SD to RAM - JASJAR, XDA Exec, MDA Pro ROM Development

We all know that PCs use pagefile, that helps when running on small amount of RAM. Our UNIs have 64mb, that's not enough, it alows us to launch 1-2 programs simultanously and that's all. running out of RAM!
I wonder, is it possible to assign part of our SD card's memory (approx 64mb) as RAM (pagefile or memory dump, doesn't matter). It will be rather slow than infeneon chips but it's worth trying&using
Dear ROM developers, think about it. Maybe it's possible...

Antigen said:
We all know that PCs use pagefile, that helps when running on small amount of RAM. Our UNIs have 64mb, that's not enough, it alows us to launch 1-2 programs simultanously and that's all. running out of RAM!
I wonder, is it possible to assign part of our SD card's memory (approx 64mb) as RAM (pagefile or memory dump, doesn't matter). It will be rather slow than infeneon chips but it's worth trying&using
Dear ROM developers, think about it. Maybe it's possible...
Click to expand...
Click to collapse
Well this has already been talked about before, but maybe not here...
You should take a look at this, as it points out why this is currently not possible.
http://blogs.msdn.com/windowsmobile/archive/2006/03/31/566187.aspx
Take care,
-Jwrightmcps

I read a thread in the last few days that outlined a complicated, but workign method of achieving this in dev& hacking

Midget_1990 said:
I read a thread in the last few days that outlined a complicated, but workign method of achieving this in dev& hacking
Click to expand...
Click to collapse
Even if one was able to get a working method, it would be highly risky and incredibly slow. The Bus speed is so low on the Uni, and having "Data" paged to your SD Card would be a very dangerous solution to running a few more apps at once. Performance wise, it would be like paging to a USB 1 flash drive on your pc....
I would rather know my open data is safe than take the chance of it being corrupted or lost on SD card.
Just my views....... wait for the 128 mb upgrades........

And, instead of having 45Mb storage and 50Mb of RAM, is it possible to make 20Mb storage and 75mb of RAM???
or used the storage intern for the pagefile???

Related

Swelldisk 300% - Any Comments?

Has anyone bought and used Swelldisk 300%?
I understand it uses a compression technique, so it will slow down the device, but it would be really nice to have 768MB SD / Wifi rather than 256 MB. That would let me put almost 200 songs on the SD.
I have searched about the software online, but were not able to find any reviews on it. If it runs as promised, I think $40 would be worth it.
some pda related sites, as well as handango, etc. advertises it.
here is the link: www.swelldisk.com
Didn't use is.. But I don't think you can store more mp3/wma files on a swelldisk preparated SD than on a standard formatted SD..
MP3/WMA's cannot be compressed more that they already are...
I would buy a new SD card for that amount of money.
Hello ..
Im using this software .
gotit from pocketgear.
Im using a 2GB SD card and now using SwellDisk300% have 5.8GB of space indicated by rescoexplorer and tools.
sad to say there is no demo to test it.
I took the risk.
up to now im satisfied
I think this is something similar...http://www.pocketgear.com/software_detail.asp?id=22364
I used this software and everything went well for some time. Suddenly the data on de drive could not be read anaymore. I had to reinstall a lot of software and restore data. So i will never use this software again.
how about de performance?
rastaman said:
I used this software and everything went well for some time. Suddenly the data on de drive could not be read anaymore. I had to reinstall a lot of software and restore data. So i will never use this software again.
Click to expand...
Click to collapse
hi,
so how about the performance affected? i am interested in it but afraid of large degrade of performance on my prophet with such a low CPU speed...

how to increase the ram memory in Windows mobile?

