on Wed Apr 11 2007, David Abrahams 
<dave-UB3wUj7V41K5azolltMz9laTQe2KTcn/-AT-public.gmane.org> wrote:

> on Tue Apr 10 2007, Michael Riepe <michael-0QoEqw4nQxo-AT-public.gmane.org> 
> wrote:
>
>> Hi!
>>
>> Avi Kivity wrote:
>>
>>> Sounds like ondemand is broken.
>>
>> Maybe it only switches when the load rises in user space. With KVM, it
>> appears in system space. Got to cross-check that on my Core Duo.
>
> More data: it definitely seems to make a difference whether the VM's
> desktop is showing.  If I switch Gnome workspaces so it's not visible,
> it doesn't seem to drive the frequency up.

In fact, kvm doesn't seem to make any progress at all :(.  I'm
currently going through the "microsoft update" dance on a VM there,
and I literally left for an hour during which there was no progress
because the QEMU window wasn't visible.

Even stranger, if I minimize the QEMU window and then switch
workspaces, it gets plenty of cycles.

-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com

Don't Miss BoostCon 2007! ==> http://www.boostcon.com


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