[Bug 197762] Re: file transfers on USB flash key (pendrive) or USB HDD are slowing down with time

Zordid zordid at gmx.de
Fri Apr 2 18:06:19 UTC 2010


This bug is the most annoying, most critical and nerve-wracking one in the whole Ubuntu universe!
This makes me hate my beloved Ubuntu cause I am not able to use ANY USB-connected memory device! I can also constitute that when copying large files (>100MB) to any USB device (memory stick, hard drive, does not matter...) the transfer starts "normal" with a couple of MB/sec, everything's normal - but then, after 100 MB have been transfered, the speed drops dramatically down to a few KB/sec - when copying 2 GB files, I sometimes get the remaining time up to over 1 hour!!

What I can see then, is that the load of the system rises to 6 or even 8
- only because of that file transfer going on. When the copy finally is
done, the system behaves normal again and the load is where it belongs,
0.something or so.

This problem has been there for quite some time now, at least the last
1,5 to 2 years! I am not sure though when it first hit me...

I am using the 64bit Ubuntu 9.10 currently on a Dell Latitude D830.

Is there ANYBODY out there who knows how to fix this?? I don't want to
have to use Windows just because file copying is so damn slow! Also, I
am always kind of in a trouble when I want to copy files for friends:
when they see how long it takes I cannot find a single positive argument
for them to switch to Ubuntu anymore!! :-(

-- 
file transfers on USB flash key (pendrive) or USB HDD are slowing down with time
https://bugs.launchpad.net/bugs/197762
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