Hello everyone,
I need some help with expanding RAM of an old android tablet of mine, more specifically, an Genesis GT-7204, using an SD card.
I rooted the tablet already and granted the app RAM Expander from Roehsoft root permissions, but when i try to use the app i get the following message: "This path is not available for swap!" Image below:
https://imgur.com/4MZ2l
The path i used was mnt/local:
https://imgur.com/6zUH7
Thanks in advance!
The images might be blocked, in any case i will post them here.
Personally have experienced that Virtual RAM ( aka SWAP RAM ) can only get created on a device's internal storage memory ( aka /sdcard ).
Hint: As path manually enter /data .
BTW:
Android since ever comes with virtual RAM ( SWAP RAM) feature. The internal storage memory used herefore is the /cache partition.
Also take note that an Android apps' memory usage by design is limited to some MBs. Even if you increase in Android's system file called build.prop the related amount, it's not sure that this is taken into account: an app's develeoper allows this or not.
And keep in mind that apps that did not fit in the RAM before without swap do not suddenly fit in the RAM.
Don't expect wonders using Roehsoft's RAM Expander. Probably you may not notice any gain in device's performance.
So i can only use my internal storage to add RAM? And not the SD card?
And to do this i have to manually set a path, but i am new at this, but i have to use /data or there is something else?
And in my case it is worth it, because this freaking tablet has only 500 MB of RAM!!!!!
jwoegerbauer said:
Personally have experienced that Virtual RAM ( aka SWAP RAM ) can only get created on a device's internal storage memory ( aka /sdcard ).
Hint: As path manually enter /data .
BTW:
Android since ever comes with virtual RAM ( SWAP RAM) feature. The internal storage memory used herefore is the /cache partition.
Also take note that an Android apps' memory usage by design is limited to some MBs. Even if you increase in Android's system file called build.prop the related amount, it's not sure that this is taken into account: an app's develeoper allows this or not.
And keep in mind that apps that did not fit in the RAM before without swap do not suddenly fit in the RAM.
Don't expect wonders using Roehsoft's RAM Expander. Probably you may not notice any gain in device's performance.
Click to expand...
Click to collapse
So i can only use my internal storage to add RAM? And not the SD card?
And to do this i have to manually set a path, but i am new at this, but i have to use /data or there is something else?
And in my case it is worth it, because this freaking tablet has only 500 MB of RAM!!!!!
pprg1101 said:
So i can only use my internal storage to add RAM? And not the SD card?
And to do this i have to manually set a path, but i am new at this, but i have to use /data or there is something else?
And in my case it is worth it, because this freaking tablet has only 500 MB of RAM!!!!!
Click to expand...
Click to collapse
Honestly I never used Roehesoft's RAM Expander on a real Android device and I'll never will use it: In my eyes it's crap. And, you'll find no serious confirmations in the WEB that it works as claimed.
Android for good reason doesn't come with SWAP feature. Android's Memory Manager frees RAM if necessary.
It's on you to play around with Roehesoft's RAM Expander. Good luck.
My last 2 cents here:
SWAP is a place on the internal storage memory (usually a dedicated partition) that is used to store programs or data that can't fit in memory, like when a program grows more than the available RAM (BTW: In the world of Windows this space is called Swapfile.sys ). SWAP is way slower than RAM, so when you create / enable SWAP the phone gets slower, but at least the program can work.
All the stuff that can't or shouldn't stay in your RAM is written out to SWAP and read back in when needed. This means that the SWAP medium needs to be fast and resilient to lots of writes.
IMHO using an external SD card as SWAP fails on both counts. It is slower at reading/writing than a phone's internal drive, and each of its constituent sectors can only be written to a limited number of times before they wear out and can no longer reliably store data.
SC pl
Related
I understand that this probably will get moved and placed elsewhere under some long post but I'd like to make an individual thread and catch the eyes of people who wouldn't go through those threads to find this.
Any who can we partition the Ram like we did the sd card for apps?
Why?
To set and limit core apps and fix force closings [possibly] and making space for third party apps to run smoothly.
