Hi experts I was hoping somebody here could throw some clues my way.
I have a 32A Rogers magic. (rogers HOFO )
I usb mounted the drive, and transferred a movie on there just for fun, and it was really SLOOOOOW , using the 2 gig sandisk microsd card it came with
So I tested the transfer rate, and write was about 3 meg/second. ouch
reads are about 5 meg/second (!)
SO I got an 8 gig type 6 card to solve this problem. I tested it first with a usb card reader, it reads at 16 - 17 meg/second (same usb port)
Put it in the Magic, and I'm back to 3 / 5 again, with the new card too.
The specs say "USB 2.0" - yet this is unbelievably crappy usb transfer rates :-(
I tried my buddy's Dream, it's exactly the same too. 3 / 5
Why? Any clues? Is there something to tweak?
are you using the usb cable that came with it or your own one?
either way, have you tried a different cable?
yes, tried that. And with a whole other phone, computer, and cable ;-)
I just tried it again though, it's the exact same, 3 MB/s write, 5.7 MB/s read on the HTC cable, and the normal one I use.
Why, is yours faster?
Could you use a stopwatch (like www.online-stopwatch.com),
and copy around a 100 or 150 meg .ZIP file to it, and tell me how many seconds it took?
i just transferred a 550mb video clip from my laptop to my phone and it took 1m 28s.
my laptop isn't particularly fast either, so will have had some affect.
Thanks
That's about 6MB/s (550/88), that's better for writes than mine, close to double...
How long does it take to get it back, reading?
59 seconds.
but don't forget my laptop sucks so that time will be a bit high.
9.3 MB/sec still kicks mine. Thanks for checking that out.
This one reads really fast on a card reader, over 16MB/s
I guess it doesn't like Android phones. :-( I don't get it.
What brand / class is your card? Mine's transcend 8GB type 6
mine is the same.
at least, i think it's transcend.
it's certainly 8gb class 6 anyway.
just a thought...
what rom are you using?
the default or a modified one?
The HOFO roms
I've got it up to 8 to 9 MB/s writes, and 6- 7 MB/s reads now
That's exact opposite to yours, lol.
Related
Happy new year guys. I bought two microsd cards. One is a PQI 2GB microSD card for flashing. Another one is a Ridata 4GB microSDHC card for everyday stuff, with a speed class of 6. I don't know the class of the PQI.
I noticed that when copying files from the pc, or when just copy pasting files within the Hermes, the writing speed is very slow. For both cards, the PQI and Ritek, they're around 400 kB/s to 600 kB/s. I used both WM5torage and activesync and they're both this slow. Even for a class 2 card, such speeds are slow. I RMAed the PQI one due to CRC errors when copying. The Ridata has no errors but is still very slow.
I searched the forums and installed the SD tuneup.cab file, restarted the Hermes and its still the same writing speed, around 400kB/s. I used the microsdhc in a card reader in a pc and it writes at 6 MB/s. What could be wrong, why such a writing speed difference? I have red about posters with writing speeds as much as 9MB/s with their phones in the Hermes accessories forum.
The specs of my phone are:
Cingular 8525 Hermes 100
PDACornerPro.V27
Radio 1.56
HardSPL v7
Ridata 4GB microsdhc class 6
Any suggestions, comments? Thanks.
Mate, join the club... I don't really believe that when connected through activesync you will get very fast speed copying. Its ALWAYS been slow as a stoned snail when copying through the phone. sd card readers move like lightening in comparison.
Don't believe you're gonna find an answer to the slow speed problem.
Cheers...
You mean from the very start till now, the Hermes really writes slowly? But some people on the Hermes accessories forum have write speeds up to 9MB/s. Maybe there is a fix/tweak somewhere I don't know about and still not able to find through searching? Any ideas? Thanks.
I've never found it. Most threads I've read about this issue are lamenting the fact it has such a slow read/write speed when connected through activesync.
I generally backup and transfer files through an sd card reader.
Cheers...
Thanks for the reply. Maybe I'll just use a card reader to save time. But those folks at "What brand SDHC card is everyone using?" thread have speeds up to 9MB/s when writing. Aren't they using the Hermes? Or they're using a card reader?
Probably a card reader. They may also be talking about when transfering files to/from sd card when using the Hermes's own file manager as that is fairly fast. I use a class 6 8Gb card for reading Tomtom maps and there is no lag, had a bit previously with a 2Gb card.
I believe the hangup is in microsoft's active sync program. No0t sure about those using vista's own transfer app.
Cheers...
ultramag69 said:
Mate, join the club... I don't really believe that when connected through activesync you will get very fast speed copying. ...
Click to expand...
