[Bug 197762] Re: file transfers on USB flash key (pendrive) are slowing down with time
echo 10 dirty_writeback_centisecs echo 10 dirty_expire_centisecs Now it should basically write to the stick continously instead of every 3000 centisecs (30 secs). I learned when I found that transferring terabytes through my gigabit results in 30s long pauses, then 80mb/s for a few seconds and then another pause. The same principle should be applicable to usb sticks, although it won't explain why usb harddrives are much faster... -- file transfers on USB flash key (pendrive) are slowing down with time https://bugs.launchpad.net/bugs/197762 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 197762] Re: file transfers on USB flash key (pendrive) are slowing down with time
elevator=noop solved it for me also, but just as murz says: sometimes under heavy disk activity (dd iso - empty sata drive) some parts of Xorg will pause, sometimes for several minutes. I can also see that noop writes to the usb drives without pausing. Normal elevator writes for a few seconds, pause for 1.5 seconds and then keep writing. Noop writes without pauses. -- file transfers on USB flash key (pendrive) are slowing down with time https://bugs.launchpad.net/bugs/197762 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 197762] Re: file transfers on USB disk are very slow
sbec67: The difference isn't the file systems, it's that hard drives are treated differently to USB sticks. As I wrote before... copying to external drives gives me 15MB/s sustained. -- file transfers on USB disk are very slow https://bugs.launchpad.net/bugs/197762 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 197762] Re: file transfers on USB disk are very slow
Leann Ogasawara: Here are your requested log files. Hold this helps somewhat. ** Attachment added: Log files for 2.6.28.6 http://launchpadlibrarian.net/23157695/computer-logs.7z -- file transfers on USB disk are very slow https://bugs.launchpad.net/bugs/197762 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 197762] Re: file transfers on USB disk are very slow
Bus 001 Device 043: ID 152d:2338 JMicron Technology Corp. / JMicron USA Technology Corp. JM20337 Hi-Speed USB to SATA PATA Combo Bridge 20mb/s write. Bus 001 Device 040: ID 1b1c:1a90 (Corsair Voyager GT) 1.5mb/s Differences in attached lsusb -v (pata vs voyager) seem to be... iConfiguration 4 USB Mass Storage iConfiguration 0 iInterface 6 MSC Bulk-Only Transfer iInterface 0 Maybe the voyager is so slow because something isn't registering it a proper mass-storage device? ** Attachment added: lsusb -v http://launchpadlibrarian.net/22620449/usb.txt -- file transfers on USB disk are very slow https://bugs.launchpad.net/bugs/197762 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is the registrant for gvfs. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 197762] Re: file transfers on USB disk are very slow
Same problem here. Corsair Voyager GT 16gb (among the fastest USB sticks around) Linux hitler 2.6.28.2 #3 SMP Sat Jan 31 14:04:46 CET 2009 x86_64 GNU/Linux 4gb memory Ubuntu 8.10 pci=routeirq has no effect. # time mount-dd-umount.sh 20mb takes 7 seconds = 2.8mb/s 30mb takes 6 = 5mb/s 100 takes 14 = 7.4mb/s 300 takes 180 = 1.6mb/s 500 takes 241 = 2.0mb/s -- file transfers on USB disk are very slow https://bugs.launchpad.net/bugs/197762 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is the registrant for gvfs. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
