Re: [Xen-users] usbback?

[Julian Davison <julian-xen_users@xxxxxxxxxxxxxxxxxxx>]

Mark Williamson wrote:
> > That's the theory :)
> > I've been running X in a domU and the mouse response was a little
> > sluggish at times. It didn't seem to do quite the same thing when
> > X was running in dom0.
> That sounds like it would be interesting to investigate.
I thought so :)
We are hoping to use a single box with several video cards
to run 3 desktops (as library catalogue viewers) so the usbback
question is particularly interesting to us too.
Unfortunately other things have been given priority so progress
has slowed somewhat and I've not had time to explore exactly
what was going on.

> Worth noticing that by default dom0 has more permissive scheduling parameters 
> than the domU and that the domU itself might conceivably have less memory, 
> depending on your setup - these could also be factors.
I'm fairly sure that every domX was told to use the same amount
of RAM. The RAM size certainly impacted on firefox' performance,
but less so than the apparent sluggishness of the mouse.

> Of course, if it's jerking when the domU is unloaded, that seems kinda strange 
> and would be interesting to investigate...
I'm not sure I understand this...
Do you mean jerking with X in dom0 without domU running?

--
Julian Davison
Note: 1) This may have come from an address @cbhs.school.nz
         but isn't necessarily the (or even an) official view
         of Christchurch Boys' High School
      2) While replying to this address may get into my mailbox
         it will almost certainly be filtered into a mailing list
         folder. To actually reach actual me, strip off the bit
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