Sorry, but could you please clarify these two statements?

On Mon, May 14, 2012 at 09:24:56PM +0200, Guido Günther wrote:
> Yes the usb table hogging the cpu is a known issue:
> 
>       http://lists.gnu.org/archive/html/qemu-devel/2010-04/msg00149.html
> 
> however the cpu load should drop to zero even when you have the usb
> tablet enabled.

> > I'll leave it to you to decide what to do with this information.  Can
> > anyone reproduce this?
> 
> Yes. Saving cpu cycles without the tables is reproducable here.

Does usb-tablet cause extra cpu load or not?


According to powertop, with usb-tablet, I didn't see wakeups/second go
under 800.  Without, the system easily reached 150.

> Did you create the vm using virt-manager? It's adding the tablet by
> default since we can't easily distinguish between systems that need it
> and those that don't.

With virt-install.

Is this a good default?  I'd expect tablets to be quite rare.



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