The title is self-explanatory, just wondering whether larger memory cards will significantly affect the battery life of the device...
Anyone's input is much appreciated.
leo-chan said:
The title is self-explanatory, just wondering whether larger memory cards will significantly affect the battery life of the device...
Anyone's input is much appreciated.
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Click to collapse
I am a little new to the PPC world. But technically that depends on hardware. If the memory requires a static charge to keep the information in memory then technically it would possibly drain the battery more. But from what I know MicroSD cards that I use do not require static charge to maintain memory conditions.!! -New Guy
i belive you are correct
Nope, no difference as SD cards are flash cards, only reading/writing will use the juice....
Mind you if you get a 4Gb or greater card and shove MP3s and videos on it, you WILL use it more, so the answer is yes..... YMMMV...
tedbacc said:
Nope, no difference as SD cards are flash cards, only reading/writing will use the juice....
Mind you if you get a 4Gb or greater card and shove MP3s and videos on it, you WILL use it more, so the answer is yes..... YMMMV...
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So in response the conditions that will drain the battery more would be if he/she was reading/writing. or Using the card allot. Size in the SD card world shouldn't matter
It would be the amount of reading and writing and the size of the content being written and read from the card.
Related
I know a lot of people are still running SD builds and have not jumped on the NAND wagon<since it 's still not 100% stable.
Since the OS is running off the SD card, the card transfer has to be constant right?
So, is the life span of the card drastically reduced? If so, by how much?
samson_420 said:
I know a lot of people are still running SD builds and have not jumped on the NAND wagon<since it 's still not 100% stable.
Since the OS is running off the SD card, the card transfer has to be constant right?
So, is the life span of the card drastically reduced? If so, by how much?
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OOOOHHHH thats a hard one.
Check this thread and decipher what you can.
http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/archv016.cgi?read=92882
http://blogs.msdn.com/b/tomarcher/archive/2006/06/02/615199.aspx
thumbdrive (same technology - solid state memory) use for readyboost (constantly read/write as in RAM) will wear out after 10 years. that is, if you not using some "china" (not made in china -- "china") brand.
that is why they give lifetime warranty. by the time it worn out, nobody will want it if you put it on ebay.
this depends on many factors. mlc nand flash as used in all usb drives or memory cards has a limited number of erase/write cycles per cell.
typically this is about 100k now but can be as low as 10k writes
all flash has wear levelling and spare blocks the media can use to help stop cards going bad
read has no effect on wear
as phones dont spend their life writing data to the card they should last many years, but as with all tech, make sure you have a backup!
cheap unbranded cards from the far east should be avoided as they are built cheaper, will have less spare blocks and less sophisticated wear levelling
This is an interesting thread.
I use alot of apps, so even though I use NAND I have had to put data on the SD card.
After lots of corruptions and reformatting I resigned myself to getting a new SD card. Then used the Panasonic formatter to refresh the card.
However, yesterday my phone completely crashed and wouldnt make calls or run anything from the SD giving force closes etc.
Last night I flashed to MDJ Gingerbread on NAND without SD data so that my phone would work ( I guess this is the disadvantage of removing WinMo!)
So I think there is definately something in the lifespan of the SD card.
GG
Hey i installed a custom rom, ewjet 008ex to be exact, it has an app called swapper configuration, at the moment its not active, ive never used it bfore but it seems to work very similarly to readyboost feature u find on windows. ive also heard that this can reduce the life of the SD card because the amount of read and write requests. has anybody used this feature and has it helped in anyway such as performance and memory usage, ny help would be greatful. thanks in advance
i've used it on CM roms on my G1 and it worked great.
i tried it on ewV008ex rom and i had some problems. i have an 8gb class 4 card, so that may have contributed to it, however, with 256mb swap, i would have a song skip every now and then, i had a few random reboots and bluetooth connectivity problems (not sure how that had anything to do with swap, but it started when i started swap and stopped after i removed it). and after about a day, i ended up with a damaged sd card (which ended up being a corrupt file somewhere on the SD card, a format fixed it). there was little improvement noticed, again, with a class 4 card. i really didn't test any other swap size because of how short of a time i used it. but i would assume with a class 6+ card, 128mb swap size on an ext partition on the sd card, and it would be a lot more benficial. too big will actually slow swap down, too small and it may not be adequate enough for your application.
there is no universal magical number that you can use with swap, the settings will depend on your sd card class, apps you are using, etc. typical swap settings are 64mb, 128mb, 192mb and 256mb, or atleast they were on the G1's a few years back. try a few different settings and see how it works for you.
