Ubuntu
gvfs package

  1. Bug #197762
  2. Comment #59

Comment 59 for bug 197762

Revision history for this message
Ulrich Lukas (ulrich-lukas) wrote : Re: file transfers on USB disk are very slow

I checked again, and I have to take back my previous statement. "pci=routeirq" does not seem to speed up file transfers for my system. (The KDE4 file transfer progress window seems to provide a not very conclusive average speed value)

The reason I posted in this bug report is that I believe this actually is a kernel issue.

I did several measurements copying big files (1.4 GiB Video) with Dolphin, Konqueror, on the command line using "dd" and using cp like follows: "time (cp 1.4GiB-testfile.mkv /media/disk; sync)".
The speed varies between 3MiB/sec and 8 MiB/s.

On another PC with OpenSuse installed, I actually get much higher average transfer rates, between 12 MiB/s and 15 MiB/s.

On the same PC booting MS Windows, I also get around 14 MiB/s.