Comment 7 for bug 1295732

export LIBVIRT_NIC_DRIVER=virtio
./devtest.sh --trash-my-machine
[2014-03-24 18:18:52] Total runtime: 6133 s
[2014-03-24 18:18:52] ramdisk : 632 s
[2014-03-24 18:18:52] seed : 1408 s
[2014-03-24 18:18:52] undercloud : 1615 s
[2014-03-24 18:18:52] overcloud : 2385 s

./devtest.sh --trash-my-machine -c
[2014-03-25 09:03:53] Total runtime: 1739 s
[2014-03-25 09:03:53] ramdisk : 0 s
[2014-03-25 09:03:53] seed : 265 s
[2014-03-25 09:03:53] undercloud : 444 s
[2014-03-25 09:03:53] overcloud : 1022 s

so even with cached run and virtio driver, overcloud standup is still taking 17 minutes