On Thu, 21 Aug 2003 11:58:29 -0700 "dan" <[EMAIL PROTECTED]> wrote:
| I'm using a USB hard drive on my Linux box (2.4.7 kernel), and I'm noticing | some bizarre problems. | | Transfers to and from the USB drive are *painfully* slow. I haven't had a | chance to run bonnie to measure the performance yet, but will do so later | today. Yes, usb-storage began life without doing queued bulk IO transfers. It now knows how to do that and this speeds this up much. | The other problem - the onethat really concerns me - is that the driver | seems to periodically pause for no apparent reason. It appears that about | every 150-200 MB of transfers, the transfer process will stop for a few | seconds. When the transfers stop, *everything* on the machine seems to stop. 2.4.x has some IO buffer management problems. These are fixed on 2.6.0 or in the -aa 2.4.x patches, where x is recent, whereas 2.4.7 is ancient. The most recent -aa 2.4 kernel patch is here AFAIK: http://www.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.22pre7aa1.bz2 | Are these know problems? Do more recent releases of the driver address any | of these? -- ~Randy [mantra: Always include kernel version.] "Everything is relative." ------------------------------------------------------- This SF.net email is sponsored by: VM Ware With VMware you can run multiple operating systems on a single machine. WITHOUT REBOOTING! Mix Linux / Windows / Novell virtual machines at the same time. Free trial click here:http://www.vmware.com/wl/offer/358/0 _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