increase the ram memory in windows mobile
are there some registe hack ?
hi someone helpme please!!
mislatero said:
hi someone helpme please!!
Click to expand...
Click to collapse
Dude, you can't increase your ram with a registry tweak. Ram is an actual, physical component. You would have to see if you can buy ram upgrades for you device, and take apart your device and insert the new ram. It's not like ppc 2003 or below, when everything was ram, and you could choose how much of your total ram went to storage, and how much went to program memory. This way meant that when you ran out of power, you lost all your data. Now, storage memory is rom, and program is ram. Even on older devices you had a certain total amount of ram. You can't do anything about it except maybe to physically upgrade your ram.
I hope this helps!
bejank said:
You can't do anything about it except maybe to physically upgrade your ram.
Click to expand...
Click to collapse
Exactly. I'm pretty sure it is impossible on your phone to even replace the RAM physically. It's not like a computer, it is built onto the motherboard in your phone. Upgrading the RAM physically was possible on some older devices but you had to send it to some company to do it. Your phone is stuck with the amount of RAM it currently has.
Sorry,
dwizzy130
Maybe mislatero want is a way to maximize the empty memory size.
As I noticed, my WM6.5 will store all my emails into the main memory rather than store into my big Build-in Storage (more than 7G storage space). I have looked around and found no option to do so.
Maybe anybody can give a hints on this?
Sorry, Mislatero, I might have used your thread to ask my questions... hope you dont mind..

Save apps in SD memory card

Hi
Got a Samsung Galaxy i9000 S. I have a 32 Gb memory card. Is it a good idea to save Apps to it? I realise that if something happens to the card I've lost my Apps. However, I have had Smartphones with far less than the 16 Mb flash memory I've got now (I think that's it?) and saving too many programmes and Apps to the internal memory caused the phone to freeze. Since I have 32Gb of memory with nothing else but, songs I thought it may be a good idea. Is that OK?
Thanks
BrianGM said:
Hi
Got a Samsung Galaxy i9000 S. I have a 32 Gb memory card. Is it a good idea to save Apps to it? I realise that if something happens to the card I've lost my Apps. However, I have had Smartphones with far less than the 16 Mb flash memory I've got now (I think that's it?) and saving too many programmes and Apps to the internal memory caused the phone to freeze. Since I have 32Gb of memory with nothing else but, songs I thought it may be a good idea. Is that OK?
Thanks
Click to expand...
Click to collapse
If you have sufficient free space on your Internal Memory just leave it be. I would only start thinking of Apps to SD solutions if you are running out of space and really need more.
DirkGently1 said:
If you have sufficient free space on your Internal Memory just leave it be. I would only start thinking of Apps to SD solutions if you are running out of space and really need more.
Click to expand...
Click to collapse
yap,,i would thinking of app2sd or a2sd darktremore maybe,,(if internal space like hell)

How much memory does this device have?

I understand this device has a rather limited amount of available space. I was wondering if anyone could give me an estimate to how much data is available after factory startup. Thank you!
Also, is all memory included as part of this '16gigs', such as sd card stuff, apps, and the ROM? Thanks again! Just want to find out what EXACT space I am working with here when I get this device
4 gb reserved for system, 2 gb for apps. Available storage = 10 gb. Yeah its that bad.
Sent from my HTC VLE_U using XDA
Damn that is bad! Really making me reconsider but I would rather have this than GSiii. Thanks, from a fellow Chicagoan
I have no use for MORE than 10 gigs in a phone. Quite frankly, I utilize some minor space on Dropbox as well.
If I need more space than 10gigs, I have a couple hard drives for that.
I'm sure we'll have easy access to USB host at some point, which will work for me. I mainly want the extra space for nandroids, app backups and pictures without using Dropbox for everything. I don't use my phone for movies (all on my tablet) and no storage needed for Google Music, but still worried that I'll fill up the 10gigs. Had 16 gb card in my HD2 and that was pretty much always full.

