I've tried using Jaunty Alpha 4 and the bug is still there, as far as I can tell it only happens with automounting and only when writing, not when reading, I've performed some non-scientific experiments to help find the problem and its characteristics, you can find the results below and the log files requested attached.
Copying a 147 MB file from the PC(NTFS partition) to a 4GB USB drive(FAT32 partition): Windows, copied using the GUI, stopwatch timing: 15s Windows, copied using the cmdline(via copy), automatic timing(via wtime.exe): 13.8s Jaunty Alpha 4, mounted automatically, copied using nautilus, stopwatch timing: 31s Jaunty Alpha 4, mounted automatically, copied using terminal(cp), automatic timing(via time): 25.8s Jaunty Alpha 4, mounted automatically, copied using terminal(dd), automatic timing(via dd): 26.1s, reported speed at end (5.9 MB/s) Jaunty Alpha 4, mounted manually, copied using nautilus, stopwatch timing: 15s Jaunty Alpha 4, mounted manually, copied using terminal(cp), automatic timing(via time): 16s Jaunty Alpha 4, mounted manually, copied using terminal(dd), automatic timing(via dd): 16.1s, reported speed at end (9.5 MB/s) Copying a 147 MB file from a USB drive(FAT32 partition) to the PC(NTFS partition): Windows, copied using the GUI, stopwatch timing: 6.6s Windows, copied using the cmdline(via copy), automatic timing(via wtime.exe): 6.8s Jaunty Alpha 4, mounted automatically, copied using nautilus, stopwatch timing: 8s Jaunty Alpha 4, mounted automatically, copied using terminal(cp), automatic timing(via time): 2.6s Jaunty Alpha 4, mounted automatically, copied using terminal(dd), automatic timing(via dd): 18.8s, reported speed at end (8.2 MB/s) Jaunty Alpha 4, mounted manually, copied using nautilus, stopwatch timing: 6.5s Jaunty Alpha 4, mounted manually, copied using terminal(cp), automatic timing(via time): 2.5s Jaunty Alpha 4, mounted manually, copied using terminal(dd), automatic timing(via dd): 17.9s, reported speed at end (8.6 MB/s) ** Attachment added: "lspci-vvnn.log" http://launchpadlibrarian.net/23221040/lspci-vvnn.log -- [jaunty] usb file transfer is very very slow https://bugs.launchpad.net/bugs/334914 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