I don't know if it is possible but I do think it is a beautiful idea.
No, there's no way to accomplish anything like that(at least nothing I've ever heard of and I'm a software engineer)
I'm glad that you feel your idea is more important than everyone elses.
No, you can't partition RAM.
i don't know about android OS but ram drives can be created in linux
ram drive is important for ssd users and is created with tmpfs in fstab
There already are memory usage limits set for different types of applications. You can see this in init.rc. But it's not practical to "partition" the memory or limit the memory used by backgroud apps. As you can see the default policy is actually biased towards background services, etc.
samygent said:
i don't know about android OS but ram drives can be created in linux
ram drive is important for ssd users and is created with tmpfs in fstab
Click to expand...
Click to collapse
Yes, they can be created in Android. That is what compcache uses. But from what I read in the OP, that isn't what he is looking for. Maybe I misunderstood him but it sounded like he wanted to limit certain applications from being able to use too much memory. A RAM drive is available to the OS to manage, right? I don't know of any way to stop a specific application from using a RAM drive.
could he be talking about like how the spl partitions data cache and system?
you mount the ram drive like a normal disk and copy whatever files you want on that partition but sadly everything is lost when you reboot
i would like to try it but i don't want to brick my phone by messing up with my fstab
I think i understand he's question. Would it be possible to use g1 internal memory only for hungry tasks and swap partition for the rest ?
I wish it was but sadly it not possible. I hate it too when some silly task take internal memory space with is way faster then sd swap speed
and now that i think about it , ram drive would'nt really help simply because android applications take very low space on drive
samygent said:
you mount the ram drive like a normal disk and copy whatever files you want on that partition but sadly everything is lost when you reboot
i would like to try it but i don't want to brick my phone by messing up with my fstab
Click to expand...
Click to collapse
I was trying to do it based on some stuff I googled. I can't get it to work. It may not have support for it by default. It could be that Compcache loads what it needs to so that it can create a Ramdisk.
Post the steps that you would use and I will try it. It won't brick my phone, I'll just have to wipe and reload which is no big deal.
not gonna mess with fstab for the moment but you can try this
create a dir somewhere, mkdir -p /system/ram
and then
mount -t tmpfs -o size=5M,mode=0744 tmpfs /system/ram
you now have a 5mb ram drive
copy something on it to test
samygent said:
not gonna mess with fstab for the moment but you can try this
create a dir somewhere, mkdir -p /system/ram
and then
mount -t tmpfs -o size=5M,mode=0744 tmpfs /system/ram
you now have a 5mb ram drive
copy something on it to test
Click to expand...
Click to collapse
It might have to wait until I get off Hero but I will try it.
i'm using hero
funny thing is , i created a 100 mb ram drive, copy something on it and umount it. swap is almost full and 35mb free on internal ram
then tried to start hero browser and it started in about less then 2 secs
samygent said:
i'm using hero
funny thing is , i created a 100 mb ram drive, copy something on it and umount it. swap is almost full and 35mb free on internal ram
then tried to start hero browser and it started in about less then 2 secs
Click to expand...
Click to collapse
Interesting. Try setting it as a swap device. Are you sure it created it from RAM? Is there really 100Mb of RAM free?
yup my hero is a lot faster now
create ram partition, copy big ass file ( 80 mb hero file ) phone is very slow
ram and swap are used up to 100%
umount the ram partition , 50 mb free on internal ram and 50 mb used on swap partition
internal ram goes down to 1-2 mb free space after a few seconds but phone is very damn fast and swap is still filled up to 50 mb
samygent said:
yup my hero is a lot faster now
create ram partition, copy big ass file ( 80 mb hero file ) phone is very slow
ram and swap are used up to 100%
umount the ram partition , 50 mb free on internal ram and 50 mb used on swap partition
internal ram goes down to 1-2 mb free space after a few seconds but phone is very damn fast and swap is still filled up to 50 mb
Click to expand...