Phone finally fast

Hey Guys,
I finally got my phone to work at a decent speed. Here are the things I did:
1. Used Apps2SD to move the apps from internal storage to SD Card. Wondering why this helped? As far as I understand the apps are run in RAM and internal storage is used for storing data and apks etc. RAM is freed up by Android as and when needed but freeing up internal storage doesn't give android more RAM.
2. Use Autorun Manager to prevent some apps from starting up and remaining in memory. Now this I understand because this gives more RAM to android and avoids unnecessary swapping when applications are started up.
3. Used 'SD Booster' to increase sd cache size to 8192Kb. This gave some initial benefits but later on it became very slow as usual.
Bottom line is I am still puzzled by Android memory and SD card management. I am pretty sure though process swapping in and out of memory is what caused my phone to slow down. My Samsung Droid Charge is supposed to have 512MB of RAM but most memory managers show only 374MB and 2 GB of internal storage and most tools show only 1.2GB. Why would this be? Am I missing something or should I use a different tool to analyze my memory.
Not sure about RAM but usually when u buy a hard drive the bigger the hard drive the lower the actual number of gigs. Maybe it is actually 1.2GB
Sent from my SCH-I510 using xda app-developers app
1. This one must be a placebo effect because if anything moving apps to sd card will make the phone slower. Our internal memory has way higher i/o speeds (especially on ext4) than the measly class 2 sd.
2. This is usually not a good idea. The processes you "block" will actually still run but they will be insta-killed. They will keep trying to start up and will drain the battery.
Sent from my handheld computer using electromagnetic radiation.
JihadSquad said:
1. This one must be a placebo effect because if anything moving apps to sd card will make the phone slower. Our internal memory has way higher i/o speeds (especially on ext4) than the measly class 2 sd.
2. This is usually not a good idea. The processes you "block" will actually still run but they will be insta-killed. They will keep trying to start up and will drain the battery.
Sent from my handheld computer using electromagnetic radiation.
Click to expand...
Click to collapse
Thats what I thought. Im no guru, but out of all the reading Ive done, they have all said that moving apps from the sdcard to internal speeds up things.
Im looking at ways to speed up my wife's droid charge. Shes been complaining about it and finally gave me the go on rooting and maybee ROMing. I would like to stick to stock if possible so she wont run into any problems but if I have to I will install a custom rom. Any links?
Nope this is no placebo effect. The phone has become very fast. There are several posts that say that moving the apps to sd card speeds up the phone. In fact of all the things this is what sped up my phone the most. Why else would app2sd be so popular? Read #4 on http://www.talkandroid.com/guides/b...lean-up-and-speed-up-your-android-smartphone/ .
To further speed up my phone I am trying to overclock. My phone is stable at 1.2GHz but at 1.3 GHz it reboots after some time. To make it stable at 1.3GHz should I increase the voltage at that frequency?
salilsurendran said:
Nope this is no placebo effect. The phone has become very fast. There are several posts that say that moving the apps to sd card speeds up the phone. In fact of all the things this is what sped up my phone the most. Why else would app2sd be so popular? Read #4 on http://www.talkandroid.com/guides/b...lean-up-and-speed-up-your-android-smartphone/ .
To further speed up my phone I am trying to overclock. My phone is stable at 1.2GHz but at 1.3 GHz it reboots after some time. To make it stable at 1.3GHz should I increase the voltage at that frequency?
Click to expand...
Click to collapse
Read it again. That's only about getting extra app space on smaller-storage devices. They actually recommend against moving things you use frequently in your linked article.
I'm with the others. Any gains you're seeing from this are placebo. There's nothing inherently faster about external storage.
---------- Post added at 01:38 PM ---------- Previous post was at 01:34 PM ----------
salilsurendran said:
Hey Guys,
My Samsung Droid Charge is supposed to have 512MB of RAM but most memory managers show only 374MB and 2 GB of internal storage and most tools show only 1.2GB. Why would this be? Am I missing something or should I use a different tool to analyze my memory.
Click to expand...
Click to collapse