Thanks for the reply mate, hmm in 2 minds buh i might give it a go, i have a class 10 16gb microsd card, so id have to create an ext partition i take it?
you don't have to, swapper can write the swap file to FAT
I apologize to all and sundry for being a noob, but must it seems post this here.
I have been testing GBX0C with the above phone on the 2degrees in New Zealand (GSM). I have found that the following odd behavior:
Adata 16GB class 10 & GBX0C = aprox 5 hours standby
Adata 8GB Class 6 & GBX0C = still going after 8 hours standby
Adata 16GB Class 10 & FRX07.1 = still going after 8 hours standby
To me this indicates some incompatibility between GBX0C and the 16GB SD.
Will logs be helpful to any one in this regard?
Other wise this is fully usable. Thanks to all those involved.
Battery usage is so random. Hardly anyone actually conducts a 'good' battery drain test - because usage patterns vary day to day.
Regardless, if your lower class smaller card gets better battery life - use it. Honestly the size of the card is probably meaningless, the class is more important here. I and many others have told people to stay away from higher class cards when using HaRET - there's no benefit, and you could potentially ruin the card. So why destroy a new fast card when an old slow one would probably work better?
Class measures raw speed, for sequential read writes. Operating systems use a lot of random read/writes, so you want a card that is best at that. In all my heads up tests of my cards, my 'classless' 2gb Sandisk card was the best.
arrrghhh said:
Regardless, if your lower class smaller card gets better battery life - use it. Honestly the size of the card is probably meaningless, the class is more important here. I and many others have told people to stay away from higher class cards when using HaRET - there's no benefit, and you could potentially ruin the card. So why destroy a new fast card when an old slow one would probably work better?
Class measures raw speed, for sequential read writes. Operating systems use a lot of random read/writes, so you want a card that is best at that. In all my heads up tests of my cards, my 'classless' 2gb Sandisk card was the best.
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Yes. I did read that thread, very enlightening. Just thought it was interesting that FRX07.1 did not seem to have the same problem with this particular SD.
Thanks.
kzin42 said:
Yes. I did read that thread, very enlightening. Just thought it was interesting that FRX07.1 did not seem to have the same problem with this particular SD.
Thanks.
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Run FRX then? Not sure what you want me to tell you... You're comparing apples & oranges there as the kernels are different, and obviously userland is different as well.
There are several kernels for GBX0C. Perhaps you could try all of them, and see if one works better for you.
wizardknight said:
There are several kernels for GBX0C. Perhaps you could try all of them, and see if one works better for you.
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Hi, thanks I tried 3.3.8 and the same thing.
I have spent some time testing different cards, I got a 16GB sandisk class 4 (was the lowest class 16GB I could find on Trademe.co.nz) it also uses battery fast but is better than the ADATA. I have noticed some other odd behavior:
I have Identical copies of GBX0C on the 2 16gb and the 8GB SDs. I have been booting each in turn and comparing.
They each have a media folder with my custom Notifications & ringtones folders in them, at the Root of the SD. but the system will not show these on the 16GB cards, also "handsent" gives me an error when I try to set music as a notification "no music files or SD card not present" there is plenty on there.
The 8GB card has none of these issues. but it is alot slower.
I know I could just get an 8GB sandisk and it would probably help. and I know I can copy the media folder to the system folder.
I have attached logs for the 2 different sized cards they do seem very different.
kzin42 said:
I have spent some time testing different cards, I got a 16GB sandisk class 4 (was the lowest class 16GB I could find on Trademe.co.nz) it also uses battery fast but is better than the ADATA. I have noticed some other odd behavior:
I have Identical copies of GBX0C on the 2 16gb and the 8GB SDs. I have been booting each in turn and comparing.
They each have a media folder with my custom Notifications & ringtones folders in them, at the Root of the SD. but the system will not show these on the 16GB cards, also "handsent" gives me an error when I try to set music as a notification "no music files or SD card not present" there is plenty on there.
The 8GB card has none of these issues. but it is alot slower.
I know I could just get an 8GB sandisk and it would probably help. and I know I can copy the media folder to the system folder.
