Develop Bugs

Benefit from 128 MB upgrade - Speed?

I am thinking to tweak my Universal to 128 MB, but what exactly is the benefit?
I think the speed will go up because the os can put files in the ram but it is really noticeable?
Thanks
Fritte

Apps like Opera and Navigon will greatly profit from more RAM as they eat our measly 30 MB free RAM (best case) alive. You might see more speed on previously slow tasks like opening the Windows folder if the ROMs cache settings has been tweaked to suit the available RAM. But other than that programs just give you a message once you run out of memory and as there is no page file no slowdown occurs.

creating the "personal data" partition in sdcard instead of ram

Is it possible? i beieve the personal data partition which is 127 Mb takes place in the physical ram and it causes that we have only 300 and something Mb of ram for users.. since it s mostly taken by android apps users have about 120-150 mb of ram.. even galaxy tab with froyo has 444Mb.. so i thoght that 127 Mb part could maybe be created in sd card instead of ram.. it would be slower of course but with ext4 convertion this slowness could be ignored with the huge amount of free ram in my guess..
so is there a way to do that? or is there any unlogical part? because i really want to know why i cant use my whole ram for user (after switching to touchwiz 4and filling the screens with widgets the phone got really slower with freezes some times.. so it made me think about that)

Sounds like an awesome idea if someone knows how to pull it off

_delice_doluca_ said:
Is it possible? i beieve the personal data partition which is 127 Mb takes place in the physical ram and it causes that we have only 300 and something Mb of ram for users.. since it s mostly taken by android apps users have about 120-150 mb of ram.. even galaxy tab with froyo has 444Mb.. so i thoght that 127 Mb part could maybe be created in sd card instead of ram.. it would be slower of course but with ext4 convertion this slowness could be ignored with the huge amount of free ram in my guess..
so is there a way to do that? or is there any unlogical part? because i really want to know why i cant use my whole ram for user (after switching to touchwiz 4and filling the screens with widgets the phone got really slower with freezes some times.. so it made me think about that)
Click to expand...
Click to collapse
There is no personal data partition in RAM.
What you see in missing RAM is what is reserved for the kernel. He needs RAM to manage the system. And some RAM is reserved for special purpose (by device drivers), like video recording etc. That is why you see only 330 MB as maximum free RAM.

it might not be a perfect idea because the sd card partitition is so slower than RAM .. so moving dbdata (personel data) to there would slow it down ..
but i have just looked at a samsung galaxy tab again and realised it has 489 Mb of user avaiable memory out of 512 MB (with the turkcell turkish rom).. so it made me wonder what that 127 Mb part which exists in galaxy s but does not in galaxy tab is.. because i have read that personal data makes the device make/recieve calls and mesages.. i dont think so because galaxy tab also can do that without sacrofising 160-170 Mb of memory..

thanks for the asnwer.. so what exactly is inside of this missing RAM part? as far as i know to record video it needs the cache memory.. its something like 30 Mb.. thats ok.. and samsung galaxy tab is also missing nearly that amount.. but this 160 Mb is too much for only a kernel i guess? kernels are like 6 mb..
and why galaxy tab does not need to sacrofise such amount of memory? because they share the same ram, CPU and GPU.. so pysically they are same but why are their structures different..

I believe the Tab has actually more physical memory available than the SGS. If I remember correctly it actually has more than 512mb of ram and so the available ram is higher than in the SGS. Its possible they didn't advertise it because it would simply make it look like they made something wrong with the SGS architecture or advertisement.

i never thought it like that.. maybe..
but in every source i can find it says both have 512 Mb of memory.. so if samsung is not lying (i guess if they did someoe would find it out and spread the news) galaxy s has a software disadvantage.. besides we all know some kernels are expanding the memory from a few Mbs to 10Mb.. maybe there is a way to exapnd it even more without harming the working of the phone..
or maybe there is a way to make an entire new software and partitition structure (which reminds me of cyanogen mod, how much memory it gives to the user?) ..

i found this ;
"the samsung rom uses a ram disk for the os. that's not necessary. putting the OS on "disk" will free up a lot of ram. "
so i believe this software related situaton could be fixed (at least some of the ram could be saved) ?

