Is ther any way to create extended RAM.
how we have virtual memory for windows PC
i am gussing it is the same idea.
Using SD Card
arshiv said:
Is ther any way to create extended RAM.
how we have virtual memory for windows PC
i am gussing it is the same idea.
Using SD Card
Click to expand...
Click to collapse
It's been discussed to death. The answer is, unfortunately, no. If you really need more RAM find a ROM that uses the nueKernel to disable the camera and free up some more RAM.
i think there is a new window of opportunity with the sim card modification
i know they make high capacity sim cards
i'm sure it would be some extensive programming
i think it comes down to the ability of any of these high capacity sims throughput.
and willingness of programmers to come together
eigerzoom said:
i think there is a new window of opportunity with the sim card modification
i know they make high capacity sim cards
i'm sure it would be some extensive programming
i think it comes down to the ability of any of these high capacity sims throughput.
and willingness of programmers to come together
Click to expand...
Click to collapse
It would make more sense to me to use the already available, up to 16GB, SD card memory. If that can't be done (which should be easier), why take a more complex and harder approach? Unless there is something special about the memory on SIM cards that makes it more appropriate?
What benefit does adding a SIM card to a CDMA phone have anyway?
the modification exists to add a sim card to the mogul/titan to use the phone in asian markets to the best of my knowledge
intensive sdcard input output severely shortens its life
maybe, perhaps, these high capacity sim cards can handle higher throughput
Related
Wallaby has a 32 mb built in memory. How can this be increased. If so How MUCH & How?
Note i have installed a 128 mb SD card and have installed most of the softwares on it but my system shows low memory while the SD card is nearly 50% empty.
I have tried to use the slider in the settings to increase the momory but it slides back and is not releasing more memory for the system.
kindly advise how to increase the momory
regards
aamer sheikh
There is a company that adds physical ram to the phone but now that prices for the xda 1 are so low I would not consider that as a realistic option. You could maybe buy an xda 1 with 64 megs of memory and a broken screen and transplant the mother board to your phone.
I think he might not know that he might free up some memmory on his devices rom. If I were you sir, I would sync my data (not backup), hard reset, reinstall everything into where I wanted it, and resync. If you have experience with hot air rework, or have a friend, you might aquire the chips and do it yourseld. THen again, if you didn't know you could add memmory to a wallaby, then you probably shouldn't do that. Be careful and good luck!
PS I'm not responsable if you junk your device, I am only giving suggestions of what could be done, not telling you it should be done!
Even by physically adding the memory chips you can get only 64meg, anything above that has to be software driven paged memory I think, bit like using a fast sd card.
I know that 128+ mb requires a driver.... I wonder if you could get in 96 somehow???? anyone done that?
I think the hardware limits direct memory access above 64.
can the chips be stacked? I thought I had read that somewhere; cut a certain pin(s) and solder/joint a second chip ontop of the origionals?????
are the user accessable ram and rom on the same chip or are they seperate chips?
could the rom size be increased? (never looked into it)
Where would one acquire the chips?
Hi,
Can anyone having micro SD 2GB ultra card can tell us about its performance? I have heard that 2Gb card as such had some impact on the performance of the phone and slows it a bit down? Is there any improvement using this faster card?
I have SanDisk 2GB MicroSD - in my opinion it's quicker than my previous 1GB.
I have seen sandisk 2gb ultra II micro sd card in the market. I just wanted to know if it improves the performance over the simple 2gb micro sd card?
i have a SanDisk 2GB standard MicroSD and performance is great, no slow downs on anything.
its a lot faster than a 1Gb card (can't remmeber make, probably SanDisk) that was with my Universal, that was sloooow...
sorry that that doesnt really answer your question, but in my opinion i think that there isn't much gain in opting for the Ultra MicroSD card, as there's not anything wrong with the standard one!
Comparing performance with different flash cards, be sure they are formatted with the same file system (FAT16/FAT32) and the same cluster size. Instead, your comparision results ae meaningless.
Lurker0 said:
Comparing performance with different flash cards, be sure they are formatted with the same file system (FAT16/FAT32) and the same cluster size. Instead, your comparision results ae meaningless.
Click to expand...
Click to collapse
And what are the best in your opinion? (cluster size and 16/32)
sergiopi said:
And what are the best in your opinion? (cluster size and 16/32)
Click to expand...
Click to collapse
I'd suggest you to search for existing threads and articles.
