Sorry if this is a noob question, this is my first android phone and do not fully understand android of yet.
Basically going to settings >>> Applications >>> Running services.
At the bottom of that screen you see Other : a mb Available b mb + c mb in 46
I understand one is memory used by essential processes, available and memory which can be freed up but what i don't understand is why it does not add up 768? and only around 520 mb?
Some of you RAM is taken up by the HTC Fast Boot feature. Around 80~100MB is used.
in adb shell type free and it will show around 630MB available, the rest is used for Radio and GPU
andyharney said:
Some of you RAM is taken up by the HTC Fast Boot feature. Around 80~100MB is used.
Click to expand...
Click to collapse
so disabling fastboot is advised?
Why? Do you really need the 768MB of RAM? What are you running? Photoshop? 768MB RAM is enough for a loooong time!
BazookaAce said:
Why? Do you really need the 768MB of RAM? What are you running? Photoshop? 768MB RAM is enough for a loooong time!
Click to expand...
Click to collapse
It's not a question of needing, I was just enlarging my knowledge on the subject.
Gurps777 said:
It's not a question of needing, I was just enlarging my knowledge on the subject.
Click to expand...
Click to collapse
Theoretically, it is possible. Try it out and see what happens and report back. However, it is also possible that the device saves some ram for hardware acceleration/graphics memory like the HD2 did...
Related
Hello,
as in this post, I'm trying to track the amount of reserved RAM in different devices. Could someone tell me with the app "Free Memory" what's the linux-usable amount of RAM?
poochie2 said:
Hello,
as in this post, I'm trying to track the amount of reserved RAM in different devices. Could someone tell me with the app "Free Memory" what's the linux-usable amount of RAM?
Click to expand...
Click to collapse
I couldn't find it in the market, care to provide a link or the author's name?
pub:CocoNuts
Otherwise you can type "free" in the terminal emulator.
Your free memory app returns 372MB
Thanks, I suppose the desire z with the stock rom reports the same amount, if someone can confirm it he already has my thanks
373.2 MB of RAM on my Desire Z with stock ROM (I didn't use Free Memory but Elixir).
Could someone explain to me why it doesn't display 512 MB?
Thanks
It's because part of the RAM is reserved for system use (gpu, radio, camera, ...). Some very similar phoned have the advantage of using less for the same tasks, but 373 is not bad, the nexus is great in that.
Thanks poochie
Just pure curisity: this is different from the way Windows Mobile is managed? I don't remember having ever heard of reserved RAM in WM but I may be wrong...
The few WinMo phones I saw far back in the past don't do this, but to be sure we should ask to someone with one of the newer phones. I would find very interesting to know the RAM stats of Htc's Hd2 with both android and winmo.
Sent from my HTC Vision using XDA App
missparker76 said:
Thanks poochie
Just pure curisity: this is different from the way Windows Mobile is managed? I don't remember having ever heard of reserved RAM in WM but I may be wrong...
Click to expand...
Click to collapse
Don't worry, Android is a lot better than managing its memory than WinMo 6.x. WinMo needs to keep a fair bit of free memory or it really starts to bog down. Android can cope with using a lot more of its RAM.
poochie2 said:
The few WinMo phones I saw far back in the past don't do this, but to be sure we should ask to someone with one of the newer phones. I would find very interesting to know the RAM stats of Htc's Hd2 with both android and winmo.
Click to expand...
Click to collapse
Android no longer boots on my HD2 so I have posted the question on a French forum. Here are the replies I got for total RAM (results given by Elixir):
- SD card with Android MDJ_FroYo_HD_v._4.6_MDJ_S78.0 (WM ROM: HD2 en ROM Artemis v50): 413.3 MB
- NAND : 410.9 MB
Knowing that the HD2 total RAM is 448 MB this means only about 35 to 38 MB is reserved RAM.
steviewevie said:
Don't worry, Android is a lot better than managing its memory than WinMo 6.x. WinMo needs to keep a fair bit of free memory or it really starts to bog down. Android can cope with using a lot more of its RAM.
Click to expand...