Click to collapse
Actually, Activesync can be fast.
Activesync on an XP machine copying to my Herm100 is quite slow, a card reader is much better, but the same Activesync copied to the latest HTC (don't know the model) slidey keyboard phone's internal memory in comparatively lightening speed.
So is there different configurations or drivers for the USB connections on our phones and/or ROMS ?
G.
As you said
Ogier said:
Activesync copied to the latest HTC (don't know the model) slidey keyboard phone's internal memory in comparatively lightening speed.
G.
Click to expand...
Click to collapse
Maybe something in the hardware of the newer phones because if it was software, since the chefs use the ported os of the later devices, we should also be getting better speeds if we had updated the OS. I'm currently using build 21109 and I haven't noticed a speed increases...
Thanks for the replies guys. I think its really the hardware of the Hermes that is slow. I bought a cheap $1 card reader and its very fast compared to the Hermes' own card reader. I used Sisoftware sandra to bench my cards. My RMAed 2GB PQI card writes at around 6.5 MB/s while my Ridata 4GB card writes at around 5.4 MB/s. What a difference a dollar makes
Hi.
There's one question which has not been asked yet (I think) and that's about USB Speed.
When I connect my HTC Touch Cruise to the PC and start a file transfer I get speeds around 250kb/s. What about the new Leo? Is there any improvement?
when syncing mp3s with wmp I get around 2-3MB/s but I haven't tried large files yet. using the included 2gb card of course!
With an A-Data MicroSDHC 8GB class 6, transferring a 680MB file I'm at full speed.
I mean that I'm getting 5-6MB/s!
The transfer speed of the HD2 is a joke when compared to the USB 2.0 specs and the extremely low transfer speeds does not have anything to do with the cards used.
There is a big difference in the speed of ANY card when used with hd2 compared to a card reader. And the truly limiting factor is only the hd2.
When i'm in "disk drive" (not activesync) mode the write transfer speed to the sd card is only about 1.8 MB/s which i think extremely slow. The read speed is only ~3.5 MB/s.
I've tried that with 2 different cards, both 2 GB sandisk.
When i plug them into my PC or notebook using an USB-adapter i have the write speed ~5.5 - 6 MB/s and read is ~ 8-9 MB/s.
Click to expand...
Click to collapse
So the speed is about 3x higher in any card reader.
Take alook at the following thread:
http://forum.xda-developers.com/showthread.php?t=628582&highlight=usb+speed
nicky-xda said:
The transfer speed of the HD2 is a joke when compared to the USB 2.0 specs
Click to expand...
Click to collapse
Don't forget this is going through activesync, which is a protocol that really isn't meant for large file transfers. And that previous phones were only doing a couple hundred kB/s.
Use Disk drive mode when transferring big files. Hits 5MB/s.
@kilrah:
please read my posting above:
When i'm in "disk drive" (not activesync) mode the write transfer speed to the sd card is only about 1.8 MB/s which i think extremely slow. The read speed is only ~3.5 MB/s.
Click to expand...
Click to collapse
OK then, but in that case you're off-topic as the thread was about activesync
Anyway, I can't duplicate that. In disk drive mode I have 4.5MB/s writes and 6.5MB/s reads, similar to what someone else mentioned earlier. With a 8GB class 6 Sandisk card.
kilrah said:
OK then, but in that case you're off-topic as the thread was about activesync
Anyway, I can't duplicate that. In disk drive mode I have 4.5MB/s writes and 6.5MB/s reads, similar to what someone else mentioned earlier. With a 8GB class 6 Sandisk card.
Click to expand...
Click to collapse
Yup, same here; I got fast speeds when not in Activesync and applied tweaks to my Win 7.
It is also notable that unless tweaked, Win Vista and Win 7 copy files poorly (even between 2 different physical hard drives!) so compounded with Activesync, Windows may be contributory factor to the OP's problem.
can anyone let me know if the rom used in the hd effect the speed of the transfer of files when the hd is connected to the pc as mass storage
since i got my replacement phone a few weeks back the sd transfer speed has been sketchy. im getting speeds of 32 kbs and im wondering what the cause is
windows 7 rc
the phone (hardware)
the phone (software)
the cable (my htc cable split so im using others)
the card (sandisk 16gb class 2)
so ive ruled out windows 7 rc as the slow transfer speed in consistant with xp pro home and a retail windows 7
at first i did think is was the cable but ive used a good few to try and see if this is the problem. the pattern of slow transfers run throughout the wires i have
i have tried another card in my phone and i got the same result
this leaves me with two possibilites
the phone hardware (oh and it hs newton rings) is screwed and i need a replacement
or
the phones rom is conflicting with the transfer somehow
can anyone tell me if theyve experienced drastic changes in the transfer speed depending on the rom used
Hi
Since i had a replacement from Orange a few weeks ago everything has been - well faster and without problems - and that is with the stock Rom. Loaded all my old apps and have no complaints. Will measure my transfer speed and let you know.