There is no a one-for-all solutions. One thing that I'd recommend is to format with one FAT copy (again, do a search). Then, the bigger the cluster size, the better berformance, but, OTOH, the more space is wasted. With a statistics provided e.g. by SK Tools anybody may make their decision on how to balance. SK Tools also a good tol to format cards with.
As for FAT16 vs FAT32, this is the last thing to decide. If a chosen cluster size allows FAT16 for the card, better to use it. If it does not - you have no a choice but to use FAT32. The only drawback of FAT16 is a fixed root directory size, which is not a big isue with large (16K to 64K) cluster sizes required for FAT16 on big cards.
But the main point for this thread still is: comparing flash card speeds, use the same format parameters.
Had anyone done this kind of comparison on different micro sd cards?
It imaging that this level of testing is about pointless, the typical bottleneck here is likely to be the reader device, not the card.
The phone will likely be the slowest aspect, at least when compared to a desktop reader...
You might find a turtle that can sprint, but it will still be a turtle
Anyone capable of doing such upgrade??? guys Mogul needs a memory boost to be an ultimate device. it must be possible to preform a Ram upgrade lets brain storm this and make a step by stem mod chip like mod or even some one could start a service perhaps.
what is needed......
lucifermoh said:
Anyone capable of doing such upgrade??? guys Mogul needs a memory boost to be an ultimate device. it must be possible to preform a Ram upgrade lets brain storm this and make a step by stem mod chip like mod or even some one could start a service perhaps.
Click to expand...
Click to collapse
Someone with intimate knowledge of the memory map and microcode for the Qualcomm processor inside. This person would have to determine if there is sufficent address space above or below the existing RAM and impliment it in a new firmware flash. I am wondering myself if the reason for the small RAM might be that there is or was no address range available for it, or just maybe short sighted designer decided that this was all that would be needed. If the latter is true then it would be possible. Lastly I would mention that a really good station and tech would be required to change out the RAM for a larger chip, assumeing that one existed in the same package. Might have better luck doing a RAM based add to the microSD slot by adding to a custom engineered card. If someone did that then the applications could be mapped to addresses that already exist and are known. You would end up with a microSD card with maybe 4 gigs of flash and a few gigs of RAM ??????? That might be easier. Food for thought.
Look at this thread... Many extremely smart individuals having this very conversation
http://forum.xda-developers.com/showthread.php?t=350002
I'm familiar with the difference between the class 4 (4MB/s transfer speed) and the class 6 (6MB/s transfer speed). But is there any value in using a class 6 card on the XV6800 (regardless of size)?
I ask because I have a 4GB class 6 A-Data microSDHC card in my XV6800 right now and there is no problem at all with it. However, I am considering purchasing an 8GB class 4 Sandisk microSDHC card. So it got me thinking, even thought the A-Data card is capable of a faster transfer speed, that doesn't mean the XV6800 is ever actually using that extra speed. So would I see any slowdown if I moved to a "slower" spec'd microsdhc card?
I looked around for transfer speeds on the XV6800's microSD card slot and didn't come across anything.
Anyway have any data on this? Thanks in advance.
Depends some on what you are using it for but I doubt you will notice much of a difference. When transferring using a card and a card reader from your computer you may notice a difference but otherwise the interface in the phone itself doesn't seem to be all that fast anyway.
Don't get me wrong, I appreciate the comment, but that's why I'm asking if anyone has any actual data. The device either reads and writes to the microsd card slot above 4MB/s or it does not. I have not found a way to benchmark it so I'm looking for some actual detail. But thank you.
So I found an application that is supposed to measure the transfer speeds of the card slot on a Windows Mobile device. It's from Audacity Audio. The link on Softpedia is here.
I'm familiar with the application because I used the Palm OS version on my old Treo 700P. The problem is that he results always seem inconsistent and confusing.
In any event, I ran the test on two different microSD cards. The first is an empty 1GB Sandisk microSD card with. These cards don't have a "class" rating. The second is a 4GB AData Class 6 microSDHC card. I still had 2.5GB of the 4GB empty.
1GB
Wrt32bit/Wrt8KB/Read8KB
1105/330572/7943757
1105/335208/7710117
1123/366634/7710117
1030/311705/7489828
1070/306242/7489828
Avg
1086/330072/7668729
4GB
1462/109317/6393756
527/111408/6241523
1462/119482/4161015
517/85724/6241523
1581/126334/6241523
Avg
1109/110453/5855868
Honestly, the scores don't seem to make much sense. The read speeds all indicate north of 4MB/s and most of the time above 6MB/s. That's good. But the write speeds seem pointless. 330KB/s (.3MB/s) for the 1GB and 110KB/s (.1MB/s) for the 4GB ?!?!?! That doesn't seem right.