It has a total of 512MB RAM, and that is for everything, so the GPU and other such things have to take their share from the total pool. On the GB releases, that leaves us with 374MB. It's better than it used to be. On the Froyo releases, we only had 327MB to work with.
bubarub said:
Not sure about RAM but usually when u buy a hard drive the bigger the hard drive the lower the actual number of gigs. Maybe it is actually 1.2GB
Sent from my SCH-I510 using xda app-developers app
Click to expand...
Click to collapse
No, on a hard drive (or solid state drives or even SD/memory cards), what you buy is what you get. However, due to formatting, space reserved for backup/spare sectors, and what is considered a "gigabyte" to manufacturers vs consumers (1000 mb vs 1024 mb) you often end up with around 95% (probably off on that percentage) of the stated capacity. With RAM this is not the case, as that type of memory doesn't need formatting as its holding raw data with the computer making up its structure. And manufacturers of RAM are in agreement with consumers as to what a gig is.
Sent from my SCH-I510 using xda premium
bubarub said:
Not sure about RAM but usually when u buy a hard drive the bigger the hard drive the lower the actual number of gigs. Maybe it is actually 1.2GB
Sent from my SCH-I510 using xda app-developers app
Click to expand...
Click to collapse
This is the difference between a gigabyte and a gibibyte. Hard drives are usually advertised in gigabytes (literally 1 billion bytes), while most OSes use gibibytes (2^30 bytes, or 1,073,741,824 bytes), since they do everything in "base 2", or binary. So an advertised 10GB hard drive has 10 billion bytes. Once you format the drive, the OS reports size in gibibytes, so you end up with:
Code:
10,000,000,000 / 1,073,741,824 = ~9.31GiB
That's also why if you look on most hard drive packages, it says "formatted size may be different than advertised size" or something similar.
Just a random fact of the day. Feel free to ignore it.
On topic: I don't believe the giga/gibi (or in the case of phone RAM, mega/mebi) is the issue. 512MB converted to mebibytes is roughly 488MiB. I believe the Charge is a 512MB device with some of that memory reserved for OS/system-only purposes. I could be wrong on that, however, so if anyone could clarify that'd be great.
Edit: Could have sworn I read through all of the replies before replying myself. I guess I didn't because multiple people beat me on both points by a day. Sorry about that duplicate info.
Cilraaz, let's just say you compiled both answers into a single post...
Sent from my SCH-I510 using xda premium
The number one lesson I learned from buying this phone
Check the amount of run time memory before you buy a phone, especially if you have two companies like Verizon and Samsung loading bloatware. You were forced to root the phone and rid yourself of the bloatware, or not buy apps. I totally agree with the OP. He is 100% correct about the run time memory.
So I restored back to factory to get ready for another root. After the required Verizon and Samsung updates, hitting the clear memory button, I'm using 268MB of 373MB. Now I know the OS can swap, (because we love paging), but it really is ridiculous. I can't wait until March. Good luck everyone.
dbaps said:
Check the amount of run time memory before you buy a phone, especially if you have two companies like Verizon and Samsung loading bloatware. You were forced to root the phone and rid yourself of the bloatware, or not buy apps. I totally agree with the OP. He is 100% correct about the run time memory.
So I restored back to factory to get ready for another root. After the required Verizon and Samsung updates, hitting the clear memory button, I'm using 268MB of 373MB. Now I know the OS can swap, (because we love paging), but it really is ridiculous. I can't wait until March. Good luck everyone.
Click to expand...
Click to collapse
I couldn't understand what you are saying here. From what I understand you are saying that is that when you rooted your phone you had 512MB of memory but after you installed Verizon and Samsung updates it started saying you had 373MB. So is it that Samsung and Verizon updates are taking away about 147 MB of memory? What is going to happen in March?
salilsurendran said:
I couldn't understand what you are saying here. From what I understand you are saying that is that when you rooted your phone you had 512MB of memory but after you installed Verizon and Samsung updates it started saying you had 373MB. So is it that Samsung and Verizon updates are taking away about 147 MB of memory? What is going to happen in March?
Click to expand...
Click to collapse
