I have a Kingston 8gb class 4 card. In my old HTC Hero I was getting reads of 20mb/s and wright up to 10mb/s. Now in my N1 it's much slower. Getting 8mb/s read and 3mb/s wright. I allready formatted but with no result.
What can be the problem?
Maybe buy another micro sd (class 6-10)? any recommendations?
Save your money. The N1 has slow transfer rates no matter what card you use. It seems to be an inherent flaw with the device.
It's because you have many transfer in back ground
No problem
I test my SD after wipe: read 100mg
But before that: read 6mg
Because I has 340 app on SD
Related
Could anybody tell me, why my new SD Card (Panasonic 2 GB Class 6) is much slower on my Alpine than my old SD Card (Panasonic 2 GB Class 2)? Here are the results from the SK Tools benchmark :
Class 2 Card: Read 6187 kb. Write 636 kb.
Class 6 Card: Read 729 kb. Write 481 kb.
Isn't it funny?
Perhaps I should format the SD Card properly?
Any ideas?
Thank you.
are cards empty when you check write speed?
class tells about writing speed on complitely empty cards
I tried both benchmarks, with the empty and the full card. The class 2 is much faster, especially in the write result. Unfortunally I formatted the new card on my device, with the effect that the card was become more slower. After that I formatted the card on my computer, now it's better, but nevertheless slower than the old one.
maybe it's something wrong with the card
the 2nd one is almost 10 times slower readed :/
did you check speeds on PC?
maybe PPC just can't handle with faster card
deezer said:
maybe it's something wrong with the card
the 2nd one is almost 10 times slower readed :/
did you check speeds on PC?
maybe PPC just can't handle with faster card
Click to expand...
Click to collapse
Well, that's my question. Where can I get the adequate information? How can I check the speeds?
use this
http://www.simplisoftware.com/Public/index.php?request=HdTach
Now I've found out that SD/SDHC Memory Card file systems formatted with generic operating system formatting software do not comply with the SD Memory Card specification. You need a special formatting program that complies with the SD Memory Card specification.
Because I have a Panasonic card, I took the Panasonic free SW (
link: http://panasonic.jp/support/global/cs/sd/download/sd_formatter.html).
The benchmark results are: Nearly 14000 KB/s (read), but still 470 KB/s (write) only.
No idea, how to increase the write performance.
Guys,
Got a pretty important question; Yes, I've searched. Don't flame the n00b
Using the N1 as a mass storage device, how fast is the transfer speed?
and
Does the speed/class of the SD card make a difference?
Cheers,
It is ass fast as memory stick. Yes, class of sd card makes all the difference.
I was kind of looking for speed in MB/sec
We all know memory can sticks vary from 1MB/sec to 20MB/sec
Fastest I've seen my transfer speeds are 5 MB/s
This very thing is a problem i am having with my N1. i have a 4gb class 6 card in it and when i mount the N1 to my PC i get transfer speeds of 500k to 1mb asec, but then when i plug the SD card into a USB reader i will get speeds up around 8mb asec. I have USB debugging enabled and it doesn't help. So right now transfer speeds to be blow big time. Not sure why it is doing this or whats wrong.
Any info on this? My phone tops out at around 3 megs. I hooked up a Moto Droid and it was moving stuff at 12 Megs a sec.
Experiencing same sluggishness w/ class 6 card.
I think transfer speeds from N1 to PC are independent of the SDcard when plugged in through the USB cable (unless it's like a class 2).
The actual cable and the N1 restrict speeds as long as you're acessing the SD via USB. You're getting differing speeds when putting it in an adapter because the adapter has different transfer speeds and doesn't need to go through the N1 to transfer.
You're going to be capped when transferring from N1 to pc via USB.
on average with the stock 4GB card when in the N1 I see around 1.5-3mb a sec... When I plug the card directly in a card reader I get 5-8mb a sec. It's much faster for me to turn the phone off, take out the card and stick it in a card reader if I'm transferring any more than a few hundred MB.
Just wanted to bump this, as I'm using an 8 gig card, and froyo 2.2 now. I'm getting consisten 3.5 MB - 4 MB, where as before I couldn't break 2 megs. Not sure what class the card is.
