On the G1 what the read speed on the internal sdcard reader because for some reason with compcache it don't make no difference if i use my 8gb class 6 micro sdhc or the standard 2gb class 2 sd. I was thinking maybe G1 phones internal reader dosn't let the class 6 run to full potential so if someone made or know how you can get a benchmark off the phone on whats the read\write speed of the card when inserted into the G1 would be appritiated.
wasuup said:
On the G1 what the read speed on the internal sdcard reader because for some reason with compcache it don't make no difference if i use my 8gb class 6 micro sdhc or the standard 2gb class 2 sd. I was thinking maybe G1 phones internal reader dosn't let the class 6 run to full potential so if someone made or know how you can get a benchmark off the phone on whats the read\write speed of the card when inserted into the G1 would be appritiated.
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Click to collapse
Eh, compcache is compressed-swap-on-ramdisk, how could the speed of the sdcard possibly have any effect on that?
Also, sd card classes don't indicate a MAXIMUM speed, only a MINIMUM speed, so there are class2 cards out there that would qualify as class6. This is particularly notable in cases where the class2 card model was initially manufactured BEFORE the class 4 or 6 standards were defined. There is also a degree of manufacturing tolerance to it. I.e., some units are *just faster* than other.
Related
Hello xda community,
I am new to the forums and I really love the website
I just have a few questions about the android that I tried looking for but to no avail..
1.) I have the default 1gb microsd card on my g1 - if I upgrade that to 16gb sd card, will I notice any speed difference? Piece of sh1t.
2.) Where are text message data stored? In the SD? If so, how can I transfer it over to another SD card?
3.) Is there an Eclair ROM for g1s?
Thanks so much!
1.) It depends on which 16GB card you get. However, you most likely will see a speed increase. FYI, the best bang for your buck right now in terms of cost and speed is the 8GB Class 6 SanDisk Ultra.
By the way, I have measured the stock 1GB SD card and mine came in slightly slower than a Class 4 (@3.5MB/s) 66x (@9.7 MB/s) SDHC card. YMMV.
So, it is possible that you could actually see a speed decrease with a 16GB class 2 card.
What exactly am I looking for if my goal in mind is to increase my g1's speed?
Read/Write mbyte/sec speed?
The Size? (i.e. 8gb, 16gb)
Thanks
I was thinking about getting this:
http://www.frys.com/product/6027788?site=sr:SEARCH:MAIN_RSLT_PG
Sorry, every instance of the word SDHC actually means microSDHC. I thought that it was obvious, however, I really shouldn't assume. That link you gave is the wrong card. That card will not fit into your phone.
This is the one that I have:
http://www.cell-phone-accessories.com/pol-312824-tsc.html
If you really want a 16GB card, either get this:
AData - http://www.newegg.com/Product/Product.aspx?Item=N82E16820211378
or this:
Transcend - http://www.newegg.com/Product/Product.aspx?Item=N82E16820208481
or this: (although I have no experience with this one)
OCZ - http://www.newegg.com/Product/Product.aspx?Item=N82E16820227489
Thanks a lot for your advice. I ended up by an Adata c6 8gb microsd card for $27 at Fry's.
2.) Where are text message data stored? In the SD? If so, how can I transfer it over to another SD card?
I would also like to know
3.) Is there an Eclair ROM for g1s?
Yes, but not everything is working
I am waiting for one where everything works...
I ordered a class 6 16gb card to replace the slow-ass class 2 8GB card I had in my HD2.
First of all I couldnt find the format sd tool in my energy rom (1st July) so I had to format the card using vista while the HD2 was connected in disk drive mode. THAT TOOK OVER 1 HOUR.
(Is there a cab file to install the "Format SD Card" tool for the newer energyroms?)
Anyways after formatting (Fat 32, 16KB cluster), I started to copy my 1.4GB sd backup file to the card using the same method as above (disk drive mode)....
My maximum write speed was 2.7MB/sec. Average 2MB/sec.
Class 2 speeds????
After restoring the backup, which took forever, I ran spb benchmark on the card and was gutted to get slightly lower results than the old class 2 I was replacing.
Can the HD2 make use of anything faster than a class 2 card?
Has anyone here tested a class 6 or even 4 card and found good write speeds (~6MB/sec, or ~4MB/sec)?
Does it sound like I have bought a lemon (class 2 labelled as class 6)?
I have spoken to the seller and he is adamant that they ARE genuine class 6. Reckons he tested some of the batch in TrueHD cameras which will not accept <Class6. Seems genuine and some of his feedback states that the cards are Genuine class 6. Which leads me to think that the bottleneck could be the HD2... Does that sound likely?