Click to collapse
Thanks Stevie. I have also noticed that Android does manage RAM much better than WM so I have no worry. It was just to ensure that I hadn't missed something with the way WM managed its RAM
Now that you guys mention this, I realized that my available memory ( which I believe is ram) barely makes it past 220 when I clear my tasks in my manager . Isn't that extremely low ? .
Sent from my T-Mobile G2 using XDA App
No thats what's expected.. Type free into Terminal emulator to see the nimbers these guys are getting
It is true that Desire HD ram only 623MB..? I've check with Android system info..
you are right!
my info (of quadrant) says i have 638 mb ram in total.
that is the total ram aMount of0 free RAM!!!
Pruikki said:
that is the total ram aMount of0 free RAM!!!
Click to expand...
Click to collapse
i dont think so, the programms says TOTAL amount of ram!
my free amount of ram is about 300-400 MB when with usual config.
Pruikki said:
that is the total ram aMount of0 free RAM!!!
Click to expand...
Click to collapse
Correct. The total amount is 768, but some is used for OS stuff.
Yeah first 130mb or so is reserved for system use. Stops apps from grabbing all the memory and making your phone lag.
Sent from my performance enhanced Desire HD
Not OS stuff, more for low-level hardware. Linux only sees ~624MB RAM. Some claim the rest is taken by Fastboot, but disabling it does not free it up.
I suspect it is probably used for GPU memory, unless there is some limitation on the max memory the OS can handle.
Another option is that it might be some kind of volatile filesystem.
Hmmm.
My desire hd says , gig in ram, used 411 MB and have 752 MB free.
syklitengutt said:
Hmmm.
My desire hd says , gig in ram, used 411 MB and have 752 MB free.
Click to expand...
Click to collapse
Somewhere, somehow, you have misread something.
Pics or it didn't happen!
Ok, here you go, sorry for crappy pics.
http://dl.dropbox.com/u/16646991/P1000015.JPG
http://dl.dropbox.com/u/16646991/P1000014.JPG
http://dl.dropbox.com/u/16646991/P1000013.JPG
http://dl.dropbox.com/u/16646991/P1000012.JPG
Bad pictures I know, but there you can see.
Not rootet, new OTA update as rom.
And I have allot of installed apps.
411 mb it says.
That is not RAM, it is the internal storage (NAND). It has about 1.5GB of usable space.
leppie said:
That is not RAM, it is the internal storage (NAND). It has about 1.5GB of usable space.
Click to expand...
Click to collapse
Ok, thanks, thought it was this it was about.
Sorry for messing up.
According to HTC it says 768 MB. but maybe some are reserved for system APP
DHD has 768MB all RAM memory, 640MB for apps, 128MB is isolated for the ARM7 processor that operation radio (radio = your all wireless connection)
DHD has 2GB nanad flash.
550MB for OS. (after update to 1.72 reduced to ~450MB)
1GB for data.
300MB for cache.
Sorry, OT.
@syklitengutt: How did you get so many icons on your power control widget? Are you on 2.2 or 2.2.1? I am getting only the default 5 icons and I am unable to change that.
seba84_2005 said:
DHD has 768MB all RAM memory, 640MB for apps, 128MB is isolated for the ARM7 processor that operation radio (radio = your all wireless connection)
DHD has 2GB nanad flash.
550MB for OS. (after update to 1.72 reduced to ~450MB)
1GB for data.
300MB for cache.
Click to expand...
Click to collapse
128mb is reserved for the chipset, but the majority of it is used by adreno as vram....
Try advanced power bar, its fully customizable
reply to this. ok
i have 653,561... so 653mb ram in my DHD. that is total memory showed by memory booster lite its freeware and its GOOD app.
so 653? why not showing 768? are there reserved memory for OS ? best i get to free ram was 510 mb free and 150 mb used... answers please
use GDE it uses less ram than sense. i pick GDE when rebooted and it saves about 10 to 20% of ram!!!!! GDE good.
