Re: Performace data when running Windows VMs

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On Wed, 2009-08-26 at 11:27 -0500, Brian Jackson wrote:
> On Wednesday 26 August 2009 11:14:57 am Andrew Theurer wrote:
> <snip>
> > >
> > > > I/O on the host was not what I would call very high:  outbound network
> > > > averaged at 163 Mbit/s inbound was 8 Mbit/s, while disk read ops was
> > > > 243/sec and write ops was 561/sec
> > >
> > > What was the disk bandwidth used?  Presumably, direct access to the
> > > volume with cache=off?
> >
> > 2.4 MB/sec write, 0.6MB/sec read, cache=none
> > The VMs' boot disks are IDE, but apps use their second disk which is
> > virtio.
> 
> 
> In my testing, I got better performance from IDE than the new virtio block 
> driver for windows. There appears to be some optimization left to do on them.

Thanks Brian.  I will try IDE on both VM disks to see how it compares.

-Andrew

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