Anyway, any ideas would be welcome.
Write speeds are typically going to be a great deal slower for flash memory. And larger cards being even slower for writing makes a twisted sort of sense. All flash cards have "load-leveling" algorithms built into them to spread the writes across the flash disk in order to reuse locations as little as possible (flash memory cells have a limited lifetime). So the bigger the card, the more memory the load leveler has to manage. Of course, I could have it completely wrong....
Hi guys
I'm looking to buy a Micro sd card, samsung 32GB, class 10
So my questions are:
1- If someone already using sd card just like this one, tell me is it working fine with your android device?
2- Do you think that patriot or some other manufacturer cards are better then samsung?
3- Does your phone in some cases really feals faster with an sd card with bigger class number ( does reading speed of your card effect phone's speed? )
4- I heard that class 6 ( 6 MBps ) is more than enough for android devices, and also that some class 10 cards slow down a device, is it true?
5- Will i ever have enough memory on my phone
I know that there are the same threads on forum somewhere, but i need answers quickly and thats why im opening this one..
Marchello1 said:
Hi guys
I'm looking to buy a Micro sd card, samsung 32GB, class 10
So my questions are:
1- If someone already using sd card just like this one, tell me is it working fine with your android device?
2- Do you think that patriot or some other manufacturer cards are better then samsung?
3- Does your phone in some cases really feals faster with an sd card with bigger class number ( does reading speed of your card effect phone's speed? )
4- I heard that class 6 ( 6 MBps ) is more than enough for android devices, and also that some class 10 cards slow down a device, is it true?
5- Will i ever have enough memory on my phone
I know that there are the same threads on forum somewhere, but i need answers quickly and thats why im opening this one..
Click to expand...
Click to collapse
1. It works fine.
2. It just user preference. Their both great.
3. Reading and writing to the SD card will be faster. It won't affect phone speed unless your device is using certain mods such as swaps, int.ext. sd swaps, etc. or you have apps on your SD card.
4. While class 6 may be quite fast for a device, there is no way a class 10 could be slower.
5. That's up to you .
tnx Theonew
if i understood it well, an app called swapper 2 can allow device to use some memory from partitioned sd card like a ram memory and provide it a slightly better multitasking, and speed.. ?
And i have read that it can also affect an sd card's life..
So, is it worth it?
Marchello1 said:
tnx Theonew
if i understood it well, an app called swapper 2 can allow device to use some memory from partitioned sd card like a ram memory and provide it a slightly better multitasking, and speed.. ?
And i have read that it can also affect an sd card's life..
So, is it worth it?
Click to expand...
Click to collapse
Yes, swapping can degrade the life of the SD card but it is worth it if your device is a low-end one (and slow). It will assist in stuff like gaming, etc.
No, I really don't think its worth it. It really affects the cards life and does not really add much ram, even for slow phones...
Sent from my GT-I8150 using xda app-developers app
krismerful said:
No, I really don't think its worth it. It really affects the cards life and does not really add much ram, even for slow phones...
Sent from my GT-I8150 using xda app-developers app
Click to expand...
Click to collapse
An additional 256mb is quite a lot compared to 192mb (total).
Quick benchmark of Samsung SD card class 10 in the ASUS Transformer TF101.
Code:
[email protected]:/home/kuisma# hdparm -t /dev/block/mmcblk1p2
/dev/block/mmcblk1p2:
Timing buffered disk reads: 60 MB in 3.09 seconds = 19.43 MB/sec
Reference, the internal nand flash (/data partition):
Code:
[email protected]:/home/kuisma# hdparm -t /dev/block/mmcblk0p7
/dev/block/mmcblk0p7:
Timing buffered disk reads: 52 MB in 3.10 seconds = 16.79 MB/sec
If comparing read vs write, large blocks vs small, sequential vs random etc, the SD Cards wins a few times, the internal flash a few. It's more or less a draw. I would say this SD card got "good enough" performance, although far from SSD performance.
good enough for smartphone
are you talking about solid state disk?
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Marchello1 said:
are you talking about solid state disk?
Click to expand...
Click to collapse
"SSD" was referring to "solid state disk", yes.
i found one for a 40€, micro sd, 32 gb class 10, its a good price here, im buying it next week
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