Hi all,
I just noticed that there's 1.2GB of RAM reserved under the RAM section. My RAM Plus is disabled; so, what's this reserved RAM for? Why should a 12GB RAM device need reserved RAM?? Samsung and its antics never cease to surprise.
Well this is nothing new, every device that has ram most likely has some reserved. It's the ram set aside by the system for the system and critical processes that have to run while the device is on. I believe that it also is the separator to keep it isolated so malware can't get into system memory but I don't know any facts to back that part up.
amirage said:
Hi all,
I just noticed that there's 1.2GB of RAM reserved under the RAM section. My RAM Plus is disabled; so, what's this reserved RAM for? Why should a 12GB RAM device need reserved RAM?? Samsung and its antics never cease to surprise.
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Click to collapse
It's not SAMSUNG, it's how Android is, you just didn't observe it probably on other devices via a third-party app, meanwhile, Samsung shows that directly in their settings.
Reserved RAM is a part dedicated to the SYSTEM, for the CORE services that keep your phone running. So, even if you open a mass of other apps, they won't be able to consume that part of RAM that is responsible for keeping your phone alive. And once again, this has nothing to do with Samsung, it's how the Android operating system works.
Related
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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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...
Click to expand...
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.
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 purchased a Simdo D98T from Pandawill. While the phone isnt pretty and the touchscreen is not well calibrated, I was impressed with the antenna quality: best wifi and GPS I have seen in any phone.
The phone reports 1G of RAM, but the lowest I have seen free RAM has been around 639MB. Programs are closed as soon as you put them in foreground and Firefox even closed on me while working, while still reporting around 640MB of free RAM.
Can the manufacturer reportan incorrect amount of RAM and tweak the kernel to use only part of it?
>...
The RAM might have been used by system.. Actually 1GB RAM should be 800MB+ available for users.
hjc4869 said:
The RAM might have been used by system.. Actually 1GB RAM should be 800MB+ available for users.
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Click to collapse
Thats the issue: the kernel closes programs and available RAM never goes under 640MB.
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?
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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.
#PocoF1 is termed as #MasterOfSpeed but giving only 3.4gb of memory for a 6gb phone is unacceptable!Ram management of this phone is simply ordinary.
Please retweet the issue guys
Free ram is wasted RAM in an OS like android, as it becomes almost full, it will automatically clear the oldest apps so you don't need to worry about that. If you're rooted you can use ram management tweaks like changing minfree values.
Ashish M Shet said:
#PocoF1 is termed as #MasterOfSpeed but giving only 3.4gb of memory for a 6gb phone is unacceptable!Ram management of this phone is simply ordinary.
Please retweet the issue guys
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Click to collapse
To run everything quick and smooth. It keeps everything in RAM to access instantly. This happens with most of the phones with 4GB + ram. Don't worry about it
Ashish M Shet said:
#PocoF1 is termed as #MasterOfSpeed but giving only 3.4gb of memory for a 6gb phone is unacceptable!Ram management of this phone is simply ordinary.
Please retweet the issue guys
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Click to collapse
i too was puzzled why , yes free ram is wasted ram theory but i have not installed most of mine own apps yet .surprised nobody bother , what if this phone come with 4 gb ram , it would be maxed out easily
That's not how android ram management works, if you would have 4 GB of ram, the phone would load apps on background up to 2 GB. Free ram is wasted ram, miui ram management is aggressive enough already. You guys need to understand that the phone automatically closes down apps when more ram is needed.
Andreyq123 said:
That's not how android ram management works, if you would have 4 GB of ram, the phone would load apps on background up to 2 GB. Free ram is wasted ram, miui ram management is aggressive enough already. You guys need to understand that the phone automatically closes down apps when more ram is needed.
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good to hear then , i have been manually closing background apps ,guess a habit , back in the day when ram was 1 gb or less, it was precious, haha