I have a rooted, debloated, supercharged (megamemory) x2. I was having random reboots so I started watching memory usage with system panel. What I'm seeing is that "system" grows from 40mb at boot to 140mb after a day or so. When it gets there, I have a reboot. I'm assuming its a memory leak. I've tried uninstalling stuff, switching default apps, etc. Nothing has worked.
Any suggestions? This is driving me crazy!
Sent from my DROID X2 using XDA App
Something screwy is going on in the DX2 firmware. It appears that out of 512mb ram, 104mb is allocated to the Tegra 2 (on saying this since system apps shows 404mb available. In spite of this, there is at least 100 more mb missing, if you add up the OS, OS task and any app currently running.
The low operational ram appears to be the root cause to problems with the DX2. To folks that say they have no problems- great, but even after reset to stock, I got accumualted lag (tended to start after about an hour), mp3 audio pops (even placing tunes into internal) and random reboots.
I suggest there really is not 512mb of functional ram and the Tegra 2 allocation is being used in the 404mb. This is the only thing that adds up as far as accounting for the ram and the performance. gTablet has 512mb ram, tegra 2 and Froyo and none of these issues.
If Gingerbread is released and somehow also fixes the issues, the DX2 will rock, since everything else about the device is sweet.
My understanding is that the "missing" memory is dedicated to graphics processing, so it's not really missing. If "system" wouldn't grow so big (and it usually doesn't grow at all on my nook color or og droid), the memory would be sufficient with SuperCharger settings.
Sent from my DROID X2 using XDA App
I'm my self have random reboots.as I tried to address the issue by returning the phone for a replacement. to my surprise that didn't fix the problem because I'm on my third.so I will keep this one and make verizon aware of the issue.
Sent from my DROID X2 using XDA Premium App
devarshi said:
My understanding is that the "missing" memory is dedicated to graphics processing, so it's not really missing. If "system" wouldn't grow so big (and it usually doesn't grow at all on my nook color or og droid), the memory would be sufficient with SuperCharger settings.
Sent from my DROID X2 using XDA App
Click to expand...
Click to collapse
I thought so too, but even if we assume 108mb is allocated to the Tegra 2, the total of 404mb still does not result in being accounted for. If you add up the OS, home UI, system tasks, open apps and the free memory, the total never seems to go higher than 260mb (where is the balance- even if just from 404mb?).
Seems 512mb is not what is operational, but 404mb is what is there and the Tegra 2 allocation is included within the 404mb (hence the "missing" ram).
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
Click to expand...
Click to collapse
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.
Click to expand...
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.
Click to expand...
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...
Click to expand...
Click to collapse
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...
Click to expand...
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.
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?
Click to expand...
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.
Click to expand...
Click to collapse
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.
Click to expand...
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.
Click to expand...
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?
Click to expand...
Click to collapse
I have been so busy catching up with all the amazing stuff Da_G has been pumping out (thanks!) that I didn't even take a look at this until now. I am showing that we only have 733MB of avaliable RAM. That is a far cry from 1024MB.
I am seeing 733MB w/ both Android System Info and with the built-in Task Manager.
Does anyone know if we indeed have 1024MB of RAM and... if it is just assigned else where?
Yes we have 1GB every phone has RAM missing because the system is holding it.
I remember one time the OS didn't support that much not sure if that's the case now but the phone has 1GB to my knowledge and.what I've read
sent from AT&T Samsung Galaxy Note Dual Core 1.83 GHz
Just like memory... Do we really have 16gb? Its never what they say... All marketing!
Sent from my SGH-I717M
I have also read that is has 1GB everywhere, but missing 291MB seems like an awful lot.
I beleive my Atrix showed 897MB. I just seems like an awful lot 'mssing' w/ the Note.
big samm said:
Just like memory... Do we really have 16gb? Its never what they say... All marketing!
Sent from my SGH-I717M
Click to expand...
Click to collapse
I am with you on that! Makes me
I noticed the same, it's showing short but using the same app(system tuner pro) on my G2 it showed the correct 512mb.
