If you have been paying attention to our news lately, you’ll probably realize that we have been updating several images. We are cleaning up the App Center listing and making sure all images have Virtio/VirtioBLK enabled by default.
Remember, that these drivers are no small thing. Performance improvement is noticeably and while you can usually activate them when they are not on, some images may require some extra tweaking, this way we take the burden off your back.
From now on, when you provision CentOS 6.0, you’ll have virtio from the get go and the speed it entails.