I think there's a reason samsung didn't put the OS on the "disk".
Ram is lots faster than the internal SD card, so I think it would only slow the device down.
My little brother has a HTC Sensation, which has ~750MB of ram, but only 5xx is usable.
So i think it wouldn't be possible to have that much free ram...

i have checked.. in HTCs web page it says HTC Sensation has 768Mb of ram .. and samsung says both galaxy s and galaxy tab have 512 Mb of ram..
i assume everyone is saying the amount of the ram including the shared parts..
and i assume they all create their roms and kernels based on google sources..
so what is the reason of the difference between the ram amounts of galaxy s and galaxy tab? kernel needings can not be so much different.. they have lots of things in common...

i came back to stock rom (odexed) with stock UI and filled the screen with as much as widgets i could... then i tried everything to get it frozen but i couldnt even slow it down...
for the first time i felt like some hardware in my galaxy s was not enough after i installed touchwiz 4 with other sgsII apps (like e-mail, weather widget etc..) .. and i could not believe a UI could cause lagging (even freezing) ..
then i realised that galaxy tab had much more available ram.. i am still kind of obssessed about this and really wonder if this is possible..

http://forum.xda-developers.com/showpost.php?p=8587641&postcount=75
Like I said before, the Tab has actually 640mb of physical ram, more than the 512mb on the SGS. I'm guessing there really is nothing more we can do right now. Read up on the link I posted. If you want you can also read the whole thread that post comes from. There is lots of Dev talk on the subject.

i read all of them.. and it encouraged me to write and e-mail to samsung.. every source i can find says both deviced have 512 mb of ram.. (please nobady say samsung does not have to tell how much of the ram will be available for users, its like announcing an 1ghz cpu with a software which only forces it to work at 800Mhz) ..

[TUT] - Explanation about the RAM on Defy with JB - How to improve it

(Moderator, i posted this here because this it's a solution about the lack of RAM on Defy running CM10)
Hello people!
We are all excited about the Defy with CM10 Jelly Bean
But there is one thing that many users are complaining like a grumpy old man
It's about using too much RAM in Android 4.1.1 on Defy
Well, first I want to say one thing:
WAKE UP PEOPLE! IT'S ANDROID OS, NOT WINDOWS! :good:
And now comes the old explanation about RAM on Android:
- The Android OS is based on Linux, as everyone knows. The system features a smart task manager that handles all apps minimized to the re-start of apps more faster.
When the system needs more RAM to run any app, it kills unused apps to free up more RAM. And it will be that way forever, because that's how it works with the linux memory management.:angel:
End of this beautiful love story.
[Q] - So my friend Salo-S, why my Defy uses so much RAM in JB?
- I just finished explaining right now. But however, I have not seen any lack of free RAM on my Defy+, is always at 185 ~ 230 free (open with some apps, like Google Now or WALKMAN player of Xperia S).
[Q] - And then? what you have to do with that?
Simple. Check what apps are consuming as much memory as you describe.
Probably you installed an app that consumes a lot of RAM.
Solution: Full-Wipe IT. Reinstall the CM10 and now pay attention to their apps.
[Q] - Oh Salo-S, my phone keeps in low memory like 100 ~ 85 free.
Ok, then do yourself a LITE version of JB!:cyclops:
How? I explain.
My wife has a XPERIA X8 which has only 185 RAM running good the CM9.
Witchcraft? No, it's just removing unnecessary content as LiveWallpapers, Dev Apps, Google Apps and some many other apps that do not affect the functioning of the system.( Something like a LITE version of ICS )
185MB of RAM the phone has, ICS runs well with only 40 ~ 50 MB free.
I do not think this is useful in Defy with JB, but try!
This is the solution if your Defy loves sushi of RAM memory.
The Android system has a great management of RAM, I think all this unnecessary.
It is the explanation and tips for users with RAM problems, I think this will help ..
Right now friends, we can stop asking about the SWAP on Defy (we have locked bootloader) and stop talking about low RAM. This all explained now.
Thanks to Quarx and Epsylon3 to make JB possible and good on our Defy's!

