The wire speed is 480Mb/s, but the protocol probably adds some overhead, which is why my estimate for the maximum possible speed was 40MB/s. I'm not sure if there are reasons why the driver would only allow 10MB/s or if that is a limitation of your hard drive (which is possible).
On Wed, 22 Dec 2004, Thiago Guzella wrote: > On Tue, 21 Dec 2004 17:17:29 -0800 (PST), Stephen J. Gowdy > <[EMAIL PROTECTED]> wrote: > > Are you sure you have it plugged into a USB2 port? You need the ehci > > driver to drive it at _high_ speed. Full speed is only ~900kB/s (which > > means about 12 minutes for a 700MB file), High Speed can do as much as > > 40MB/s (you're probably limited by the hard disk at that point). If you > > are sure it is plugged into a USB2 port you should send the kernel logs > > when you plug the device in and as you load the ehci driver as below it > > looks like it is being driven by the companion driver (low or full speed). > > Hum, by keeping the ehci driver loaded, it took 85 sec to copy a 900 > mb file... thanks for that... I will ask my friend why he suggested > unloading it... > > Is this the maximum speed i should get (10mbytes/sec), supposing i am > not hd limited (as I said, it's a sata model, running ext3)?? As you > mentioned, highspeed allows up to 40Mb/s... > > -- /------------------------------------+-------------------------\ |Stephen J. Gowdy | SLAC, MailStop 34, | |http://www.slac.stanford.edu/~gowdy/ | 2575 Sand Hill Road, | |http://calendar.yahoo.com/gowdy | Menlo Park CA 94025, USA | |EMail: [EMAIL PROTECTED] | Tel: +1 650 926 3144 | \------------------------------------+-------------------------/ ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