It's not false marketing; it's fact. There is 1GB of RAM in the phone. I'm pretty sure the rest of the RAM is used by the GPU. My GS2 has the same thing, shows about 800MB of RAM available to apps.
What does it matter? I usually have 3-500MB of free RAM. Have you ever managed to fill the RAM with processes? Do you know anyone who has? Android clears old apps from memory even when there is enough free so I have never even come close to filling my RAM.
Graphics memory
As with any computer your phone has a gpu which needs graphics memory and because the gpu is integrated (SOC) it takes its memory off the top. This can be seen with any computer you have with integrated graphics it will section off some memory for your gpu.
As for the flash memory space many issues can take it down such as the file system, operating system, it just depends but trust me before the phone was turned on and android installed it had 16gb of memory and 1gb of ram
I'm about 100% CPU and GPU can't share ram as they do completely different tasks. They could have just added the cram and the ram to get 1GB though... But otherwise, the missing ram is from system tasks and the OS.
Sent from my SAMSUNG-SGH-I717 using XDA App
teiglin said:
It's not false marketing; it's fact. There is 1GB of RAM in the phone. I'm pretty sure the rest of the RAM is used by the GPU. My GS2 has the same thing, shows about 800MB of RAM available to apps.
What does it matter? I usually have 3-500MB of free RAM. Have you ever managed to fill the RAM with processes? Do you know anyone who has? Android clears old apps from memory even when there is enough free so I have never even come close to filling my RAM.
Click to expand...
Click to collapse
Do we have a reference or any proof of this?
And to the post directly above this, any computer that does not have a dedicated graphics card uses shared system memory, just like our phones. 733MB is just quite a bit away from 1024MB.
they can and do use the same memory because they are the same soc aka system on chip. all this is integrated.
So if you built a PC yourself and loaded it with 2gig RAM and booted into windows it would have 2 gig FREE memory?
MrDSL said:
So if you built a PC yourself and loaded it with 2gig RAM and booted into windows it would have 2 gig FREE memory?
Click to expand...
Click to collapse
I am not talking about FREE. I am talking about the system as a whole. Do we really have 1GB of RAM? Where it is being used I am not so concerned about at this point, but it may help us figure out if we do indeed have 1GB (Where is the remaing 291MB assigned).
The missing 291 is being used by android..to load the launcher Widgets and everything else in the background.
MrDSL said:
The missing 291 is being used by android..to load the launcher Widgets and everything else in the background.
Click to expand...
Click to collapse
i have international version of note.its same way on this one.the missing ram is held by system tasks.as for 16gb storage memory.if you wipe all area on usb storage .u will have 16gb but not a working phone.another thing about free ram.dont use task manager to stop apps.all it does is make the phone lag.leave everything running.
teiglin said:
It's not false marketing; it's fact. There is 1GB of RAM in the phone. I'm pretty sure the rest of the RAM is used by the GPU. My GS2 has the same thing, shows about 800MB of RAM available to apps.
What does it matter? I usually have 3-500MB of free RAM. Have you ever managed to fill the RAM with processes? Do you know anyone who has? Android clears old apps from memory even when there is enough free so I have never even come close to filling my RAM.
Click to expand...
Click to collapse
You have 300-500 MB FREE ram? My note is bone stock and I'm running at 400/700 MB RAM (meaning 300 MB free). This is also when I "Clear memory" too. Something wrong with my apps?
tizzy said:
You have 300-500 MB FREE ram? My note is bone stock and I'm running at 400/700 MB RAM (meaning 300 MB free). This is also when I "Clear memory" too. Something wrong with my apps?
Click to expand...
Click to collapse
I have 700 free. With just 2 home screens 2 Widgets and a few apps and live wallpaper.
Sent from my SAMSUNG-SGH-I717 using XDA
Two dozen open apps on mine right now, and it shows 283 MB used, 302 MB free.
On my AT&T gs2 I consistantly show 830 to 850 MB free. On my note I only see a lil over 700. How can this have less ram than my gs2? I have over 80 app on my gs2 and less than half that on my note!!!