r
Andrew
-PiLoT- said:
can anyone let me know if the rom used in the hd effect the speed of the transfer of files when the hd is connected to the pc as mass storage
since i got my replacement phone a few weeks back the sd transfer speed has been sketchy. im getting speeds of 32 kbs and im wondering what the cause is
windows 7 rc
the phone (hardware)
the phone (software)
the cable (my htc cable split so im using others)
the card (sandisk 16gb class 2)
so ive ruled out windows 7 rc as the slow transfer speed in consistant with xp pro home and a retail windows 7
at first i did think is was the cable but ive used a good few to try and see if this is the problem. the pattern of slow transfers run throughout the wires i have
i have tried another card in my phone and i got the same result
this leaves me with two possibilites
the phone hardware (oh and it hs newton rings) is screwed and i need a replacement
or
the phones rom is conflicting with the transfer somehow
can anyone tell me if theyve experienced drastic changes in the transfer speed depending on the rom used
Click to expand...
Click to collapse
I've noticed transfer speed from SD to PC has become very slow, but this appears to coincide with some of the latest rom builds or possibly wm6.5.x. If you revert back to a stock rom the transfer speed is back to normal
Well SK Tools tells me the write / read to my Sandisk 16gig card is
Write 803.66 KB/sec
Read 6880.18 KB/sec
With data transfer via the cable to my laptop I used CrystalDiskMark to measure and the results were
-------------------------------------------------
CrystalDiskMark 2.2 (C) 2007-2008 hiyohiyo
Crystal Dew World : http://crystalmark.info/
--------------------------------------------------
Sequential Read : 6.376 MB/s
Sequential Write : 4.339 MB/s
Random Read 512KB : 6.383 MB/s
Random Write 512KB : 1.786 MB/s
Random Read 4KB : 1.245 MB/s
Random Write 4KB : 0.021 MB/s
Test Size : 50 MB
Date : 2009/12/23 9:04:00
To confirm I copied a 150MB film from the HD to to PC and it took 24 seconds.
I don't know if any of this helps but as said before I am happy with the speed.
r
Andrew
Micro SD HC 16GB Slow trnasfer speed
This is as confusing as it can get...
i can transfer 10MB under 2-3 seconds... but as soon as i go to transfer a 400MB video file i recored on my Samsung Epic in 720HD mode.. it wants to transfer at like 200KB/Sec.. like what's that about.... so i shoot a quick video... with file size of about 5MB.. and it transfered faster than i could blink.... Are these cards like some how restricted to make our larger file transfers a miserable hell to back up to the computer???
Any help wold be appricaited...
My system specs..
Windows Vista ultimate 64bit
Quad core 3.4Ghz ( That can't be an issues lol)
A gigabit mother board with USB 2.0 and 3.0 ( same results from both)
6GB DDR3 Ram
etc.....
Thax...
its the cable you are using
i tried using other cables to connect my hd to the computer and it is slow
and when i tried with the orignail it was faster
so i think you might need to buy a touch hd usb cable
I've looked everywhere. No one seems to have posted them. What are they?
Right now I'm a bit confused. Since this is an awesome device you'd think it would be fast in every aspect. It is, except for USB file transfers.
I'm running on Windows 7 Ultimate. I backed up everything from my phone to the computer with a data transfer rate from the SD card, in the phone, of 4.5MB/s. I then formatted the card (read earlier that this would help with the HD2 lock-ups) and copied everything back onto the SD card in the same fashion, through the phone. The data transfer back is right around 2.5 MB/s.... ???
I've tested all the ports around the computer, each are about the same. Anyone have any idea on how to fix this?
First thing would be to tell what kind and class of microSD card you have...
That would really depend on your SD card "class".
The higher the class, the faster it is capable of performing reading and writing operations.
But it's better to avoid the 16GB cards... the larger capacity cards take much longer to read... regardless of classifications or brand.
Something like a 4GB - Class 6 card is excellent.
I've read that it's only a class 2 MicroSD. Do you guys know where I can get class 4, or even a class 6 MicroSD? Whichever I get however depends on the max speed of the HD2. For example, I don't want to buy a class 6 and find out that the HD2 can only handle speeds up to the class 4. There is a $30-$40 USD difference.
