than the figure given by the OEM. Having said that, the OS may have certain uses of the RAM but are not displayed on the task manager.
The carrier may limit the ram, I know the HTC dream was limited to 384mb by tmobile
Sent from my GT-P5110 using xda app-developers app
jay_r95 said:
The memory figure for anything (RAM, HDD, SSD and what not), is only an approximation. During production of these memory devices, the actual value is almost always less than the figure given by the OEM. Having said that, the OS may have certain uses of the RAM but are not displayed on the task manager.
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Approximation of by 10% is very lousy approximation. On PC if you have 3GB of RAM you have ~3GB of RAM, not 2.7GB of RAM but memory figure for HDD and SSD are shown in TB but they are really in TiB (TB=1024 GB and TiB=1000 GB, ...). Does on your phone, your RAM memory figure is smaller in task manager because of OS?

Amount of user available ram on the 2gb version

Hi guys, as the titles says, how much ram is user available on the 2gb version?
By user available i mean adding the used+free ram.
I am asking this because my nexus 10 is supposed to have 2gb of ram, but only 1.1gb is user available, the remainder is taken up by the OS.
12pickupsticks said:
Hi guys, as the titles says, how much ram is user available on the 2gb version?
By user available i mean adding the used+free ram.
I am asking this because my nexus 10 is supposed to have 2gb of ram, but only 1.1gb is user available, the remainder is taken up by the OS.
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1850 is maximum . if you freeze a lot of bloatware after reboot you have estimated 1gb ram free left.
After a lot of use without a reboot free memory drops to 650.
Memory is not a problem since it is also ddr4.
Also in android less memory left is sometimes better.

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