I'm waiting for a microsd USB reader to arrive so I can test the card outside of the HD2, but Until I can do that... can anyone tell me if a class 6 is wasted in a HD2?
The strange thing is that when browsing photos/wallpapers etc, the thumbnails ARE loading maybe 3x quicker than my old class 2. So I'm pretty confused about this one.
Can anyone shed any light here? Feel free to post benchmark results/screenshots etc.
Thanks in advance.
can anyone PLEASE answer this ^^^?
Is there any point having a class 6 card in the HD2 instead of a class 2 or 4 card?
there is a thread in the accessories section have a gander in there, I no this is Q&A's but lots of talk about mem cards in the accessories section mate
Cheers mate, I'll take a look.
I will move this thread there. I also recently bought a Class 6 card and and have seen a huge improvement in media reading and over all performence.
I get 4-5MB/s both for reads writes with my 16GB class 6 card in disk drive mode.
Thanks zelendel and kilrah.
kilrah said:
I get 4-5MB/s both for reads writes with my 16GB class 6 card in disk drive mode.
Click to expand...
Click to collapse
That is exactly the kind of data I'm looking to compare.
Whith my 'class 6' Im getting just under 3MB/S WRITE and under 6MB/S READ when using the HD2 in disk drive mode.
If I use the card in a USB 2.0 reader I can get around 5.5MB/S Write and ~11-13MB/S read.
Based on this alone would you say my card is a class 6 or not. I'm beginning to think it may be a class 4 re-labelled.
Picture browsing etc is faster with my class 6 but all benchmarks indicate it is identical speed to my genuine Kingston Class 2.
What do you guys reckon, Should I send this card back for a refund???
Well if you're getting 5.5 and over 11MB per second with a card reader then we can safely assume it's class 6. The bottleneck is something to do with the phone, rom, cable or simply the phone doesn't like this particular card etc...
EDIT: Test your class 2 card with the memory card reader and see if you get similar results.
ez2remember said:
Well if you're getting 5.5 and over 11MB per second with a card reader then we can safely assume it's class 6. The bottleneck is something to do with the phone, rom, cable or simply the phone doesn't like this particular card etc...
EDIT: Test your class 2 card with the memory card reader and see if you get similar results.
Click to expand...
Click to collapse
Thank you for helping me clear things up.
Comparing the 'class 6' and the 'class 2' transfer speeds is where I really get confused here.
Transferring a ~700MB .Avi to and from SD using a reader:
Kingston Class 2 8GB:
Read 12.5MB/s
Write 5.4MB/s
Unbranded Class 6 16GB:
Read 12.5MB/s
Write 6MB/s
So, from this, would you say its safe to assume:
1. The class 2 card is a good one, performing at almost class 6 speeds.
2. The class 6 card is 'Genuine' and shouldnt be returned.
3. There is a bottleneck when using the HD2 as a card reader/disk drive. I should be getting more than 2.5mb/s write speeds in this mode.
4? Does 12.5MB/sec sound close to USB 1.1 speeds? could my reader or even USB port (Vista laptop) be another bottleneck?
Once again thank you for helping me make sense of all this.
At least I now know that the 16gb card doesnt really need to be returned.
Can you give me your oppinions on the above?
Well class 2 means you should be getting a minimum 2MB/s speeds and class 6 means you should be getting a minimum 6MB/s.
Seems like you have a very good class 2 card.
More info here
http://en.wikipedia.org/wiki/Secure_Digital
Your class 6 is performing to spec.
Personally I would never buy an unbranded card but that's me. A branded card may perform better than there class rating e.g. Your Kingston brand I've always used Sandisk personally...
I've just managed to drum up enough funds to get myself a HD2 and now looking to upgrade my HCSD card to 16GB. To get the "right" class I tried to find the spec on the SD interface but I cannot find anything and the best data I can find is that I shouldn't waste my money on unbranded devices, I would always buy a SANDISK device for something I relied on! For data and communication!
People seem to get appropriate speeds for the class of device they have, if they are branded and sometimes if unbranded. However, there doesn't seem to be anything better than class 6 results debated or given. Is it a VERY rash assumption that the fastest the HD2 interface can go is Class 6?
Chris
Does this mean its not worth getting 32gb cos its a class2
& theat would make the phone slower cos lot more stuff on it
& will take more loading time & play Videos lagy ?
anyone useing 32gb ?
Thanks
My experience was positive with higher class micro SD.