Click to collapse
You are basically just forcing the phone to use all swap instead of RAM. Some people set their swapiness to 100, which makes the phone use swap whenver possible. It's strange that swap would perform better than internal RAM. I have some ideas for making Hero run better but I can't get Compcache running on JACxHEROski. Which Hero are you running?
miketaylor00 said:
You are basically just forcing the phone to use all swap instead of RAM. Some people set their swapiness to 100, which makes the phone use swap whenver possible. It's strange that swap would perform better than internal RAM. I have some ideas for making Hero run better but I can't get Compcache running on JACxHEROski. Which Hero are you running?
Click to expand...
Click to collapse
You need to do it via rzstool
And her I thought I was an idiot for not being able to get get compcache running thru the userinit....
I'm sorry to hear that this seams like it can't be done currently but I'm glad I at least created some good conversation amongst everyone.
My whole idea for this was to partition the core apps and limit them/section them to only a certain amount of space to avoid them from force closing since they could have an appropriate amount of dedicated ram to keep them going clean and strong then after all that was taken care of third party apps could have a little space left to run a lot better.
I guess I'm more so just thinking about sectioning off the ram to apps then third party apps.
First off, don't get compcache running through userint.sh edit the user.conf file.
this app is used to increase ram and performance in ur android phone, everyone tells that this degrades sd cards life but its working great for me, i purchased it from playstore and it checks licince verification, if u can crack its licence crack this app and install it on ur phone , sorry i have backuped it but cant crack it, do it if u can and enjoy the app
Please try before you buy with 'Memory Info & swapfile check' their device! This is the most powerful version ever! Exclusive only here in Play Goals!
Insufficient RAM, memory is too small? This need not be! Use your SD card as a working memory expansion!
A great programmer once said to insufficient RAM RAM only helps. Convince yourself how right this man had.
Finally, more memory with a click! Memory from Android 1.6 up with root access and external SD card! More memory means that background tasks can not be completed, and many programs will work correctly in the first place!
On many devices, there are problems with games require a lot of memory, this fixes the problems RAMEXPANDER. And they can play latest games on devices that otherwise would not be able to start such APPs. No more out of memory! No more memory is full!
Languages: English and German
Note: please try before you buy with our app "https://play.google.com/store/apps/details?id=com.roehsoft.meminfo" whether their device ROEHSOFT RAM Expander is compatible, you!
- Free SD card memory as a RAM use (SWAP RAM / SWAP MEMORY)
- Swapfile RAM expansion up to 4.0 GB (file system limit)
- No limit on SWAP partition!
- The usual performance degradation when paged not occur with sd card from class-8
- Widget for PNP swap (swap on / off swap)
- Detailed Memory Information & Analysis
- Autorun
- Swappiness kernel parameter set
- Easy foolproof use
(1 click optimization and automatic calculation)
- Supporting Tung all Android devices (root access and Kernelswap support)
Note: please try before you buy with our app "https://play.google.com/store/apps/details?id=com.roehsoft.meminfo" whether their device ROEHSOFT RAM Expander is compatible, you!
Should it come to problems please contact me before they write such queries to review forum!
not enough memory? equal to no more! More games to play and run more applications simultaneously! All you have to only increase your memory. And up to 4 GB! Larger memory, instead of using task killer or memory optimizer.
ROEHSOFT Ram Expander is more effective than any other tool of its kind Why? The First find out!
ROEHSOFT RAM expander support via a widget at lightning speed and off of extended memory.
This way you can remove the SD card despite swapfile or deploy via USB.
Also, you can important, elementary the swap kernel parameters even control the effectiveness of extended memory increase.
To gain root access you Linkk this helps any further http://shortfuse.org/.
Just affordable entry level phones often have little Ram, help either here or Task Killer programs continue but one uses a swapfile, which is enough memory available. ROEHSOFT Expander turns your device more easily. Many applications, you can start at the same time and do not have to worry about your Ram.
Extends every Android device up to 4 GB of memory in which it creates a swap file on the SDCARD.
Maximum size of the swap file is architecture requires 4GB!
By setting the swappiness value, you can control the behavior of the kernel, the higher the value the more is outsourced.
Please note! For any damage that may result from the use of this software are not responsible!
