Hi, i just wonder why this phone use ram so much high? (mine: usually at 1,7GB). At first time i use this phone it was used about 1.1GB of ram.
I'm trying to compare this phone usage with my previous tablet, samsung galaxy note 10.1 and it just consume about 700MB of 2GB ram it have and at first time i use it consume about only 500MB ram.
For your information, i use almost same app running in my booth device. But..
Why it come so much different? Z2 for sure have 3GB ram (bigger than other) but i think the system at least consume much more ram too than others. Are I'am right? Can u tell me what do you think? And tell us about your idle ram usage too if u can..
denny9unawan said:
Hi, i just wonder why this phone use ram so much high? (mine: usually at 1,7GB). At first time i use this phone it was used about 1.1GB of ram.
I'm trying to compare this phone usage with my previous tablet, samsung galaxy note 10.1 and it just consume about 700MB of 2GB ram it have and at first time i use it consume about only 500MB ram.
For your information, i use almost same app running in my booth device. But..
Why it come so much different? Z2 for sure have 3GB ram (bigger than other) but i think the system at least consume much more ram too than others. Are I'am right? Can u tell me what do you think? And tell us about your idle ram usage too if u can..
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Click to collapse
I think nothing of it
Linux is healthy to use ram unlike other OSs when ever you open an app your phone will free ram if needed, its not to hard seeing as how its managed
Your actual free ram is always 15mb but freeable is usualy always %90 of your total ram, ignore how much ram is avaliable
If you want to know more, look up linux ram management
Sent from my D6503 using XDA Premium 4 mobile app
Looking at RAM usage is entirely pointless.
Apps allocated RAM as they like but the operating system makes all kinds of predictions ahead of time to preallocate blocks of RAM to increase speed, eg when an app requests to allocate some memory the OS gets to instantly go "here you go; hehe sucker I already prepared that earlier".
The OS will more or less allocate as much RAM as you throw at it up to realistic limits. Eg once a tiny app has 1gb of ram the OS will take the educated guess that will be more than enough for it and not allocate any more.
If another app opens up and the OS is running low on memory it will rejig how much it has allocated to apps that never actually requested that much memory.
This happens on any modern OS and is why you should never really care how much RAM things are using.
In Windows under process manager if you looked you would find there is about 10 different ways to look at the RAM usage per app. Unless you really know what the numbers are saying they will all means basically zero in the real world.
Woa.. I never know it before.. Thanks for the info..
Mine 1.5gb used
More then enough
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How do I see this?
Skickat från min D6503 via Tapatalk
mine is usually about 1.5 to 1.9GB
keep in mind it caches apps too incase you reuse them, at the top right of the usage screen hit the menu to see the cached apps.
Mine is usually 1.5 to 1.7GB, even I don't run any app...
BTW, I install the app Clean Master ( like CC clean on Windows). And I always do clean Junk file and Boost ram once a day.
Is it good to use this app everyday?
vdanh said:
Mine is usually 1.5 to 1.7GB, even I don't run any app...
BTW, I install the app Clean Master ( like CC clean on Windows). And I always do clean Junk file and Boost ram once a day.
Is it good to use this app everyday?
Click to expand...
Click to collapse
If it's another generic 'ram booster', it's next to useless, but it won't be dangerous to use unless the app is programmed poorly. As others have pointed out, if there's no problem with the system (e.g. memory leaks), the RAM it allocates is used for caching apps so they may load quicker. Simply put, this behaviour is intended.
Cleaning junk files will probably have next to no effect on perceived performance as well untill you've hoarded enough junk files that your internal memory is almost full. But I see where you're coming from; it's very satisfying to see memory freed.
And while I am at it, I'd like to recommend SD Maid for this purpose. It's one of the few apps that actually do something useful. You can delete orphaned folders by apps that are no longer installed, delete junk and duplicate files, bulk clean app caches as well as optimise internal app databases.
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Hello, as we know, Galaxy S1 was advertised with 512MB ram, but in real there was only ~340MB of usable RAM! So i want to ask, how much ram is usable for applications and how much is free after fresh boot? Can someone check this? You can see this informations in task manager.
I think its about 800-850 RAM.
The original SGS had 512mb of ram as advertised. For some reason people assume that their phone behaves different than their computer. The operating system and everything like that needs to use the ram as well.