Hi,
obvious question (but didn't find an answer): Accroding to http://www.htc.com/www/smartphones/htc-desire-z/#specs it should have 512MB RAM right? Why the actual amount of memory is significantly lower? Free in terminal shows only 386048000 bytes which less than 370MiB. Why? Free should show actuall memory on which the underlining linux is running, right? So there shouldn't be any other hidden memory.
Thanks.
LAMER_CZ said:
Hi,
obvious question (but didn't find an answer): Accroding to http://www.htc.com/www/smartphones/htc-desire-z/#specs it should have 512MB RAM right? Why the actual amount of memory is significantly lower? Free in terminal shows only 386048000 bytes which less than 370MiB. Why? Free should show actuall memory on which the underlining linux is running, right? So there shouldn't be any other hidden memory.
Thanks.
Click to expand...
Click to collapse
Free memory is how much memory isn't being used by the system, files, apps, etc., that being what is available to write to; total memory is the combination of used and free memory.
Sent from my HTC Vision using XDA App
LAMER_CZ said:
Hi,
obvious question (but didn't find an answer): Accroding to http://www.htc.com/www/smartphones/htc-desire-z/#specs it should have 512MB RAM right? Why the actual amount of memory is significantly lower? Free in terminal shows only 386048000 bytes which less than 370MiB. Why? Free should show actuall memory on which the underlining linux is running, right? So there shouldn't be any other hidden memory.
Thanks.
Click to expand...
Click to collapse
I had the same question too
The answer is that part of the memory is used by the sistem itself.
Yeah, part of the memory is reserved for the radio, and probably some other system stuff too. So when Android boots up it only sees around 370MB or so. This is the same on both the G2 and DZ.
Sent from my Desire Z running CM7.
Other stuff.. and something like "Graphics Card" i think.
Hm, hm ..... so 512MB is just marketing. 1GB phone has effectively almost 3x more memory Desire Z is awesome phone (it has HW keyboard), but the memory is a huge disappointment, what would cost extra 512MB these days? Almost nothing ..... grrrrr
steviewevie said:
Yeah, part of the memory is reserved for the radio, and probably some other system stuff too. So when Android boots up it only sees around 370MB or so. This is the same on both the G2 and DZ.
Sent from my Desire Z running CM7.
Click to expand...
Click to collapse
A 1GB device would show about 874988KB in RAM. Or about 854MB.
Hello,
So I just recently got my Nexus, and I'm really really loving it. I had a question about the RAM. I'm on stock un-rooted and I noticed I had a little less that 700 MB ram. I know that's for system or gpu or whatever so I'm ok with that.
What I'm confused about is, I'm currently using 400 MB of it. If I combine the totals from the "Running Apps" section plus what is in the "Cached" section, it doesn't come close to the total 400MB being used.
So where is the extra Ram being used from? How can I free some of it up?
I've been reading that task managers are a no-no for ICS, so I'm more curious about which apps are killing my ram.
Thanks in advance
ellimistx99 said:
How can I free some of it up?
Click to expand...
Click to collapse
Why would you want to?
killing my ram.
Click to expand...
Click to collapse
Killing it how? Using it to make you phone react faster?
beren28 said:
Why would you want to?
Killing it how? Using it to make you phone react faster?
Click to expand...
Click to collapse
Well sure in theory make the phone run faster. I imagine having more free ram available to be used in the cached application section and not the "running application section" will help make apps load quicker too. My friend had a desire and the amount of ram she had did drastically effect her phone performance.
But also because I'm curious about where is that extra 200 or so MB of ram is being used from?
Linux shares ram within apps/processes in a very complex way where even the experts have difficulty explaining exact tallies on ram levels. This is why different apps report different free ram values like os monitor vs system panel vs stock settings etc. So i wouldnt wprry about how android OS shows your ram value in settings, its not gonna add up and its a tricky question to ask.
RogerPodacter said:
Linux shares ram within apps/processes in a very complex way where even the experts have difficulty explaining exact tallies on ram levels. This is why different apps report different free ram values like os monitor vs system panel vs stock settings etc. So i wouldnt wprry about how android OS shows your ram value in settings, its not gonna add up and its a tricky question to ask.
Click to expand...
