Add a performance test.

Signed-off-by: Jerome Maloberti <jerome.maloberti@citrix.com>
Add memory and disk size options.

Signed-off-by: Jerome Maloberti <jerome.maloberti@citrix.com>
Try to fix a bug when dhclient fail.

Signed-off-by: Jerome Maloberti <jerome.maloberti@citrix.com>