AS stated though I understand the SGS2 to have approximately 850MB of ram free after running the OS etc.
If I continually hit advanced task killer it will give me about 445MB free. In the standard task manager it says /833MB.
I don't really think this is all too relevant. You will never have anywhere near the maximum amount available just as you won't in a modern PC either and with phone OS's getting more power hungry and complex this is unlikely to change.
If the amount of ram bothers you check the video of the guy doing heavy multitasking on the phone and that will clear your mind.
Sent from my GT-I9100 using XDA App
kickassdave said:
If I continually hit advanced task killer it will give me about 445MB free. In the standard task manager it says /833MB.
I don't really think this is all too relevant. You will never have anywhere near the maximum amount available just as you won't in a modern PC either and with phone OS's getting more power hungry and complex this is unlikely to change.
If the amount of ram bothers you check the video of the guy doing heavy multitasking on the phone and that will clear your mind.
Sent from my GT-I9100 using XDA App
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Thank you for usefull information. I'm just interested in real numbers, because HTC phones have all advertised ram available to system, instead of samsung, which is cheating about this. Yes the OS is using ram... but from 833MB, not from 1gig. How can system use ram which is not visible to system? Android is linux, you can easily see how much ram is available and usable for system... it's 833 not 1gig. I believe that there is 1GB ram chip, but some memory is dedicated to other components. However 833 MB is really enough for mobile phone.
Shanakin said:
The original SGS had 512mb of ram as advertised.
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Click to collapse
It did have 512MB of ram in hardware, but a pretty big part of the 512mb was actually dedicated video memory for 3d and movies. The Galaxy Tab 7" which was advertised with 512MB actually had ~600MB of ram in hardware, with extra ram outside the 512MB being for the dedicated video.
With the SGS2 it seems to be as the original SGS with dedicated video ram being taken out of the 1GB. It's easy enough to check by looking at the kernel config files. (And you can even tweak the numbers a bit to get a bit more free ram, as was done in the SGS)
Hope we're not heading down the old line of trying to run with loads of free RAM... I'm of the philosophy that if you have the RAM available, you should use it, rather than have to load things up from storage due to removing it to make a number bigger on a task manager...
ranwej said:
Thank you for usefull information. I'm just interested in real numbers, because HTC phones have all advertised ram available to system, instead of samsung, which is cheating about this. Yes the OS is using ram... but from 833MB, not from 1gig. How can system use ram which is not visible to system? Android is linux, you can easily see how much ram is available and usable for system... it's 833 not 1gig. I believe that there is 1GB ram chip, but some memory is dedicated to other components. However 833 MB is really enough for mobile phone.
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Click to collapse
Htc does/did this as well. My Legend is advertised with 384mb ram, but only 290 is available to the system.
Sent from my Legend using XDA Premium App
pulser_g2 said:
Hope we're not heading down the old line of trying to run with loads of free RAM... I'm of the philosophy that if you have the RAM available, you should use it, rather than have to load things up from storage due to removing it to make a number bigger on a task manager...
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Your philosophy is absolutely correct. In Windows that might be a good thing, because it starts buffering to the HD when you run out. But Android will just close some background processes automatically to clear ram as needed.
Sent from my Legend using XDA Premium App
pulser_g2 said:
Hope we're not heading down the old line of trying to run with loads of free RAM... I'm of the philosophy that if you have the RAM available, you should use it, rather than have to load things up from storage due to removing it to make a number bigger on a task manager...
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Click to collapse
Unfortunately people these days only know about ram management from that poor excuse of an OS called Windows.... excluding 7.
pulser_g2 said:
Hope we're not heading down the old line of trying to run with loads of free RAM... I'm of the philosophy that if you have the RAM available, you should use it, rather than have to load things up from storage due to removing it to make a number bigger on a task manager...
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Click to collapse
Agreed, as long as there is a big line between FREE RAM and TOTAL RAM. More total RAM is always a very very good thing regardless of how good the ram management is.
This thread is about total RAM available to Linux/Android, so it's good imho.
So, I just played with a friend's SGS 2 and when i looked into his App Manager, it would say he had 500-600 MB of free ram. Now, no matter how much I wipe or how many processes I kill, I cannot go over 450MB from the "1 GB" we are supposed to have.
