One modification to the outer KVM that may help here:
adding --unsafe-cache to your first level KVM will use host ram to cache guest writes to the qcow2 image -- this means what it means, if kill your VMs or host machine has power failure, you'll lose data. With that in place the same test resulted in add-machine to status: started of: 149 seconds.
One modification to the outer KVM that may help here:
adding --unsafe-cache to your first level KVM will use host ram to cache guest writes to the qcow2 image -- this means what it means, if kill your VMs or host machine has power failure, you'll lose data. With that in place the same test resulted in add-machine to status: started of: 149 seconds.