Thread update: I now have a Desire with 16gb Class2
7-8MB/sec Writing.
Reading is even quicker.
Transferring a 800mb file to N1 in mass storage (sandisk class 6 8gb) I got about 2.5mb/s using original htc data cable
Using a card reader i got 11mb/s
hellbringer626 said:
Transferring a 800mb file to N1 in mass storage (sandisk class 6 8gb) I got about 2.5mb/s using original htc data cable
Using a card reader i got 11mb/s
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Click to collapse
How is the card reader connected to the computer? Does it go into a USB port or is it a flash card reader built into a laptop?
Wow. 11MB/s is really fast - are you sure of that number? Sandisks are known generally overachievers, but Class 6 is only rated at 6MB/s write so if that number is right then - wow.
JCopernicus said:
Just wanted to bump this, as I'm using an 8 gig card, and froyo 2.2 now. I'm getting consisten 3.5 MB - 4 MB, where as before I couldn't break 2 megs. Not sure what class the card is.
Click to expand...
Click to collapse
Those sound like the theoretical class 4 speeds.
I have a class 6 16GB card and even with froyo, I can't break the 2MBps rate (Running win7 x64).
Stock froyo/FRF50 or a custom rom based on it?
I just recently got my first Class 6 SDHC 8GB card expecting it to be a lot faster transferring than my stock Class 2 4GB. It's the same. But, when I put my class 6 into a card reader, it writes at 15mbps or higher. Sucks that we have to turn the phone off to remove the SD card.
Here are my test results (on the phone, not mass storage), hope this helps.
SD Card: 16GB RiData Class 6, from newegg.com
Application: J BenchMark 1.0 (market)
Test media: SD Card
Data Size: 10.0 MB
Buffer size: 8KB
Performance over 3 Runs.
Write performance (MB/s): 7.78, 9.29, 11.92
Read performance (MB/s): 12.33, 16.61, 17.39
britoso said:
Here are my test results (on the phone, not mass storage), hope this helps.
SD Card: 16GB RiData Class 6, from newegg.com
Application: J BenchMark 1.0 (market)
Test media: SD Card
Data Size: 10.0 MB
Buffer size: 8KB
Performance over 3 Runs.
Write performance (MB/s): 7.78, 9.29, 11.92
Read performance (MB/s): 12.33, 16.61, 17.39
Click to expand...
Click to collapse
SD Card: 8GB Transcend Class 6, from amazon.com
Same App/Settings
Performance over 3 Runs.
Write performance (MB/s): 4.57, 4.7, 5.81
Read performance (MB/s): 6.37, 6.73, 7.23
Much slower.
does the class of the micro sd matter to the speed of the xperia? right now im using a class 2 and it seems kind of slow.
wildseal2003 said:
does the class of the micro sd matter to the speed of the xperia? right now im using a class 2 and it seems kind of slow.
Click to expand...
Click to collapse
the speed classes [2,4,6] guarantee minimum transfer rates of at least [X]MB/sec
so the speed of X1 itself is not affected but your sd card (why should it, it's got it's own internal memory), but if you have lots of installations on it that the X1 regularly has to access it might have this effect of feeling slow
someone correct me if I'm wrong
my exp showed that the sd interface of win modile can't keep up with the speed of the fastest cards but sdreaders for pc's can
there are benchmark tools like pocketmechanics which let you test the card of the card in the winM device
When I first bought the cards I was getting fast write speeds around 6mbs as advertised. However after partioning it with wp7 and android and getting about 1.3mbs much less than before. The card is only a week old and before I call and ask I wonder if it could be do to the partitioning? Its divided between a 5.2gb android fat32 and a 2.3gb unformatted by wp7.
This is via usb btw, or is this a known problem through usb?
I know it has been asked a lot in the past, but searching didn't provide Milestone specific answer.
So If I buy Class 6 or Class 10, will the milestone be able to utilize the full write speed? I am running Cyanogenmod 7 RC0 (latest). At the moment I have 8GB class 4 Apacer microSD and tbh its a terrible card. All I get is 2.5 mb/s write on large files, but I am getting the same speed when the card is in card reader too so its not phone issue.