Well, sharing paid apps aren't allowed here so its a kind request to the op that you shut this thread as soon as possible before the well know forum moderator "jotha" sees this . , you'll be in a great trouble ..
Sent from my HTC Explorer using xda premium
Blue3125 said:
Well, sharing paid apps aren't allowed here so its a kind request to the op that you shut this thread as soon as possible before the well know forum moderator "jotha" sees this . , you'll be in a great trouble ..
Sent from my HTC Explorer using xda premium
Click to expand...
Click to collapse
^^ THIS !
This may be a general question for all android devices or not but I was curious about adding swap space to this device. It has 1 gig of ram and many may consider that to be enough, and it might be. I have cyanogenmod 10.2 installed and tried to enable zram, 10% seems to be the best setting as anthing higher caused a game to pop up a notice saying something about low memory and defaulting to lower values. When I checked to see if zram was used however it turns out it was, about 25mb - 34mb after booting. The issue with zram is when multitasking with lecturenotes and moonreader, The tablet would reboot and my notebook that was open in lecturenotes would be missing notes I took or the settings would be greatly messed up, or both. This was with 10%.
I am thinking since it was used, it might be helpful to have an sd card for this reason, to aid in multitasking. This is important to me because I run several apps at once (I wish cyanogenmod had multi windows, and google wouldn't threaten over it). So the question is will there be a benifit to buying an sd card on ebay (class 10 of course) and using it as swap space. It seems this tablet might be on the cusp of the memory being enough. Also I am thinking this might help to future proof it a bit when updating to newer releases of gyanogenmod. The sd card I was thinking of is 4 gigs and may plan on having 1gb swap space (this tablet is for school and other work). The tablet has 32gb storage and that is more than enough for me (I am only using 3gb of space) so I wont need to add anymore storage.
I should also add that when multitasking without zram enabled, the tablet reboots less but still has done it, and so far nothing has been lost in my notebooks. I am thinking that the memory of 1gb is starting to reach its limit, with no apps running I am consuming about 600mbs of it.
vanquishedangel said:
This may be a general question for all android devices or not but I was curious about adding swap space to this device. It has 1 gig of ram and many may consider that to be enough, and it might be. I have cyanogenmod 10.2 installed and tried to enable zram, 10% seems to be the best setting as anthing higher caused a game to pop up a notice saying something about low memory and defaulting to lower values. When I checked to see if zram was used however it turns out it was, about 25mb - 34mb after booting. The issue with zram is when multitasking with lecturenotes and moonreader, The tablet would reboot and my notebook that was open in lecturenotes would be missing notes I took or the settings would be greatly messed up, or both. This was with 10%.
I am thinking since it was used, it might be helpful to have an sd card for this reason, to aid in multitasking. This is important to me because I run several apps at once (I wish cyanogenmod had multi windows, and google wouldn't threaten over it). So the question is will there be a benifit to buying an sd card on ebay (class 10 of course) and using it as swap space. It seems this tablet might be on the cusp of the memory being enough. Also I am thinking this might help to future proof it a bit when updating to newer releases of gyanogenmod. The sd card I was thinking of is 4 gigs and may plan on having 1gb swap space (this tablet is for school and other work). The tablet has 32gb storage and that is more than enough for me (I am only using 3gb of space) so I wont need to add anymore storage.
I should also add that when multitasking without zram enabled, the tablet reboots less but still has done it, and so far nothing has been lost in my notebooks. I am thinking that the memory of 1gb is starting to reach its limit, with no apps running I am consuming about 600mbs of it.
Click to expand...
Click to collapse
Well in my own personal testing i could not see any benefit while extracting 700mb archives under android with 4gb swap space on a 40mbs microsd card, while under full linux desktop with a same workload, swap differently helps keep the system smooth under heavy io load. The conclusion i drew was the android platform deals to memory management differently than the typical desktop os, due to slower emmc chips used as a boot disk for the majority of android devices using this slow, already bottlenecked memory as swap space doesn't make sense (not to mention the use of 2gb swap space on a limited 16gb storage etc), so android runs almost completely in ram, with stricter memory management and allocation allows android to run fine without swap space, although because of this, androids memory management makes little uses of available swap space
JoinTheRealms said:
Well in my own personal testing i could not see any benefit while extracting 700mb archives under android with 4gb swap space on a 40mbs microsd card, while under full linux desktop with a same workload, swap differently helps keep the system smooth under heavy io load.