I thought It was android reserving some RAM for himself but with this comparison it doesn't make sense anymore. Any recommendation on this? Might be because we have webtop running on background and SGS doesn't?
Kenchinito said:
So, I just played with a friend's SGS 2 and when i looked into his App Manager, it would say he had 500-600 MB of free ram. Now, no matter how much I wipe or how many processes I kill, I cannot go over 450MB from the "1 GB" we are supposed to have.
I thought It was android reserving some RAM for himself but with this comparison it doesn't make sense anymore. Any recommendation on this? Might be because we have webtop running on background and SGS doesn't?
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Click to collapse
I usually have between 500 - 600 mb of RAM available... all depends on how many apps & process you have running.
Webtop does not run unless it is being used. As far as the difference in usage, I think Motoblur just uses more resources. I use Bloat Freezer and i can get up to 600MB free like when I reboot but then processes start up and it goes to about 500MB. Then I'll use it for awhile and it will get down to 200 to 300MB but never any less than 200
Kenchinito said:
So, I just played with a friend's SGS 2 and when i looked into his App Manager, it would say he had 500-600 MB of free ram. Now, no matter how much I wipe or how many processes I kill, I cannot go over 450MB from the "1 GB" we are supposed to have.
I thought It was android reserving some RAM for himself but with this comparison it doesn't make sense anymore. Any recommendation on this? Might be because we have webtop running on background and SGS doesn't?
Click to expand...
Click to collapse
I don't have that many applications installed. And even so, the installed applications shouldn't be taking up RAM unless i run them, right?
I just did a restart and checked the RAM and it was just at 471 MB. I might mention that I'm using Go Launcher and the stock launcher is running also, because if I freeze it with Root Uninstaller, the calendar widget won't work.
Any guide on how to optimize RAM usage or what bloat should i freeze/uninstall?
using CM7, have around 400MB free out of 820 or so at any given point in time.
879mb of ram doesn't = 1gig. I would like to have that extra 120mb in free ram. instead of 600, 720 free. When I go into "About Phone" it used to say the current amount out of 879 but now it seems I've lost 100mb of ram. I've wiped/flashed/rebooted countless times to no avail. Even used Aura deblurred and CM7 with almost the same results.
On my phone it shows 471/816. Yes, would have loved to have that extra 208 MB of ram... But still Swiftks, could we have some info on your mods/apps? 600 MB of free ram is a LOT compared to what we have.
I have used ROMs that showed 575-620mb free but usually after rebooting. I'd say most ROMs will run from 400-500 free. But if you could, look on your phone under running apps and add up your used and free ram and post back.
I've heard that Go Launcher is a resource hog. Might want to try it without that just to see if there is any difference.
Kenchinito said:
I don't have that many applications installed. And even so, the installed applications shouldn't be taking up RAM unless i run them, right?
I just did a restart and checked the RAM and it was just at 471 MB. I might mention that I'm using Go Launcher and the stock launcher is running also, because if I freeze it with Root Uninstaller, the calendar widget won't work.
Any guide on how to optimize RAM usage or what bloat should i freeze/uninstall?
Click to expand...
Click to collapse
There's a huge misconception about how much RAM should be free at any given time. Honestly, the less RAM being used is actually better. That means processes are cued up for multitasking and it uses less resources to start them back up when used. Also, if you have any RAM left then that means you don't need any more because the phone will only use what it needs so if you have like 100MB of Ram available then that means you don't need it, but if you were at like 10 to 20MB free then I'd worry. But most people say they have like 200 available so there really is no reason to worry/complain. Plus, it's better for the battery to have the processes stored in RAM because it takes more energy to start an app back up then to keep it idle.
Phoneguy589 said:
I have used ROMs that showed 575-620mb free but usually after rebooting. I'd say most ROMs will run from 400-500 free. But if you could, look on your phone under running apps and add up your used and free ram and post back.
Click to expand...
Click to collapse
Here is a good article that explains much better how android works in regards to processes:
http://geekfor.me/faq/you-shouldnt-be-using-a-task-killer-with-android/
The "Addendum" at the end lays it out pretty bluntly
live4nyy said:
There's a huge misconception about how much RAM should be free at any given time. Honestly, the less RAM being used is actually better. That means processes are cued up for multitasking and it uses less resources to start them back up when used. Also, if you have any RAM left then that means you don't need any more because the phone will only use what it needs so if you have like 100MB of Ram available then that means you don't need it, but if you were at like 10 to 20MB free then I'd worry. But most people say they have like 200 available so there really is no reason to worry/complain. Plus, it's better for the battery to have the processes stored in RAM because it takes more energy to start a app back up then to keep it idle.