Thanks for the SD info, it definitely helps. But now we're brought back to my original question. What are the max transfer speeds through the phone onto/from the MicroSD card? Has anyone found out?
personally i wouldn't do large data backups through activesync/MDC with the card still in the phone.
its simple to remove the card and put it in the supplied adapter card for use with sd_readers.
i bought a usb1.1 reader from a 'pound' shop, copying large files takes alot less time (average 10-11mb/sec) with my more expensive usb2.0 reader its even faster (average 50-60mb/sec)
card class does make a difference, but then so does sending large amounts of data through a 'middle man' like activesync or device center.
budget SD reader FTW
That is a good point, and I agree is faster than through the phone. For me though I have a few accessories on the phone which make taking the SD card out quite a pain.
I have an invisishield on the screen, and a poly-something or other high density plastic cover to replace the cover that came with the phone,-- It grips around the HD2 tightly. The cover is wonderful, but it tends to interfere with the invisishield. So if I am continually taking the cover on and off to get the SD card out I will eventually bend up the edges of the invisishield and will need to get that replaced.
In my best attempts to keep the phone nice I'm going to have to stick with whatever input/output the HD2-to/from-SD can give me.
choosing disk drive mode rather than active sync is the easiest way to speed up file transfers.
re: the figures you gave in post 1, write is always slower than read.
Forgot to mention, it was in 'disk drive mode'.
Btw, I found that the HTC HD2 is USB 2.0 Hi-Speed capable out-of-box. (I'd post a link, but forums wont let me, being new), and Hi-Speed USB can transfer 480Mbits/s, or ~57MB/s (Wikipedia, Universal Serial Bus, Signaling).
The Class 6 MicroSD card can write 48Mbits/s, or 6MB/s (Wikipedia, Secure Digital, Speeds). Easily obtained for the HD2.
Assuming this is everything that needs to be dealt with, this should work out wonderfully. I'll be writing files 300% faster with a class 6, and reading a whole lot faster (thanks Samsamuel, forgot about that read/write differences). Question is though, is this all? Or do I need to install some hi-speed usb driver on the computer? Or are there other things I'm not seeing that need to be dealt with?
its also worth remembering when you are doing the maths that USB loses around 25/35% to networking overhead. (the data that makes up the packet that holds the data you are transferring)
So, 480 Mbit = 60MBytes total = around 35Mbytes actual data transferred per second. (Results vary depending on the system, the cable, all kinds of things, but 30-35 is average, a little more in a testbed situation.
So I guess I'll just have to suffer with 219% faster instead of 300%... Well, looks like I'm returning the HD2!
hi i just got the sandisk extreme 64gb microsd card.
suppose to be 30mb/sec right?
but when im transfering video files from PC (win8/64bit) to phone via usb3 ports/cable to card, a 4gb content is showing to be completed in 50min..
this cant be correct.. right?
the actual time that its transferred across is more like 20min.. but still it should be faster right?
i had it on usb debugging as well.
is there something wrong with my setup?
aliguu said:
hi i just got the sandisk extreme 64gb microsd card.
suppose to be 30mb/sec right?
but when im transfering video files from PC (win8/64bit) to phone via usb3 ports/cable to card, a 4gb content is showing to be completed in 50min..
this cant be correct.. right?
the actual time that its transferred across is more like 20min.. but still it should be faster right?
i had it on usb debugging as well.
is there something wrong with my setup?
Click to expand...
Click to collapse
Did you put the phone in usb 3 mode
aliguu said:
hi i just got the sandisk extreme 64gb microsd card.
suppose to be 30mb/sec right?
but when im transfering video files from PC (win8/64bit) to phone via usb3 ports/cable to card, a 4gb content is showing to be completed in 50min..
this cant be correct.. right?
the actual time that its transferred across is more like 20min.. but still it should be faster right?
i had it on usb debugging as well.
is there something wrong with my setup?
Click to expand...
Click to collapse
might be the card.. i transfered 3 roms to my internal sdcard yesterday, about 3.9gb and it took like 7 or 8 mins
The speeds defined for cards are the best achieved by the manufacterer with an unspecified card reader, and only for contious r/w. The smaller the chunks the longer it will take, below 4 k at best around 2 MB.
In a HAMA USB 3.0 reader on a NEC/Renesas controller in an Elitebook 8560p I could achieve 20 MB read and 70 MB write, but as soon as the notebook was used for something else or smaller chunks the transfer rate drops.
The cable was only 20 cm long, with bad cables and other controller or Hubs in beetween it can get much slower, even if you use a HDD or SSD.
USB 3.0 is like USB 2.0 was in the first years slow and buggy, but if both controller and everything else matches it's fast then the 30 MB where USB 2.0 maxes out.
Test your µSDcard in an USB 3.0 reader using ATTO and you'll know how fast it really is.