Sent from my SAMSUNG-SGH-I717 using xda premium
Probably xtra things (like snote )loaded on note that wouldn't be on your s2
Sent from a Galaxy far, far away!
I remember there was a method to partition part of the external sd card and use it as extra RAM.
Can anyone explain how to do that with the GS3?
I seriously doubt there is a way to do that. Even if there is, why would you want to!? The SD speed will be horribly slow when compared to the RAM, it'll just not be useful in the slightest.
I don't remember how but you can set up a swap file. It would be better to mount it to internal storage but that is still going to be slower. I screwed around with this quite a bit on my N1 and never was able to get better performance than not using the swap file at all.
This was useful and a major feature in the early device custom rooms G1/Hero etc. There is simply no need for it on the handsets nowadays. It was used due to the limited ram in early Android handsets to cache apps to free up main memory for the running apps. Which up until the N1 the was at Max 128MB of in built ram. You have nowt to worry about with 1/2GB of ram.
Sent from my GT-I9100 using XDA
Hey guys,
I have an HTC One V, which is a pretty low-mem device at 512MB RAM. I've been using a normal 256MB swap partition on my SD card with swappiness set to 100 and default minfree settings. This has already given me fantastic results, now I can switch between 4 running programs without having to reload any of them. Before the swap script 2 was the maximum, and even that wasn't always true. Basically I had no multitasking.
Now, I've been checking my memory usage in detail. It seems that when idle, there is about 80MB of free RAM, and around 80MB of swap space is being used. It seems that even though I have 256MB of swap space available, Android never really goes above using ~80. Is there a setting I can fine tune somewhere that would lead to better use of the swap space? From my limited understanding, it seems that in theory Android could store at least two or three more background apps on the swap partition instead of killing them. Which, of course, would lead to much better multitasking.
I'm also aware that using the full 256 megs might actually hurt performance, but I still want the OS to use more than 80.
Please don't flame me if this question has been asked before, I tried to search, but I only found threads discussing the value of vm.swappiness.
TRY TO USE KERNEL TUNER.
AS WELL AS INCREASE SWAPPINESS TO 128 MB.
BUT OS TAKES ONLY AS MUCH RAM IT WANTS U NO NEED TO WORRY THAT IT IS NOT PROPERLY UTILISED.
Hit thanks.....
caius112 said:
Hey guys,
I have an HTC One V, which is a pretty low-mem device at 512MB RAM. I've been using a normal 256MB swap partition on my SD card with swappiness set to 100 and default minfree settings. This has already given me fantastic results, now I can switch between 4 running programs without having to reload any of them. Before the swap script 2 was the maximum, and even that wasn't always true. Basically I had no multitasking.
Now, I've been checking my memory usage in detail. It seems that when idle, there is about 80MB of free RAM, and around 80MB of swap space is being used. It seems that even though I have 256MB of swap space available, Android never really goes above using ~80. Is there a setting I can fine tune somewhere that would lead to better use of the swap space? From my limited understanding, it seems that in theory Android could store at least two or three more background apps on the swap partition instead of killing them. Which, of course, would lead to much better multitasking.
I'm also aware that using the full 256 megs might actually hurt performance, but I still want the OS to use more than 80.
Please don't flame me if this question has been asked before, I tried to search, but I only found threads discussing the value of vm.swappiness.
Click to expand...
Click to collapse
Disclaimer: This is somewhat speculative.
The vm.swappiness is in principle what you are looking for, talking about Linux swap. Unfortunately, for you right now, the Andorid uses "application level swapping", i.e. the Android ActivityManager (userspace task) kills of app's when the memory gets low. Since Android normally don't utilize swapspace, there's a possibility ActivityManager doesn't looks at the size of the total virtual memory (including backed by swap), but only the physical memory installed. If so, it will continue killing app's at the same memory threshold as before, despite of the increased virtual memory size, hence not utilizing the increased virtual memory particularly well. This sounds as what you are describing.
You'll need to check the source ApplicationManager.java to examine the internals here.