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If I add up the mb's of apps running right now it's less than 90mb but its showing 190mb is being used. That is including the media/motorola/stock junk on a fresh install of ninja. I haven't even opened market or added my google account yet.
live4nyy said:
There's a huge misconception about how much RAM should be free at any given time. Honestly, the less RAM being used is actually better. That means processes are cued up for multitasking and it uses less resources to start them back up when used. Also, if you have any RAM left then that means you don't need any more because the phone will only use what it needs so if you have like 100MB of Ram available then that means you don't need it, but if you were at like 10 to 20MB free then I'd worry. But most people say they have like 200 available so there really is no reason to worry/complain. Plus, it's better for the battery to have the processes stored in RAM because it takes more energy to start an app back up then to keep it idle.
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Click to collapse
I understand your point, but it makes me wonder... Devices like SGS 1 for example, only have 512 MB ram. Based on how the Atrix and Galaxy S2 are said to have 1GB but in reality it only has 800ish MB, the SGS 1 will also have 400+.
Now, my atrix goes from boot to a usable state leaving me ONLY 471 MB of free ram, taking up 380+ (rounding numbers of course). Since the SGS 1 also runs on Android 2.3, the same thing should happen right? taking up 380MB out of it's 400+ MB of ram, leaving only 50 (rounding again) MB of RAM? Highly unlikely, if that was the case, only opening up the browser would take up those 50 "free" RAM.
I don't have a SGS with me to corroborate this theory but I'd bet the SGS starts up to a usuable state with 100-150 of free ram, using up only 250-300 MB of ram, why can't we pull that off from our devices?
It's not that I'm not against using the RAM on our devices, but only comparing how much RAM my device is using I can tell whether it's running efficiently or it has a resource Hog somewhere.
Phoneguy589 said:
If I add up the mb's of apps running right now it's less than 90mb but its showing 190mb is being used. That is including the media/motorola/stock junk on a fresh install of ninja. I haven't even opened market or added my google account yet.
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Click to collapse
your phone is like a fat kid with a birthday cake. he's always going to take a few extra slices for himself and not share with anyone.
(system taking RAM and not sharing with any other processes)
I think it has to do with Motoblur using up more resources. It is so integrated into accounts and everything that it can't help but take up a bunch of RAM which is why they probably went with 1GB of RAM to begin with, they probably couldn't pull it off with just 512
Kenchinito said:
I understand your point, but it makes me wonder... Devices like SGS 1 for example, only have 512 MB ram. Based on how the Atrix and Galaxy S2 are said to have 1GB but in reality it only has 800ish MB, the SGS 1 will also have 400+.
Now, my atrix goes from boot to a usable state leaving me ONLY 471 MB of free ram, taking up 380+ (rounding numbers of course). Since the SGS 1 also runs on Android 2.3, the same thing should happen right? taking up 380MB out of it's 400+ MB of ram, leaving only 50 (rounding again) MB of RAM? Highly unlikely, if that was the case, only opening up the browser would take up those 50 "free" RAM.
I don't have a SGS with me to corroborate this theory but I'd bet the SGS starts up to a usuable state with 100-150 of free ram, using up only 250-300 MB of ram, why can't we pull that off from our devices?
It's not that I'm not against using the RAM on our devices, but only comparing how much RAM my device is using I can tell whether it's running efficiently or it has a resource Hog somewhere.
Click to expand...
Click to collapse
So deblur is the way?
I use Bloat Freezer and the paid version of TiBu freezes apps too. I think there is a list of "safe" Blur apps to freeze somewhere. I'll see if I can find it.
Kenchinito said:
So deblur is the way?
Click to expand...
Click to collapse
I found this one:
http://forum.xda-developers.com/showthread.php?t=1182663&highlight=apps+safe+to+freeze+list
But I'm sure there is an even more comprehensive list somewhere...
live4nyy said:
I use Bloat Freezer and the paid version of TiBu freezes apps too. I think there is a list of "safe" Blur apps to freeze somewhere. I'll see if I can find it.
Click to expand...