Thanks.
Maybe I'm wrong, but what I know is that the card class is the limit. It doesn't mean it will read/write at full speed all the time.
How are you testing your speeds?
Maybe SD Speed Increase help you.
https://play.google.com/store/apps/...t=W251bGwsMSwxLDEsImNvbS5zZGluY3JlYXNlLml0Il0.
I don't know how to test my speeds, but were getting 24mb/s read and 8mb/s write speeds in SD Tools ( https://play.google.com/store/apps/...1bGwsMSwxLDEsImFsZXMudmVsdXNjZWsuc2R0b29scyJd ). I'm using a Samsung 16gb Class2. I think the app is not calculating very well. Don't know.
I am using the SD card as USB mass storage instead of carrying separate thumb drive. I transfer a lot of large 1+ GB files.
I tried SD Speed increase last week and it does make a difference on smaller files, but when copying 2GB files it seems to start fast (like a burst mode), but if timed it takes exactly the same time to write something on the card.
I am going to change my 8GB card for 16GB today anyway I just wondered if class 10 is worth getting or should I get class 6 and save some money. Whatever I buy I will report back and test the speed.
I went ahead and bought Patriot LX 16 GB class 10 microSD. Now I get variable speeds from 3.5 mb/s to 8 mb/s depending on the file sizes. As I read somewhere this is due to fact that the phone is using MTP protocol to act as mass storage device.
Anyway with the old card I was topping only 2.5 mb/s no matter the file size, so it's definitely an upgrade and since class 6 was only 5$ cheaper I saw no reason not to buy the faster one, even if the milestone can't utilize its full capability. In the end its an old phone and I believe there weren't any class 10 cards out in 2009 anyway.
And one more thing, the camcorder isnt lagging anymore when recording videos
EDIT: After booting in recovery and clearing dalvik and cache partition I am getting 9.5 + mb/s, but it does start around 4.5 mb/s and then rises to its full speed. Cheers.
Except for the improvements in video recording, is there anything else that runs smoother for you when using the phone?
maango said:
Except for the improvements in video recording, is there anything else that runs smoother for you when using the phone?
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Click to collapse
I think everytime any app need to access your sd, it will be smoother, like gallery, taking photos, loading maps cached in sd, music apps indexing songs, etc. Accessing apps installed on sd card may be loaded faster too.
extrem0 said:
I think everytime any app need to access your sd, it will be smoother, like gallery, taking photos, loading maps cached in sd, music apps indexing songs, etc. Accessing apps installed on sd card may be loaded faster too.
Click to expand...
Click to collapse
Thats right. Gallery loads faster, applications and games moved to SD start up faster etc. Don't know about maps, but I suppose they cache faster too.
However the main difference is when copying stuff to phone in mass storage mode. Thats why I got a higher class card in first place. While all other stuff related to reading from SD do seem snappier, the difference is not all that great since even Class 2 cards can read with high speed, but when it comes to apps that are writing the difference is obvious.
I'm using a Samsung Essentials 32GB Class 10 Card.
Gave me some troubles at first, something with sector sizes seemed wrong - but after formatting it with this tool https://www.sdcard.org/downloads/formatter_3/ it worked.
Someone in these forums suggested the tools - search for the link to find the recommended settings.
Alright, thx for the answer. For someone not using the phone the same way as you, do you think it would be worth the money to get a faster card?
Sent from my Milestone using XDA
The difference between class 6 and class 10 right now is only few bucks. I don't see why not. You never know, may come in handy.
Here check this out, less then 1$ difference in price.
16GB microSDHC CARD Class 6 - Transcend
16GB microSDHC CARD Class 10 - Transcend
I wouldn't go below class 6 since the camera is lagging when recording videos.
Is it true that if a formatted microSD often will make it slow microSD?
It' unlikely, but possible.
My Samsung Essentials 32GB Class 10 card gave my Milestone hiccups at first (rebooted several times when powering on, rebooted every time I left USB mass storage mode) so I re-formatted it using these instructions: http://forum.xda-developers.com/showpost.php?p=23494134&postcount=7417
Now everything works fine and I still get a little more than 10MB/s when copying movies via USB - so no loss here.