On Monday 16 March 2009, Torfinn Ingolfsen wrote:
> On Tue, 17 Mar 2009 05:01:16 +0900 (JST)
>
> "M. Warner Losh" <[email protected]> wrote:
> > In message: <[email protected]>
> >
> >             Torfinn Ingolfsen <[email protected]> writes:
> > : Have anyone seen bad performance when using umass devices (external
> > : hard drives) in combination with Xorg 7.4?
> >
> > I don't see it.
> >
> > But I'm not using a usb mouse/keyboard...  Are you?
>
> No, I am not. PS/" mouse and keyboard here.
>
> This is very strange, very puzzling.

It's maybe an interrupt problem. Can you do some vmstat'ing before and after ?

Also try to upgrade the kernel to the lastest sources. There has been an EHCI 
performance quirk added recently.

--HPS
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