Click to collapse
great, thanks. Why do you use two freezers?
I don't, I just use Bloat Freezer. I was just pointing out that TiBu does it as well if you happened to have the paid version (which I don't).
Kenchinito said:
great, thanks. Why do you use two freezers?
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Click to collapse
Hey guys, first I want to say I'm new to android so forgive me I got my rezound today and am a bit concerned with the memory usage. I'm showing that the phone has 817 megs of memory (thought this was supposed to be 1 gig?) and i'm showing the usage at 683 and really don't have anything installed yet.
Is this normal? If it's not, how should I proceed to resolve this.
Thanks!
In android, memory is used differently. Unused ram in android is wasted ram. I know this is counter-intuitive but it is true. Having no free ram won't impact the performance because android intelligently keeps things in ram so that they can be opened for faster access. If ram is needed by an application, things are automatically closed to free up ram.
It's normal, I have 704MB in use and 141MB free. Once we have perm-root and can debloat, I expect some more memory to free up.
You can also launch "Task Manager" and see what processes are running.
Keep in mind, Sense uses a LOT of RAM to operate.
Once the phone is debloated, a ROM is flashed that gets rid of most, if not all, of Sense, you can expect anywhere from 300-500 megs of RAM free.
I use fast reboot from the market and I consistantly have 390-415 mbs free.
I'm not asking in terms of memory usage, but do we really only have 817 megs of ram? Might as well call it 756 instead of 1024. Or is there ram being used by the system that doesn't show up there? Again, I know how android caches apps, I just want to see if the actual total ram is correct?
I've got my device for one day already.
This is my first Sony Android phone and ... compared with my previous HTC old phone, Z2 is perfect.
However I find that the ram usage is terrible. There is only 1.1GB free RAM just after the device is booted up.
That means... the phone has used 1.6~7 GB RAM before I open the browser or games.
Quite ridiculous...
Is it normal? or what can I do for more free RAM
I don't think it's a problem but a good thing. Android has a smart/good RAM management. That means apps are kept in RAM until other apps need more. If you don't like you can try in developer option to play with "don't keep activities" and background process limit".
Right, you want your phone to use as much RAM as it can, this is a good thing. Also notice, the "unused" portion of RAM is also used to cache certain processes android believes you use often or will need. All of this is to speed up access to those applications as much as possible.
Take note on this
What is shown as free ram in linux is actualy freeable ram, your actual free ram is about 5mb
Linux has the motto of free ram wasted ram so when you have around 200mb freeable when your total is 3GB then there is a problem
Sent from my D6503 using XDA Premium 4 mobile app
I had Galaxy s2 with 821MB of RAM and i know that every app (not game) was eats about 20-50MB of RAM
I was sure that xperia z2 with 3GB of RAM it's more than enough but the reality is different
I see that any app in my Z2 is eats about 80-120MB! But why?
OK, maybe i know, because of tha resolution difference (in s2 800X480)
Anyone have any additional ideas for the increased RAM eating?
It uses more RAM because it can. In your S2, the OS had to ration what ram the device had between what the OS needed and what each app wanted, plus saved a bit for cached processes so overall everything would feel snappy. With 3GB of RAM, the OS has a lot more room to spread out, so it does.
Think of it like this, if your family lived in a 2 bedroom apartment, then moved into a 4 bedroom house, you wouldn't leave 2 rooms empty. Either people that didn't have a room to themselves would use them, or you would find other uses for them. Android is doing the same thing with the RAM.
You have 3GB, don't worry about how much RAM is being used, ignore it and enjoy your phone
Dont worry about ram at all, when ram is needed the kernel will free some ram up
Usualy you only actualy have 14mb free, your ram in your settings or most apps show freeable ram
Sent from my D6503 using XDA Premium 4 mobile app
I'm looking for a more accurate explanation for this fact
I'm from these users them uninstalling system apps and care to run with minimal battery drainage.
So, not received exact reason for eating the amount of memory unlike in galaxy s2
Envious_Data said:
Dont worry about ram at all, when ram is needed the kernel will free some ram up
Usualy you only actualy have 14mb free, your ram in your settings or most apps show freeable ram
Sent from my D6503 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I was run with galaxy s2 on 400MB of free RAM and maybe 250 when running browser+gps+poweramp
This is not windows xp, its android and its healthy to have ram used rather than being free.