Click to collapse
Hmm alright. So basically it's not something I should worry about? It's quite a large discrepancy. I guess I'll worry about it once I have errors that are "low ram" or something to that effect.
Thanks anyway
It's the discussion like there was in the galaxy s forum. The not displayed ram is used by the kernel it self and by the GPU. And besides it's a good thing to have a full ram in Android, because then many apps are pre loaded in the ram and can start faster this way.
Sent from my Galaxy Nexus using XDA
ellimistx99 said:
Hmm alright. So basically it's not something I should worry about? It's quite a large discrepancy. I guess I'll worry about it once I have errors that are "low ram" or something to that effect.
Thanks anyway
Click to expand...
Click to collapse
Its always been like this on my android phones, i wouldnt worry. For example if you kill all current apps, you wont see free ram increase at the exact level of the total of all closed apps. Too much overlap and ram page sharing i think.
Don't worry about it. Some ROMs e. the stock ROM, don't have a seperate RAMDisk.
So, basicly, the ROM dumps some cached processes on to the RAM directly "clogging" it. If you however, have a custom ROM, eg. CynagonMod, the system uses half of the RAM it would use as a stock ROM, because cm uses a RAMDisk, which uses a minimal amount of space, on the device's memory.
But, there's absolutley nothing to worry about
Enjoy the phone and leave the RAM, as it is
Can anyone here tell me how to partition my sd card to create 1 ext4 partition to increase internal memry, 1 simple fat partition for daily use, and most importantly gto create 1 swap partition to increase my RAM and how to use it as RAM in galaxy fit ... Plz provide me a tutorial
Sent from my GT-S5670 using XDA
abhinav2196 said:
Can anyone here tell me how to partition my sd card to create 1 ext4 partition to increase internal memry, 1 simple fat partition for daily use, and most importantly gto create 1 swap partition to increase my RAM and how to use it as RAM in galaxy fit ... Plz provide me a tutorial
Sent from my GT-S5670 using XDA
Click to expand...
Click to collapse
The Galaxy Nexus doesn't have an SDcard. You can't partition it up like that.
Also, think you're in the wrong forum.
Alright, the guides here for rooting, 2nd bootloader, and jb 4.2.2 are great, and I had no problem setting all of that up after reading through those threads.
Why does my KF2 claim to only have 673mb of ram now though? This is according to "About Tablet".
LordRomanov said:
Alright, the guides here for rooting, 2nd bootloader, and jb 4.2.2 are great, and I had no problem setting all of that up after reading through those threads.
Why does my KF2 claim to only have 673mb of ram now though? This is according to "About Tablet".
Click to expand...
Click to collapse
You realize the system has to use part of your available RAM, right? How much extra RAM do you need? The original Kindle Fire is buttery smooth on 4.2.2 with less than 100mb remaining. I think 673Mb is more than enough to whatever you need to do with it.
It IS enough ram, and I do understand the system uses some of it. I wasn't saying "Waaaah, only 673mb". I just never noticed pre-jelly bean it only reporting as that much, instead of 1gb, damn.
LordRomanov said:
It IS enough ram, and I do understand the system uses some of it. I wasn't saying "Waaaah, only 673mb". I just never noticed pre-jelly bean it only reporting as that much, instead of 1gb, damn.
Click to expand...
Click to collapse
I see, I misunderstood you. I always assumed that was the available RAM, not total, but looking at it in RAM manager free suggests otherwise. It only shows 794Mb total with 90Mb or so free.
That's definitely very interesting.
[Edit:] It looks like what's not being reported is the cached memory and I/O buffers.
Yes, that's what I meant, the total ram, not the available ram. I'm sorry that I wasn't clear with this. Anyway, this forum Is super helpful, thanks.
Heap
LordRomanov said:
Yes, that's what I meant, the total ram, not the available ram. I'm sorry that I wasn't clear with this. Anyway, this forum Is super helpful, thanks.
Click to expand...
Click to collapse
By Default Android have Dalvik cache that have heap (Size of Dalvik Virtual Machine) about 256m of RAM.
And we have 1024 - 256 = 768 MB (that will be available for users programs and system).
Sorry for my bad English.