Why is copying files through activesync so slow compared to copying files onto my SD card through a USB SD Card Reader?
I suspect it has something to do with USB 1.1 and USB 2.0, but the difference is HUGE!!
100MB File
ActiveSync - 1hr 30mins!!
SD Card Reader - 15 seconds!!
Anyone know why?
prob
1 because of usb1.1 vs. 2
2 maybe because all cominication goes across the cpu's interface and never have direct access to the memory like a sdcard reader does
I think you're right about going through the CPU interface, however,
1 hr 30 min vs 15 sec = 160 times difference!!! Incredible.
Related
i have a sd card (1 gig) but it takes ages to transfer data to it..
for example it takes up to 50 min ot transfer 250 mb
is this normal? this really sucks!!!
Are you using a card reader writer or using activesync direct to your phone?
now activesync but i tried a 1.1 usb card reader writer and it was still crap!
well if it's also slow with a sd card reader then it's not really sd related and the only thing people can say to you is
1 try an usb2 reader
2 get a faster sd card
Can anybody tell me how I can fix my transfer speed with ActifSync 4.0.
Because if I upload the transfer rate is about 100 kb/s.
Anyone with the same phone and sd-card please help me.
Thanks
Ercan
Holland/Turkey
If you want faster transfer speeds use a card reader. Using activesync the data first gets moved to the universal, then from the universal to the memory card. This is very slow due to the limited bus speed of the universal.
But with my 512 mb card, I get normal speed. I think you dont understand how slow it is. Let me explane.
512 mb > 3 sec 1 song
4 gb > 30 sec 1 song
Yesterday I bought a Transcend 4GB 150x SD card.
It's very slow; not only when using it in my HTC Universal, but also in the cardreader in my PC.
I'm going to return it tomorrow...
Jan after reading some reviews they say that it is one of the fastest cards. I think the problem is with the reader. I can now transfer at usb 1.0 speed with Card Export II.
Are there any app. with 2.0 support?
I'm using the:
MDJs_CyanogenMod7_v.2.3_NAND_A2SD+
And a 8gig class-4 SD
When transferring files of 1-2gig the transfer rate drops to
around 800Kb/sec. So a 1 gig file takes up to 20min.
On the stock WinMo 6.5 it goes 5 times faster.
What can i do to speed this up?
1) Does a different android rom help?
2) Revert back to Android SD instead of NAND?
3) Can i do something on the PC to speed things up?
transfers significantly faster with mac
I have noticed that Mac computers transfer files to the external sd card on Andriod phones significantly faster.
1GB transfer on Windows machine takes about 30 min and the same transfer with a Mac is about 5 min. Both are with the external SD card mounted as a drive. The SD card is a class 10 32 GB. The phone is a Samsung S2.
What gives? Does anyone have an idea why this is happening?
Does anyone have a suggestion on what I can do to speed up the Windows transfers?
Yea, i noticed, with my phone at least, that file transfers usually go a lot slower when Smaller files are being transferred as oppressed to big ones.
In my card reader, it would go about 800k for a large group of 10kb and shoot up to 8-9mb. On my phone, the fastest i remembered it going was about 6-8mb/s. Try reformatting changing allocation unit size to 32k. The only problem is that it will waste like 20mb (guessing) by the time its filed up. Its feels it bit faster but i don't really notice most of the time.
If you do it, don't forget to back up!
I'm trying to pull about 40GB of files off my phone. When I transfer the files, its progress moves very, very slowly. After a few seconds of transfer, my SSD's active time goes to 100%, lagging my entire computer to the point that I can't use any programs. My 240GB Intel 520 SSD's response time goes from 0.5 to 1.5 ms response time to 3,000 to 4,000. Transferring files to my HDD's is faster, but still slow. The transfer rate goes min (0mb/s), max (50mb/s), min, max, repeatedly.
The files I'm transferring are split archives of about 50MB each. The USB 3.0 connection uses an Etron USB 3.0 controller. I don't have any trouble transferring files over USB 3.0, except when I use my Note 3. The experience is the same whether I'm transferring from internal phone memory or off its 64gb microSD card. The experience is the same whether the phone is in USB 3.0 mode or USB 2.0 mode.
Has anyone else experienced unexpectedly slow file transfers from their Note 3?
Welcome to the wonderful world of the Media Transfer Protocol.
I still don't know what they were trying to accomplish by removing USB Mass Storage from Android, MTP is a nightmare with anything over 500KB...
It takes me about 22 minutes to copy a 300MB .mp4. From an i7 2.9Ghz 8GB 7200RPM SATA with USB3.0. Even iTunes is quicker, and it has to convert everything!
I realized 70 mbps but only if the target is the internal memory. My sd card was too slow or the card reader in the note is limited.
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.