Re: [Xen-users] usbback?

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> > I successfully use USB printer in domU via PCI passthrough.
>
> How do you find the speed? Is it noticably slower than native?

Using PCI passthrough to hand an entire USB controller to the domU should be 
(pretty much) as fast as dom0 accessing it, i.e. about the same as the 
unvirtualised case.

Obviously if you need a lot of CPU time to process the data (e.g. you're 
straeming video) then you'll have to make sure you have enough of it despite 
the other running domains, otherwise you won't be able to keep up.  But the 
IO itself should be relatively unaffected.

Cheers,
Mark

-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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