I have observed this behavior on 64-bit xubuntu, either using thunar, nautilus or just cp to drive. Most of the times USB drives, eithe ext3 or fat perform well, but I have observed extreme sluggishness making the drve totally unusable. Rebooting corrects the problem. This was observed on 2 identical PCs. It happened to me when I was in the need of finishing a transfer operation in high speed...Next time I will try:
sudo hdparm -t /dev/sdb1 /dev/sdb1: Timing buffered disk reads: 54 MB in 3.00 seconds = 17.99 MB/sec and: sudo seeker /dev/sdb1 Seeker v2.0, 2007-01-15, http://www.linuxinsight.com/how_fast_is_your_disk.html Benchmarking /dev/sdb1 [953867MB], wait 30 seconds.............................. Results: 60 seeks/second, 16.66 ms random access time to compare with the values I am getting now. I will try to unmount and mount by hand e.g sudo mount /dev/sdb1 ~/ext/tmp assuming sdb1 is the drive shown on: ls /dev and ~/ext/tmp exists (note the ~ is the same as /home/<user>) I am still to understand the automount system in Lucid, as neither autofs nor autofs5 are installed in my systems. Hal is probably to blame for what we are observing. Will conduct a few trials. Cheers Antonio -- Copying To USB Is Very Slow In Ubuntu 10.04 https://bugs.launchpad.net/bugs/624510 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