At first, I used 8GB micro SD bundled with my HD2 and didn't notice improved loading speed. Later, I changed it with higher class one, same 8GB, with same manufacturer, Sandisk. Higher class one has name "Ultra" on it. Now with changed SD, loading became WAY faster. "Wow" I realized the higher speed of CPU of HD2.
My 2 pennies.
NEVER EVER buy unbranded memory cards!
Keep an eye on Sandisk cards only and even prefer them to Transcend and Kingston.
Hi al,
Does anyone know whether the Samsung Galaxy S (I9000) would actually profit from a Class 10 microSD? Can it utilize the read/write speed of these microSD's?
If not, what is the max. class which the Galaxy S would actually use to its fullest?
Greetings,
Evert
of course it will
this is one of the fatest phone ever
if you have an External class 4 vs another External class 6 card inside this phone then you copy stuff with Astro File inside the phone you'll notice the difference in speed
and then if you compare the class 6 vs a class 10 external you'll see even more difference
this will be very important when Froyo comes out and we can finally use App2SD, as the apps will write and load faster to & from the SD on a class 10 than a class 6 or 4
don't even bother with a class 2 it'll be painful slow
and that comes by experience running apps on SD on all my previous phones
AllGamer said:
of course it will
this is one of the fatest phone ever
if you have an External class 4 vs another External class 6 card inside this phone then you copy stuff with Astro File inside the phone you'll notice the difference in speed
and then if you compare the class 6 vs a class 10 external you'll see even more difference
this will be very important when Froyo comes out and we can finally use App2SD, as the apps will write and load faster to & from the SD on a class 10 than a class 6 or 4
don't even bother with a class 2 it'll be painful slow
and that comes by experience running apps on SD on all my previous phones
Click to expand...
Click to collapse
What?
Are you basing this on a test, or are you just assuming that the class 10 microSD is theoretically faster then class 6 ?
Biased on that tech specification your making an assumption that we should get this class 10?
The question is weather or not the SGS Vibrant Bus and Data lines can transfer speeds of 80Mbits/s through the MicroSD card slot??
* Class 2: 16 Mbit/s (2 MB/s)
* Class 4: 32 Mbit/s (4 MB/s)
* Class 6: 48 Mbit/s (6 MB/s)
* Class 10: 80 Mbit/s (10 MB/s)
I would say lets buy them and test it out.
I just had 6MBs towards my internal and 5MBs towards my external sd card at the same time trough the usb connector while the sd is a class 2 =p
The sgs would stil benefit from a class 10 i bet
I have just placed an order for a Kingston SDC10/16GB.
What would be an accurate way to measure read/write speed once this card is in my phone? Simply hook it up to PC and pump a large file to it, and see what the speed/bandwidth is?
when performing test, you will always get the fastest speed when the disk is new (empty)
so the proper way to test for performance speed, is to fill the SD card 50% with random files or random sizes, then do a speed test
that will show the true performance of the sd card
you can try these 3
http://www.appbrain.com/app/sdcardbenchmark/com.p8h.sdcardbenchmark
http://www.appbrain.com/app/sd-card-speed-tester/br.com.fast4ward.sdcardspeedtester
http://www.appbrain.com/app/disk-benchmark-free/com.j.diskbenchmark
Very interested in the results myself! Please do let us know how it goes evert!
Any results ?
I'll check them out. Problem is that most seem to test /sdcard, which is the internal SD, and not [correct folder for external SD]...
i also just wondering if class 10 would make any different in data transfer as rite now i'm using class between class 2 and class 6 for 3 of my 5300 (2) i9000 (4) and n7000 (6)..
any result on the test that you have made? thanks!
I use a transcend 16gb class 10 micro sd and i get a write speed of around 14mbps... on other cards i get 5 or 6mbps...
vigneshnallamad said:
I use a transcend 16gb class 10 micro sd and i get a write speed of around 14mbps... on other cards i get 5 or 6mbps...
Click to expand...
Click to collapse
Thanks for the info! Sure feel more confident to get one of these!! Thanks again (and yes i've click the thanks button!) Hehe!!
Regards!
For what it's worth, my speeds are as follows:
Internal: 7mb/s write and 15mb/s read
External: 15mb/s write and 30mb/s read
External is a Transcend class 10 16gb card, almost full and 1yo
Very happy with it
Sent from my GT-I9000 using xda premium
Hello
I got my Legend about 2 months ago, and I have a big problem with storage space...
What is the biggest sized SD card the Legend can use?
What is the type of SD card (micro, mini, etc...)
What is SD card class?
