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Date: Sat, 25 Dec 2004 22:34:39 -0800
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cc: freebsd-usb@freebsd.org
Subject: Re: How to mount usb2 devices
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Bernd Walter wrote:
> On Sat, Dec 25, 2004 at 11:46:58PM +0100, Darksidex wrote:
> 
>>Bernd Walter wrote:
>>
>>
>>>It is running high speed, because it is attached to your ehci
>>>controller.
>>>Having high throughput is another story - msdosfs is not very efficient
>>>with some devices - you might want to check a dd with big block sizes
>>>to verify if higher speed can be reached.
>>>
>>>
>>
>>How can I do it?
> 
> 
> dd if=/dev/da-whatever-number-it-is of=/dev/null bs=64k
> You may want to test higher values for bs= too.

I think that there is a lot of work that can be done to speed up
USB2 devices..
for example Ugen devices can be sped up by an order of magnitude
with a simple set of changes. (that I will commit when I clean
them up) I have to guess that the Umass driver may have similar
performance problems.