On 4/14/2015 4:58 PM, Daniel P. Berrange wrote:
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 How do i make use of virtio for the both disk and network that you have mentioned above ? Any pointers to it would be helpful.
Thanks Jatin