So, i've installed the 452 CH firmware with prerooted img yesterday.
I am experiencing quite "high" ram usage, with almost all applications closed via the system (not with a task killer) i have "only" 200mo ram available.
I used to have around 400 with GB.
Is it the same for everybody or do i have some bad app using all my ram ?
I've heard that ICS was better at handling cpu & ram ressources but i'm still a bit surprise by the difference between ics & gb.
This is NORMAL. Live with it.
I've heard that ICS was better at handling cpu & ram ressources but i'm still a bit surprise by the difference between ics & gb.
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it a Linux/Unix system... that means, the Ram is allways full - but dont care, thats give you more speed to launch some apps... and if you look nearly, mostly every process in Ram is flagt as "inactiv" or as "empty" - so if another application will need more Ram, this emty and inactive processes will be kick out of the Memory.. A full RAM dont means in a unix sys, thats no space for forground applicationd..
its also god for your CPU and Battery usage... because a Application wake up out of RAM need less CPU then boot an Aplication from the Ground... and less CPU means less batteryusage
its a Linux, not a Windows :laugh:
Okay, it's a bit like windows 7 memory management compared to win xp.
Thank you
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My RAM (not internal memory) usage is terrible. Out of 190MB I have 63MB free. Anyone have any ideas how I can improve it, or is this normal??
I am running CyanogenMOD 6.1 with Flykernel 12a (well check my SIG for info).
Any help would be GREATLY appreciated!!
That is normal. In fact, 63MB is quite a lot, usually it'll dip to between 35-40MB.
Why are you bothered by 63MB? After all, unused RAM is wasted RAM.
skymera said:
That is normal. In fact, 63MB is quite a lot, usually it'll dip to between 35-40MB.
Why are you bothered by 63MB? After all, unused RAM is wasted RAM.
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I was under the impression it was like a computer, the more ram available, the faster it was...
Is that a wrong assumption?
RAM is fast(er) than flash memory (Which may be used for swap etc).
So loading apps into RAM is beneficial.
While having more RAM is indeed good, having more free generally isn't.
RAM is there to be used. I run CM6.1 and it manages itself fine, so you need not worry
no probs, I'll stop fretting... My Internal storage sits at about 157MB
When I free my RAM I'm getting about ~70Mb maximum but normally 35-45Mb. Remenber that's not Desire HD that's an old phone.
Android's internal memory killer will keep everything OK... There's no need for more RAM to make it faster.
In fact, using taskillers to close apps in the background actually may slow the phone, as the apps have to "reload" fully again, rather than residing in RAM. If that space is needed, it will be freed immediately
So yeah, don't worry about RAM usage whatsoever
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.
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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.
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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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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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Htc does/did this as well. My Legend is advertised with 384mb ram, but only 290 is available to the system.
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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.
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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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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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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.
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
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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
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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
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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.
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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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
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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?
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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?
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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.