Hello,
Friday, March 4, 2005, 9:12:57 PM, you wrote:

>> AS> Furthermore, Valentine, do you know for certain that these same problems
>> AS> don't occur with Windows?  Could it be that they _do_ occur, but Windows
>> AS> does a good job of recovering quickly?
>> This can be the issue. I found out that Linux also recovers from this
>> "hanging" after solid amount of time (say, 5 minutes). The most
>> interesting thing is that file you ried to copy is at the very end
>> received successfully. Windows can recover from this more quickly but
>> since hardware is the same I think it should be possible to implement
>> the same recovery procedure on Linux.

AS> There are patches under development to do that.

Sounds promising. Is there any place (CVS, lists or something) where one can
get more information?

>> Also (it's a mere observation,
>> I didn't do any measurements etc.) Windows copies files faster than
>> Linux (I mean, at real USB 2.0 speed, when transfer rate in my Linux
>> system is usually about 700-800 KB/sec, although /pric/bus/usb/devices
>> says usb-storage is conected to USB 2.0 controller (Spd=480) not 1.1).

AS> Slowness could be caused by errors during the transfers or by using the ub
AS> driver instead of the usb-storage driver.
If I try to use ub driver, the speed falls to about 40-50 Kb/sec :-)
No, I'm using usb-storage, but I don't thin that speed should be
considered as separate issue, at least for now. Anyway, my pendrive
hangs prey fast, so I have no means to measure this quantity
accurately.

Thank you for answering.

---
Valentine Sinitsyn



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