No. Hardware wise the Charge has a total of 512 mb of RAM. The GPU and other hardware have to take from that pool, and the end result is that the Android OS has 373 MB of RAM to use. Verizon and Samsung bloatware and updates have no control over the hardware aspect, but the bloatware DOES utilize some ram while the phone is running (but does not take from that pool). March is probably when his upgrade is.
Sent from my SCH-I510 using xda premium
salilsurendran said:
Hey Guys,
I finally got my phone to work at a decent speed. Here are the things I did:
1. Used Apps2SD to move the apps from internal storage to SD Card. Wondering why this helped? As far as I understand the apps are run in RAM and internal storage is used for storing data and apks etc. RAM is freed up by Android as and when needed but freeing up internal storage doesn't give android more RAM.
2. Use Autorun Manager to prevent some apps from starting up and remaining in memory. Now this I understand because this gives more RAM to android and avoids unnecessary swapping when applications are started up.
3. Used 'SD Booster' to increase sd cache size to 8192Kb. This gave some initial benefits but later on it became very slow as usual.
Bottom line is I am still puzzled by Android memory and SD card management. I am pretty sure though process swapping in and out of memory is what caused my phone to slow down. My Samsung Droid Charge is supposed to have 512MB of RAM but most memory managers show only 374MB and 2 GB of internal storage and most tools show only 1.2GB. Why would this be? Am I missing something or should I use a different tool to analyze my memory.
Click to expand...
Click to collapse
What rom are you using? My son went swimming with his fascinate and I'm in the process of reviving my dc. I have compiled a few odds and ends and am mostly concerned about speed as well.
texbuck
texbuck said:
What rom are you using? My son went swimming with his fascinate and I'm in the process of reviving my dc. I have compiled a few odds and ends and am mostly concerned about speed as well.
texbuck
Click to expand...
Click to collapse
I am using Eclipse 1.4 with PBJ.
Ok so I can clearly see that my phone is becoming slow again. Not sure as to what it is related to. Though one thing that surprises me is that I overclocked the CPU to 1.2 GHz and set the governor as 'conservative' and sometimes even ' smartassv2' but it changes to 'ondemand' even though I never changed it to that value. Why is this happening?
salilsurendran said:
Ok so I can clearly see that my phone is becoming slow again. Not sure as to what it is related to. Though one thing that surprises me is that I overclocked the CPU to 1.2 GHz and set the governor as 'conservative' and sometimes even ' smartassv2' but it changes to 'ondemand' even though I never changed it to that value. Why is this happening?
Click to expand...
Click to collapse
Kernel? OC app?
Sent from my SCH-I510 using xda premium
salilsurendran said:
Ok so I can clearly see that my phone is becoming slow again. Not sure as to what it is related to. Though one thing that surprises me is that I overclocked the CPU to 1.2 GHz and set the governor as 'conservative' and sometimes even ' smartassv2' but it changes to 'ondemand' even though I never changed it to that value. Why is this happening?
Click to expand...
Click to collapse
Plugging the phone into a pc does that for some reason.
Sent from my handheld computer using electromagnetic radiation.
I have to agree that even though my phone was initially fast it slowed down considerably after some time. Frustrated I then backuped my phone using Titanium backup and installed Tweaked 2.2 Rom + PBJ. But this time I did the conversion to EXT4 and the phone has become super snappy and the fastest I have ever seen. However, I am not rejoicing right now because I have only installed some very necessary apps like navigation, yelp etc. Don't know if the phone will be come slow after I install more apps. On Seepu I can see for the first time my used memory is green and this probably is a major reason why the phone has speeded up. Another factor is the EXT4 conversion.
Infinity was known for slowing down over a short period of time. Tweaked 2.2 is quite a bit better. But running a Droid Charge for several days without rebooting it once in a while will cause it to slow down too. Just reboot when it starts slowing down. It should help.
Before I add any more apps I want to save this state of the phone so that I can go back to this if the performance degrades. What do I have to do for this? I used Titanium backup but I see that it saves app data and you have to install each individual app. What I want is to make one click and restore my phone back to the state it previously was. Should I do a nandroid backup

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