good night! has been a very slow rate of transfer from the computer to the USB on openSUSE, and the pendrive to the computer is much faster, I’ve tested other distros and the performance was very good. this is from the version now in openSUSE 11.2 and 11.3. If anyone has any idea how to fix I thank
Sorry for the english, I am Brazilian and I used google translate!
On 2010-09-19, asghan <asghan@no-mx.forums.opensuse.org> wrote:
> good night! has been a very slow rate of transfer from the computer to
> the USB on openSUSE, and the pendrive to the computer is much faster,
> I’ve tested other distros and the performance was very good. this is
> from the version now in openSUSE 11.2 and 11.3. If anyone has any idea
> how to fix I thank
Hi, it’s completely normal that writing to the pen drive is slower then
reading from it. For instance, on my Kingston 16G pen, the writing seems
limited to about 3 MB/s, the reading is over 20 MB/S. This is coherently so
on several realeases of openSUSE, other Linux’es and even Windows.
What kind of speeds are you getting ?
Beware of the cache when testing. Use the sync command after your copy, to
make sure all the writing is done. And use a large file.
Time this, with a file at least a few 100’s of MB’s:
cp /test/source/file /pen/drive/
sync
–
When in doubt, use brute force.
– Ken Thompson
On 2010-09-19 23:36, asghan wrote:
>
> good night! has been a very slow rate of transfer from the computer to
> the USB on openSUSE, and the pendrive to the computer is much faster,
> I’ve tested other distros and the performance was very good. this is
> from the version now in openSUSE 11.2 and 11.3. If anyone has any idea
> how to fix I thank
This is normal, write to a thumb disk is slow. Some units are faster.
Some mount options make operations slower, like “flush”.
> Sorry for the english, I am Brazilian and I used google translate!
I hope you get it back correctly. If not, I can try Spanish :-?
–
Cheers / Saludos,
Carlos E. R.
(from 11.2 x86_64 “Emerald” GM (Minas Tirith))