Thanks ,
nice explanation !!
but still this thread is more worthy of general section

Shubhamqweasd said:
Thanks ,
nice explanation !!
but still this thread is more worthy of general section
Click to expand...
Click to collapse
thought so....

It might sound rude to fans of Task-Killer apps and V6 Supercharger (it works, but not for everyone),
but Salo-S is right. Even with task killing, it only temporarily frees up the RAM, but if you have a lot
of apps installed, the RAM will fill up again in a few minutes.
So the best way to free up ram on a low-RAM device like Defy and Defy+, is to limit the number of
memory-hungry apps in your phone.

droid_<3er said:
It might sound rude to fans of Task-Killer apps and V6 Supercharger (it works, but not for everyone),
but Salo-S is right. Even with task killing, it only temporarily frees up the RAM, but if you have a lot
of apps installed, the RAM will fill up again in a few minutes.
So the best way to free up ram on a low-RAM device like Defy and Defy+, is to limit the number of
memory-hungry apps in your phone.
Click to expand...
Click to collapse
you can install as many apps as you want, you just need to avoid that they start automatically. i use this app and it really helps to control when which app starts.
hope this will help you guys

@salo-s
basically you were right. but have you ever read some posts in quarx' cm10 thread?? it is a fact that our defy runs very slow with cm10 and 50-70 MB free RAM (or less). This happens when you flash full gapps and some favorite apps. if you flash minimal gapps (and also some favorite apps) free RAM is about 120-150 MB and the rom is very smooth and responsible.
some useres think it's a cache problem. more free ram = more cache = smoother system.

Salo-S said:
(Moderator, i posted this here because this it's a solution about the lack of RAM on Defy running CM10)
Click to expand...
Click to collapse
That doesn't matter.
It's a guide, you're not developing anything, therefore it doesn't go in the Dev section.

Salo-S said:
(Moderator, i posted this here because this it's a solution about the lack of RAM on Defy running CM10)
Hello people!
We are all excited about the Defy with CM10 Jelly Bean
But there is one thing that many users are complaining like a grumpy old man
It's about using too much RAM in Android 4.1.1 on Defy
Well, first I want to say one thing:
WAKE UP PEOPLE! IT'S ANDROID OS, NOT WINDOWS! :good:
And now comes the old explanation about RAM on Android:
- The Android OS is based on Linux, as everyone knows. The system features a smart task manager that handles all apps minimized to the re-start of apps more faster.
When the system needs more RAM to run any app, it kills unused apps to free up more RAM. And it will be that way forever, because that's how it works with the linux memory management.:angel:
End of this beautiful love story.
[Q] - So my friend Salo-S, why my Defy uses so much RAM in JB?
- I just finished explaining right now. But however, I have not seen any lack of free RAM on my Defy+, is always at 185 ~ 230 free (open with some apps, like Google Now or WALKMAN player of Xperia S).
[Q] - And then? what you have to do with that?
Simple. Check what apps are consuming as much memory as you describe.
Probably you installed an app that consumes a lot of RAM.
Solution: Full-Wipe IT. Reinstall the CM10 and now pay attention to their apps.
[Q] - Oh Salo-S, my phone keeps in low memory like 100 ~ 85 free.
Ok, then do yourself a LITE version of JB!:cyclops:
How? I explain.
My wife has a XPERIA X8 which has only 185 RAM running good the CM9.
Witchcraft? No, it's just removing unnecessary content as LiveWallpapers, Dev Apps, Google Apps and some many other apps that do not affect the functioning of the system.( Something like a LITE version of ICS )
185MB of RAM the phone has, ICS runs well with only 40 ~ 50 MB free.
I do not think this is useful in Defy with JB, but try!
This is the solution if your Defy loves sushi of RAM memory.
The Android system has a great management of RAM, I think all this unnecessary.
It is the explanation and tips for users with RAM problems, I think this will help ..
Right now friends, we can stop asking about the SWAP on Defy (we have locked bootloader) and stop talking about low RAM. This all explained now.
Thanks to Quarx and Epsylon3 to make JB possible and good on our Defy's!
Click to expand...
Click to collapse
Very good explanation on the way Android Memory Management works.
To extend on it, people you can use AutoKiller Memory Optimizer app from Play Store. Using this App you can increase the Minimum amount of RAM to be free. Basically, this app is not a task killer but is just an extension of the natural Memory Management system in Android as it helps you customize the Amount of minimum RAM to be free and change the value of RAM to be consumed by the Non-Active Apps etc.
I have been using it for months now (on Stock Froyo, CM7, CM9) and it has been working it's magic ever since.

