On Thu, Nov 21, 2013 at 03:43:53PM +0800, Hui Kai Ran wrote:

I learned that there is a new technology - virtio-blk-data-plane introduced in qemu to bring a leap in IO performance to KVM. Has this feature been supported in libvirt? if it's, how to configure xml to support this feature?

The advice from the QEMU developers was that this was an experimental feature (hence, IIRC, it used a 'x-data-plane' property name), and that we shouldn't explicitly support it in libvirt. You can use the QEMU command line arg passthrough in the XML to set it. When it matures in QEMU it will become the default and thus no libvirt support will be required at all Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|