I have attached logs for the 2 different sized cards they do seem very different.
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Have you formatted them to fat32? Have you formatted them with the HP tool? Can you see any data, or are you just missing the music? Do they work fine in other phones/computers?
wizardknight said:
Have you formatted them to fat32? Have you formatted them with the HP tool? Can you see any data
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Yes, yes & yes. These were some of the first things I tried to fix it.
wizardknight said:
, or are you just missing the music?
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The music can be accessed by "Folder Player", and you can see them in "Astro" it only appears to be in relation to "Handsent" so far as I can see and the "Music" app I have just noticed, lists no songs. it is very odd.
wizardknight said:
Do they work fine in other phones/computers?
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Yes, very well in fact. I don't have another phone to test them with, just my PC.
I'm still running a sandisk 32 gig class 4 card. While getting ready for ICS I backed up everything, including copying the card to my PC. I noticed how much stuff is on it from apps and such, that it makes me question....
Does the microSD card speed have any impact on how the bolt performs? Will it be faster or have less lag with one of those newer Sandisk UHS cards?
The only benefit you will see is faster read write speeds to the SD card. You would probably have to increase the read ahead buffer to get the full benefits.
Sent from my ADR6400L using Tapatalk 2
disconnecktie said:
The only benefit you will see is faster read write speeds to the SD card. You would probably have to increase the read ahead buffer to get the full benefits.
Sent from my ADR6400L using Tapatalk 2
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And that is part of my question.
I guess my thought process is... With the newer card having faster read/write speeds, I would think that any access the phone does of data/apps stored on the car might be faster. And with all the .Android_secure, android and other files/folders the bolt stores on the card (as opposed to internal memory), that isn't pictures or ring tones, I was wondering if it could make a noticeable impact on the performance of the phone or installed apps.
Has any one tried? Is there a way to measure or verify any improvements? I guess I'm looking for reassurance it will make a worth while difference before I go an spend money on another card.
As for the read ahead buffer, is that something that is easy to modify? how would that be done?
It in theory would make viewing pictures and stuff on the sd card faster. As for apps I'm not real sure. You can download apps like Rom toolbox that let you change the read ahead buffer but I think the thunderbolt maxes out at 4096. Anything faster will just default to that speed. To test it use one of the benchmark apps like antutu.
Sent from my ADR6400L using Tapatalk 2
Hello everyone,
I have a question about how using swap file (or partition) affects my sdcard life.
I came across this thread
http://forum.xda-developers.com/showthread.php?t=1659231
and there was a quote
WARNING: This mod may degrade SD card life.
Click to expand...
Click to collapse
Why is that?why using swap affects negatively on sdcard life?
I have an 8GB class 10 card,should I use swap with my x10 mini?
Does anybody know and answer me?
harris_greece said:
Hello everyone,
I have a question about how using swap file (or partition) affects my sdcard life.
I came across this thread
http://forum.xda-developers.com/showthread.php?t=1659231
and there was a quote
Why is that?why using swap affects negatively on sdcard life?
I have an 8GB class 10 card,should I use swap with my x10 mini?
Does anybody know and answer me?
Click to expand...
Click to collapse
Swap basically uses an ext-partition on your sdcard as extra RAM. Sdcards are made for occasionally(more or less) writing new data to them, whereas RAM basically gets rewritten all the time (like, deleting and recopying a file several hundred times a day). This means that the partition you use to swap will be put under much more strain than any other part of your sdcard, will "pack up" more quickly and therefor also decreases the total life of your sdcard.
Kilroy. said:
Swap basically uses an ext-partition on your sdcard as extra RAM. Sdcards are made for occasionally(more or less) writing new data to them, whereas RAM basically gets rewritten all the time (like, deleting and recopying a file several hundred times a day). This means that the partition you use to swap will be put under much more strain than any other part of your sdcard, will "pack up" more quickly and therefor also decreases the total life of your sdcard.
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Click to collapse
Got it.That is exactly what I though anyway.I use swap to file but I guess the idea is the same.Thanks for the answer.
Do we have an estimate about how much is the card life affected?Like greately decreased?
harris_greece said:
Do we have an estimate about how much is the card life affected?Like greately decreased?
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Click to collapse
no, it depends on each card specific wear resistance (i killed 2 cards in 3 years )