Click to expand...
Click to collapse
I've been running my desktop without swap for the last 10 years, and as long as you have enough RAM for all your running programs, there will be no problem at all.
Extracting an archive is a mostly sequential operation (single read stream, single write stream), so it also doesn't benefit from caching, which could use the memory that is freed by swapping.
_that said:
I've been running my desktop without swap for the last 10 years, and as long as you have enough RAM for all your running programs, there will be no problem at all.
Extracting an archive is a mostly sequential operation (single read stream, single write stream), so it also doesn't benefit from caching, which could use the memory that is freed by swapping.
Click to expand...
Click to collapse
Ahh that makes sense. I wasnt sure if swap had an effect directly on the extraction, but seem keeped the rest system more stable/ smooth duing the process in the case of GNU/Linux, with swap off similar operations such as installing packages would more oftern lock the tablet up. Might be a placebo though
I also dont set swap on my Linux desktop, as it has plenty of ram but the benitfit of swap space is somewhat more noticable due to the lack of ram on the tf700.
JoinTheRealms said:
I also dont set swap on my Linux desktop, as it has plenty of ram but the benitfit of swap space is somewhat more noticable due to the lack of ram on the tf700.
Click to expand...
Click to collapse
I just want to share my user experiences on the swap space... It does seem to improve the tf700 with swap space due to the lack of RAM (1GB)..
Thanks for all the useful posts
Thanks for all the posts, I have my sd card on the way. I will post my experience when I get my sd card but I am sure it is safe to say there will be a benefit. I use linux to at home and have 8 gigs of ram on that computer, I lessen the swap after install to about 512mb because 8 gigs is more then enough. I leave some however just incase of any issues like ram going bad. On another computer in the house that has limited ram (1.5 gigs) I have enabled zram (384 mb) and added two old flash cards (1 gig each) to a pci raid card and those were converted to swap. I then altered the fstab to reflect the order of priority I wanted them used in. The reason is that when the swap is used from the hard drive, and the hard drive is being written to, can cause a slow down. So with the 2 flash cards at 1 gig each (the swap seen as 2 gigs) it seemed to speed it up. I just posted that because of the nix users and it seemed like a good plan to run it that way.
Ok, got the sd card
So I recieved the sd card today and applied the swap space to it using root swapper (max setting is 256mb, I figured i can find a way to increase it later if I need to). The defaut location in many of the swap applications will not work on this device however, the sd card mounts at /storage/sdcard1 in my case. So it has to be entered manually (might just be cyanogenmod). Also the device was picky when insalling the card, it would only say blank sd card or cannot read filesystem. I had to install the card in the dock, format it from cwm recovery, (vfat if I remember correct, ext2 and ntfs had issues, avoided ext3 and ext4 cause journaling will cause more wear and tear).
The sd card is a scandisk ultra sdhc uhs-1 8 gigs. From my research that is the fastest this tab can handle. I also use optimising programs like greenify (epic save everything app), pimp my rom (almost every tweak applied), and some pretty efficient tweaks in the settings as well. I also have HALO))) installed and working (epic multiwindow app that works with native programs and almost any rom).
The resuts:
I tested it many ways, I rebooted to see use (none was used because swap starts after boot), I opened apps normally (browsers and things), and it showed 9kb's was used. I then put it to the tests, I open four windows in halo, these were youtube, moonreader pro with a pdf ebook, lecturenotes (awsome note and handwriting app with tons of functions), and Supernote pro (not the best note app). Constantly switched between the apps and messed with settings with them open. The max of swap used was around 10mb(keeping in mind that when I switch windows the app(s) I leave get paused making it hard to tell actual usage because I had to swith the terminal and type "free". I then ran antutu bechmark and gpubench (my tab stills score pretty well) and got a little higher swap usage but not much.
