ODL acts as an outperformer among other OpenStack Neutron plugins. What can be the possible justification.
I developed a testing environment of evaluating four different Neutron plugins with ODL as one of them (the rest being ML2, OFAgent, Ryu). For the experimental setup i had a OpenStack multinode environment (14 Compute nodes) and evaluated performance in terms of spawning time of batches of VMs in the face of different types and severity levels of network errors (limiting bandwidths, delays, packet loss rates). Interestingly, results showed that ODL is consistently the fastest of all other plugins under all tested network conditions. Can anyone offer some leads for possible explanations and justification of this exuberant behavior of ODL?