Re: [Qemu-devel] Re: [fedora-virt] Fedora Virt status

[Cole Robinson <crobinso@redhat.com>]

On 01/14/2011 01:09 PM, Boris Derzhavets wrote:
>> Boris can you help me to parse this ...
> 
>> SL6 = Scientific Linux 6?
> 
>  Yes, I work with SL6 alpha 4
> 
>> And you're saying that Windows 7 is much faster on SL6 than on Fedora 14?
> 
> Installation itself . Packages deployment phase is much faster on SL 6 ( alpha 4),
> even if I don't pre-load viostor.sys ( option working only on SL 6 )
>

Probably cache related. In RHEL6 we default to cache=none, not so in
Fedora. Use 'virsh edit' to stick <driver name='qemu' cache='none'/>
in your <disk> block, and restart the guest. Newer virt-manager versions
also allow setting this in the UI.

- Cole

>> Are virtio-blk and virtio-net drivers installed in the Windows guest?
> 
> Yes.
> 
> 
> Please, view for details :-
> 
> http://bderzhavets.wordpress.com/2011/01/08/set-up-rh-virtio-scsi-driver-on-windows-xp-kvm-at-kvm-qemu-instance-on-f14/
> 
> XML profiles for F14 and SL6 will be sent to you a bit latter. I cannot reboot  box right
> now.
> 
> Boris.
> 
> 
> --- On Fri, 1/14/11, Richard W.M. Jones <rjones@redhat.com> wrote:
> 
> From: Richard W.M. Jones <rjones@redhat.com>
> Subject: Re: [fedora-virt] Fedora Virt status
> To: "Boris Derzhavets" <bderzhavets@yahoo.com>
> Cc: virt@lists.fedoraproject.org, "Justin M. Forbes" <jmforbes@linuxtx.org>, qemu-devel@nongnu.org
> Date: Friday, January 14, 2011, 12:40 PM
> 
> On Thu, Jan 13, 2011 at 08:27:17AM -0800, Boris Derzhavets wrote:
>> Windows 7 KVM install runs unbelievably fast on SL 6 ( alpha 3) vs F14 with the
>> most recent libvirt stuff :
> 
> Boris can you help me to parse this ...
> 
> SL6 = Scientific Linux 6?
> 
> And you're saying that Windows 7 is much faster on SL6 than on Fedora 14?
> 
>> P.S. It happens no matter of pre-install loading Virtio SCSI driver,
>> which is also possible only on SL6 via virtio-win.1.1.16.noarch.rpm.
> 
> Not sure what 'Virtio SCSI' is.
> 
> Are virtio-blk and virtio-net drivers installed in the Windows guest?
> 
> What does the libvirt XML for this guest look like (from both SL6 and
> Fedora 14)?
> 
> Rich.
>