As for the feel of it, it seemed to help when opening many windows in halo, this is the primary reason for my doing this. As for other more normal uses I really didnt see too much of a difference, I did test games however and they did seem a little better (could be placebo) but I am not really sure why they would except android cached other apps to free memory. Reopening apps seemed faster. Also because of apps like greenify my memory usage is decreased so I am sure typically swap would have seen more use.
The conclusion is that at this point I really didn't notice much of a boost for any normal use, but I will definately keep the swap space on due to the boost when using halo and not to mention that I will be updating to android 4.4 soon and it might need more memory. Swap at this point seems more like a pre emptive strike, but it does help with multitasking.
about swap
://androidforums.com/boost-mobile-warp-all-things-root/610449-ram-swapping-without-swapper2.html I actually followed a guide on android central and redid the swap file to 1 gig to swap instead of using a program, this worked better. (add http in front), when i disabled swap it was noticeable that there was a boost. then reenabled it this method.
I have a mobile - Panasonic T21. It has an internal memory of 4, of which about 800mb is system memory, 1gb is user partition memory(for apps), and 1.56g is user available memory(for files). Is it possible to increase user partition memory(for apps). I've swapped my internal memory to my external sd(16gb), so that I can fit my heavy games. Everything was going fine. But, now I've started to run out of memory. is there any way to get some memory from user available memory and make it available for user partition memory. I do not use my 1.56gb also,any way, I just use my 16gb. Please help me out. My phone is rooted, of course!
Respected Experts and Moderators,
Apologies if I posted my question in a wrong forum.
I have a mobile running Android 4.2.1 and I GB RAM. I landed into a typical problem of 'Space Running Out'. My App Manager shows that I have roughly 50 MB free memory.
I tried various methods like Cache Cleaner, ES File Explorer (to clean log files etc). However, the problem would return back. Than I learned about applications like Roehsoft's RAM Expander that can create a swap file to increase the RAM. My phone is compatible with the app as the result of test done their 'MemoryInfo-SwapCheck' app shows. Since, this is a paid app, I wondering how does it hooks into the Android System so that the:
# Android is aware of the swap file
# Android is able to use the swap file as an extension of its RAM
# Any effect on performance since I/O from internal RAM would much much faster than from a memory card
Thanks.
PS: I am a software engineer but my field of expertise is web applications.
manu_12 said:
Respected Experts and Moderators,
Apologies if I posted my question in a wrong forum.
I have a mobile running Android 4.2.1 and I GB RAM. I landed into a typical problem of 'Space Running Out'. My App Manager shows that I have roughly 50 MB free memory.
I tried various methods like Cache Cleaner, ES File Explorer (to clean log files etc). However, the problem would return back. Than I learned about applications like Roehsoft's RAM Expander that can create a swap file to increase the RAM. My phone is compatible with the app as the result of test done their 'MemoryInfo-SwapCheck' app shows. Since, this is a paid app, I wondering how does it hooks into the Android System so that the:
# Android is aware of the swap file
# Android is able to use the swap file as an extension of its RAM
# Any effect on performance since I/O from internal RAM would much much faster than from a memory card
Thanks.
PS: I am a software engineer but my field of expertise is web applications.
Click to expand...
Click to collapse
The warning you're getting is not related to low RAM but rather low on internal memory (internal sd card) because Android will never warn you about low ram ( it has a low memory killer that kills running apps in background when low on RAM).
So what you should be doing instead is increasing internal memory, follow this guide http://forum.xda-developers.com/showthread.php?t=2142844 , if you don't want to use a pc for partitioning your sd card use this app instead https://play.google.com/store/apps/details?id=com.sylkat.AParted
If you insist on increasing your Ram with swap files take look at this guide http://www.google.dz/url?q=http://f...ggNMAA&usg=AFQjCNHUQFy9IB9qBypg2moBrjPZ2FYVjw
Good luck
Don't just say Thanks, press the ? button.
Thanks @a. felon. This solution has helped. Going through various blogs gave me the impression that RAM Expander solution and link2sd card solution are alternatives to resolve the same problem.