On 11/18/2012 08:22 PM, Nux! wrote:
Hi,
I notice the VMs are not using the virtio type NICs, but some "Ethernet controller:
Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+".
In my experience the virtio device is quite stable, any reason why it's not default?
I see that for block device virtio is default.
This is something we should look at changing by default I think.
There have are some kernel bugs precluding this:
https://bugzilla.kernel.org/show_bug.cgi?id=42829
But Red Hat based kernels should be good in this area.
It seems like it's a big global flag in nova.conf currently:
libvirt_use_virtio_for_bridges = True
Ideally that would be a property of the guest image,
i.e. a tag in glance or something.
thanks,
Pádraig.