[Q] [Q} Acro S low RAM problem

Hi there,
I have a question to Xperia Acro S users: How much total RAM can you see and how much free RAM on your phones?
I have my acro s since few days and I'm a little bit disappointed. In normal use I find it a bit laggy and slow. I tried it on 6.1.A.2.45, 6.1.A.2.55 and XTXperience_9. All the roms the same problem. I installed "Android System Info" and it showed total RAM 634Mb and free RAM 196Mb.
Both my previous xperia p and my tablet ainol novo 7 flame are showing total RAM 809 Mb and more free RAM. Each of devices has 1GB RAM according to official specs.
Why there is such a difference? Anybody knows? Is there any solution?
I installed additionally "Quick system info PRO" but the same results.

Answered many times before and saying this again
From the Total 1GB RAM, around 200 MB is being used the by Adreno GPU. Some are kept reserved for the OS and rest amount of RAM we get for the apps and general use.
I am using Firmware 0.50 and honestly i don't feel that much of lag actually. If you are on Stock ROM then try this two apps from Google Play.
RAM Manager Pro and Pimp My ROM. These are really great tweaking software.
And it's not about how much free RAM you have, it's about whether the RAM optimization in your device is good or not.I have only 130 MB free RAM but my device runs quite good.

People are far too ram obsessed. U could have 80mb free and you'd never notice unless you looked. My advice. Just stop looking and use your phone
Sent from my Android 4.2.1 Xperia S

Try disable some apps...Just go to Settings > Apps > All
Disable the apps that you think you dont use...
List of apps that ive disabled :
- Ant Radio Service
- Email
- Event Stream Engine
- Exchange Service
- FBiX CalendarSync
- FBiX Music Likes
- FM Radio
- Friends Music
- Gmail
- Google Bookmark Sync
- Google Calendar Sync
- Google Contacts Sync
- Google Lyrics Extension
- Google Search
- Google+
- Maps
- NeoReader
- News & Weather
- Picasa Extension
- Street View
- Talk
- Talkback
- Timescape
- TV Launcher
- Twitter
- Twitter Extension
- Voice Search
- Weather Widgets
- Youtube Karaoke Extension
Click to expand...
Click to collapse
Depends on the apps that you use/dont use...Which apps that is out of your concern, just disable it but dont disable system related apps

auni said:
Answered many times before and saying this again
From the Total 1GB RAM, around 200 MB is being used the by Adreno GPU. Some are kept reserved for the OS and rest amount of RAM we get for the apps and general use.
I am using Firmware 0.50 and honestly i don't feel that much of lag actually. If you are on Stock ROM then try this two apps from Google Play.
RAM Manager Pro and Pimp My ROM. These are really great tweaking software.
And it's not about how much free RAM you have, it's about whether the RAM optimization in your device is good or not.I have only 130 MB free RAM but my device runs quite good.
Click to expand...
Click to collapse
Thank you for your reply, specially because you've written about it before. I've searched xda for this topic, but didn't find answer.
I know some of RAM is used by GPU, and some reserved for system, but I wrote the question because my xperia P and ainol (both 1GB RAM) are showing 809 total and over 400 free RAM. I wouldn't care about it, I wouldn't even have checked it if I wouldn't feel my acro s very laggy comparing to my mentioned devices. Both are worse in specs than acro s.
I'm running 0.55 stock ROM right now, I'll try the apps you suggested. I bought my phone a week ago, and hoped to be more satisfied than with xperia p (no micro sd, no watherproof, smaller screen, and so on). Now I think xperia p works better for a daily use ;/