Thank you very much
microSD compliant with SD2.0 Standard (aka microSDHC)
The biggest size available currently is 32GB.
I don't know if even more is possible with microSDHC or if bigger cards will only be possible with SD3.0 (aka SDXC) but that question is not relevant as you can't buy any greater then 32GB yet.
The Class of the SDCard is a measurement for guaranteed minimum speed in random read/write.
The Class does not provide any information about real-world speed or max speed.
For your mobile phone the class is a pretty useless criterion as you don't need any guaranteed minimum speeds but good overall speeds ESPECIALLY sequential.
The guaranteed minimum speed is important for HD Video Cameras for example where you write data all the time at a given speed (resolution).
thanks.
but I DO need class with high speed because I want to use Data2Ext...
Don't pick uSD card based on class !! class tels you MB/s for sequential write only... you need a card that is overall fast, I had 16GB class 10 Kingston and data2ext was just horrible!
Now I'm with class 4 Sandisk mobile ultra and it is in fact faster in every test I ran...
So read reviews before you buy
ye but that is exactly why im asking...
well then, I recommend sandisk mobile ultra as I have it and it is OK, there are probably faster cards...just see the small files read / write speeds in reviews those are of greatest importance
i purchased a kingston 8GB class 4 which crapped out. android kept reported sdcard unexpectedly removed. tried all sorts (formatting in windows, android, quick, long, etc).
RMA replacement did exactly the same, so i'm guessing kingston class 4's are best avoided.
If I recall correctly I have a 16GB microSDHC Class 4 card. After applying data2ext with this card, my Quadrant scores hit around 1500, which is crazy.
This is where I found my card: http://www.amazon.co.uk/SanDisk-16G...P06K/ref=sr_1_1?ie=UTF8&qid=1298984123&sr=8-1
I personally recommend this card.
witch is better class 4 or class 6?
r69001 said:
Hello
I got my Legend about 2 months ago, and I have a big problem with storage space...
What is the biggest sized SD card the Legend can use?
What is the type of SD card (micro, mini, etc...)
What is SD card class?
Thank you very much
Click to expand...
Click to collapse
Did you by any chance go to HTC's website to read about the phone? It has the full specs listed..
Sent from my Legend using XDA App
dangal said:
witch is better class 4 or class 6?
Click to expand...
Click to collapse
class 6 is better , but class 10 is even better
I've got a Sandisk Ultra Mobile 16gb SDHC which works fine in the Legend. Make sure you format it with the phone to stop it being dismounted, well known issue and the fix
Could we get a sticky thread where people can post what Micro SDCard they are using and how well it works? It would seem really useful to see which cards work well with the Nook Color and which ones to avoid.
Posts should have: Manufacturer, Capacity, Class, and Model. In addition, list what you have run from it and how it performed.
I'll start off. I currently am using a Toshiba 8GB Class 4 Micro SDHC Card, Model C08G. NookieFroyo will run from it but it is slow and makes for a very laggy experience.
I ran Froyo on a regular 2GB microSD, not sdhc, and it was smooth. I don't know why ppl think having higher class microSD will make Froyo run smoother. If you have lag, turn the screen off and on again might fix it. Another thing is that if you have a lot of startup apps on boot will slow your NC.
Sent from my NC using Tapatalk
succulent said:
I ran Froyo on a regular 2GB microSD, not sdhc, and it was smooth. I don't know why ppl think having higher class microSD will make Froyo run smoother. If you have lag, turn the screen off and on again might fix it. Another thing is that if you have a lot of startup apps on boot will slow your NC.
Sent from my NC using Tapatalk
Click to expand...
Click to collapse
Could you post what card you used, preferably the specific model? That card could be anything, from class 2 to class 6.
SDHC doesn't mean it's high speed, SDHC means "Secure Digital High Capacity". Standard SDCards are up to 2GB (some may be listed at 4GB, but alot of readers have problems with those as the block size is larger then 512 bytes). Anything larger is classified at SDHC
Class is the speed that the card should Read/Write at. A class 2 card should write at a minimum of 2MB's per second (read speeds are typically higher), a class 10 card should write at a minimum of 10MB's per second.
A higher class card should perform better then a lower class. However not all cards are the same, and card readers vary, which is why I'd like to see this a sticky.
I agree!
I am a newbie/nookie and am wanting to know what micro sd card to purchase to root my nook color. i will be so grateful if anyone posts here about the one they used to effectively root their nook color...
thanks
Well I can't post links yet
Item # N82E16820208453 on Newegg
The transcend seems to be a favorite for it's speed.