Update After 10 Gbyte transfer to sd card speed is down again. Scheduler fix is not enought for me.
May be it would help for someone - http://ubuntuforums.org/showpost.php?p=8653721&postcount=29 "yes its fixed, but not in the 2.6.31 kernel branch. I experienced the same problem you described when trying to copy files from my internal hard disk to either a usb external hard disk or a usb thumbdrive. the speed would start at about 30 MB/s then quickly drop down to 5 MB/s and sometimes get down to even 1.5 MB/s. I thought it was pretty funny that i could download files from the Internet at 2.6 MB/s but couldnt even transfer them via usb that fast. It also spiked my CPU and caused my wifi to hang and disconnect as well. Last night I installed the Linux 2.6.33RC3 kernel from: http://kernel.ubuntu.com/~kernel-ppa...e/v2.6.33-rc3/ I ran some tests and found that my USB file transfers ran at full speed and did not drop like before. I should point out that I am running the 64bit kernel so i dont know if this issue exists with the 32bit kernel or not." -- 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