wajahebat said:
Try disable some apps...Just go to Settings > Apps > All
Disable the apps that you think you dont use...
List of apps that ive disabled :
Depends on the apps that you use/dont use...Which apps that is out of your concern, just disable it but dont disable system related apps
Click to expand...
Click to collapse
Thanks for the list. It's a good idea to disable some of not used apps.
I still can send back my phone to shop (according to polish law when I buy via internet I can return it within 10 days), but I want to convince myself, I don't have to

rintelen said:
Thank you for your reply, specially because you've written about it before. I've searched xda for this topic, but didn't find answer.
I know some of RAM is used by GPU, and some reserved for system, but I wrote the question because my xperia P and ainol (both 1GB RAM) are showing 809 total and over 400 free RAM. I wouldn't care about it, I wouldn't even have checked it if I wouldn't feel my acro s very laggy comparing to my mentioned devices. Both are worse in specs than acro s.
I'm running 0.55 stock ROM right now, I'll try the apps you suggested. I bought my phone a week ago, and hoped to be more satisfied than with xperia p (no micro sd, no watherproof, smaller screen, and so on). Now I think xperia p works better for a daily use ;/
Click to expand...
Click to collapse
No problem. Sometimes some apps like Facebook or Google play consume high amount of memory like 80-90 MB while opened for long time. So try force close these once u have done using those apps. If the RAM properly distributed then even if you have 70-80 MB free memory in total it shouldn't be lag at all.
And you can find a detail info about Pimp My ROM here-
http://forum.xda-developers.com/showthread.php?t=2113295

[Q] Stock RAM management as compared to CM

I was a long time stock user. I feel the stock UI is nice and everything works just great. But the Stock ROM eats up RAM like crazy. I just don't get it. Currently I'm using OpenSEMC. I'm aware AOSP roms are debloated and lighter than stock ROMs but even debloating a stock ROM, multitasking is simply below average on stock ROM. I usually remove all Sony apps(Album, movies, DLNA, Timescape, Small apps, widgets, etc.) along with the usual(Facebook, Twitter, etc.). So I have basically the same apps installed on my Stock ROM and CM ROM. But RAM is so much better handled in CM.
For example, RAM usage on stock ROMS by apps:
Contacts/Dialer - uses around 45-50MB of RAM
Hangouts - always around 50MB
Whatsapp - around 30MB of RAM
Swiftkey - around 45MB
on OpenSEMC, these same apps use
Contacts/Dialer - uses around 20MB of RAM
Hangouts - always around 35MB
Whatsapp - around 20MB of RAM
Swiftkey - around 35MB
I can switch between 5 apps in CM and none of them will get reloaded, at least untill I open a heavy app like Chrome or Google+. Dialer, Whatsapp and Hangouts(my 3 most used apps) are ALWAYS residing in memory. They open instantly and almost never get killed off.
On stock ROM, swtiching between these 3 apps and still the third one will get killed off very soon. I just don't get it. It's like the ROM is giving priority to apps and services I barely ever use, instead of giving it to apps I frequently use.
They are the same apps; why do they consume more RAM on stock(OK apart from the Contacts app)? Why do they get killed off faster? Does anyone have an explanation?

Stock has better ram management but aosp and cm10 have better ram consumption
Aka
Cm10 settings - 34mb
Stock sony - 53mb
aosp - 47mb
Stock is better for ram heavy but it self used alot ofbram cm10/aosp is better for gaming for cpu intensive, not so good for ram but its eficient ram consumption makes overal for better
Apps being killed is a lack of ram, dont use dodgey or poorly designed apps, also avoid intrusive advertising
Also avoid ram cleaners
You could also fix by changing your oom values to be less agressing for killing apps