Why doesn't the Xoom show 1GB of RAM? - Xoom Q&A, Help & Troubleshooting

When I examine the amount of free and used RAM using process monitor or similar tools I get a total of around 718 MB which is a far cry less than the 1 GB the Xoom has. This other memory use far exceeds what is likewise consumed on my HTC Incredible. Is the Linux core and Android layer above it consuming that much? For having twice the RAM as the Incredible I get just over 100 MB more to use on the Xoom Wifi which doesn't have all of Verizon's bloatware.

Wow you're lucky! My Xoom sits on around 350Mb free most of the time after a Advanced Task Manager memory free up....

cheetah2k said:
Wow you're lucky! My Xoom sits on around 350Mb free most of the time after a Advanced Task Manager memory free up....
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Read carefully, I'm not that lucky, the 718 MB is free and used RAM. It's the other 282 MB that I'm looking for. I realize the the kernel and ROM require some RAM but that much seems a bit excessive.

davidsos said:
Read carefully, I'm not that lucky, the 718 MB is free and used RAM. It's the other 282 MB that I'm looking for. I realize the the kernel and ROM require some RAM but that much seems a bit excessive.
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I've been wondering this as well..

The GPU has system RAM mapped to it. There's your "missing" memory.

About Xoom's RAM:
1. Total=1Gb.
2. VM heap size (for dalvik virtual machine)=256 mb.
3. System cache=~200mb.
4. So you have ~400 mb ram available!

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.

Amount of RAM

Everything I have seen on the internet (including HTC's own specs page) shows the EVO SHift having 512 MB of RAM. However, it seems as if my system only has 368 MB (as detected by V6 Supercharger and a couple hardware info apps I downloaded from the market). Does anybody know why this would be the case? My phone is newer (just got it a little over a month ago). Could HTC have lessened the amount of RAM in the new Shifts?
Also, I am running MikShifted-G v1.6 if that makes any difference.
Mine says I have 367,haha, i believe it might only show total available after all the system android stuff... I am probally wrong because I have AOSP which is so much smaller and less bloated that your sense and i have less.. Haha.. But idk... Just speculation
Sent from my Shifty Speedy using the XDA Premium App
#
mine shows,
internal 452/321 free
rom 410/91.9 free
This might help explain things better
]http://forum.xda-developers.com/showthread.php?t=904023[/URL]
Sent for my rooted Thrive
Thanks for the link, but I'm just talking about total RAM, not amount free. Everything indicates I have 368 MB of RAM (not internal storage or ROM or anything, but actual RAM). The Evo Shift supposedly has 512 MB, but I know the HTC Merge has 368 MB, so I was wondering if they lowered the RAM on the newer Shifts.
To check the RAM, download the app Android System Info. It is not Internal Memory, but RAM. Mine says Max 368 MB.
My mistake
trsix said:
Has anyone added more ram? Ive seen 1 gig sticks for$38. I might have to try if noone else has. Curious if it might speed the shift up.?
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They're talking about internal memory on the phone. Are you talking about an sdcard?
Its possible the gpu has an amount dedicated to it that will not be shown. Sort of like checking the ram on a laptop will show less than the stated specs

[Q] How much RAM available to the user?

Hello, I'm maintaining a thread with values of reserved RAM for many devices. Could someone tell me how many MB of total RAM is reported in the system? Just type free in terminal emulator or use one of the many utilities. I'm looking for total RAM, not just the available one. Thanks
Sent from my Sensation using Tapatalk
total usable RAM: 512 MB
system regonizeble: 345 MB aprox.
current free usable RAM: depends on your process, usually after reboot and all clear is about 100 - 200 MB aprox.
Thanks, I really hoped around 400 even the N1 had a bit more..
Sent from my Sensation using Tapatalk
Thats because part of the 512mb is used for the gpu. So if 345 is used by system then 167mb is used for the gpu. Thus it looks like its little. But trust me it boosts your graphics intensive stuff.
poochie2 said:
Thanks, I really hoped around 400 even the N1 had a bit more..
Sent from my Sensation using Tapatalk
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you must first understand ANDROID's memory management
unused memory is wasted memory

[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?

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