On Tue, Apr 14, 2015 at 04:53:52PM +0530, Jatin Davey wrote:
On 4/14/2015 4:42 PM, Dominique Ramaekers wrote:
About Spice: I think it’s good practice to use spice because it
improves the performance of the VM in general by improving screen
performance. If your VM is constantly displaying output, you’ll
probably will notice a difference.
[Jatin] Ok, This is not my concern as of now. I will take a look at
it sometime later.
About virtio: You can see it in the settings. Better yet, it’s in
your XML. If you post your XML, we can take a look…
Here is the xml associated with my VM:
********************************
<domain type='kvm'>
<devices>
<emulator>/usr/libexec/qemu-kvm</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source file='/var/lib/libvirt/images/****.qcow2'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
This disk is configured to use IDE, so performance of anything that
does disk I/O is going to be terrible. You really want to be using virtio.
<interface type='bridge'>
<mac address='52:54:00:c9:58:c9'/>
<source bridge='br332'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
This doesn't have any model listed at all, so it will be falling back
to a generic emulated NIC. Again performance of this is likely going
to be terrible for anything doing network I/O. You want to be using
virtio for this too.
Regards,
Daniel