Thanks. I used a 3.0 usb stick(msdos) and i get 6.6mb/sec. I guess its ok. thanks for your answer.
On 01/29/17 23:31, edward wandasiewicz wrote: > From your dmesg, your machine has USB 3.0 hardware ports > > usb0 at xhci0: USB revision 3.0 > > and you're using a USB 2.0 flash drive - rev 2.00/1.10 > > umass0 at uhub0 port 2 configuration 1 interface 0 "Kingston > DataTraveler 2.0" rev 2.00/1.10 addr 6 > > You could upgrade to a USB 3.0 flash drive. > > On USB 3.0 hardware port with a USB 3.0 flash drive ( not an SSD ), with a > > MSDOS file system, I get about 2.5 MB/s > > 4.2BSD file system, I get about 7 MB/s > > with rsync --info=progress2 ./SOURCE/ /DEST transferring a single 1GB file. > > Attempting to dd an image, I get about 20 MB/s > > # dd if=img bs=1m | pv -s 16GB | dd of=/dev/rsd1c bs=1m > > On Sun, Jan 29, 2017 at 6:57 PM, Ali Farzanrad <temp+...@frad.ir> wrote: >> G <gp...@mailbox.org> wrotes: >>> Hello. >>> Im trying to copy files from my laptop to a usb stick. >>> The speed varies between 300kB/sec and 400kB/sec. Its really slow. >> >> I also have the same problem. >> It seems that block files are slow and it is not possible to mount raw >> files. >> I tested it with dd(1) and found that fastest way to transfer data is >> using raw devices: >> >> # dd if=/dev/rsd1c of=temp.fs bs=1m >> # vnconfig vnd0 temp.fs >> # mount /dev/vnd0i /mnt/usb >> # ... do copy ... >> # umount /mnt/usb >> # vnconfig -u vnd0 >> # dd if=temp.fs of=/dev/rsd1c bs=1m
