[Users] Extremely poor disk access speeds in Windows guest

[Alan Murrell]

I notced updates on a Win7 VM I ceated previously were *really* slow,  
but when I logged in to it remotely for daily use, it seemed pretty  
snappy.  I did not do any significant data transfers, however.  I had  
the same latest virtio-win drivers installed, and in oVirt, the disk  
was of type VIRTIO (and not VIRTIO-SCSI).

For other reasons, I have rebuilt my test host, and am going to be  
installing a new Windows 7 VM.  Is there anything I can do in this  
process to provide more data and help with this troubleshooting?

-Alan