Testcloud: Use cache='unsafe' for a nice IO boost
@@ -87,7 +87,7 @@ DOMAIN_TEMPLATE = """<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/d
<devices>
<emulator>{{ emulator_path }}</emulator>
<disk type='file' device='disk'>
- <driver name='qemu' type='qcow2'/>
+ <driver name='qemu' type='qcow2' cache='unsafe'/>
<source file="{{ disk }}"/>
<target dev='vda' bus='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
