OVN Scale Test is a plugin of openstack Rally.

OVN Scale Test is intended to provide the community with a OVN control plan scalability test tool that is capable of performing specific, complicated and reproducible test cases on simulated scenarios.

When something fails, performs slowly or doesn't scale, it's really hard to answer different questions on "what", "why" and "where" without a solid scalability testing framework.

For start using this tool, you need to have a Rally installed, the workflow is also similar to Rally's.

OVN Scale Test documentation on ReadTheDocs is a perfect place to start learning about it.

OVN Scale Test documentation:

http://ovn-scale-test.readthedocs.org/en/latest/

OVN Scale Test step-by-step tutorial:

http://ovn-scale-test.readthedocs.org/en/latest/tutorial.html

Code is hosted on github:

https://github.com/openvswitch/ovn-scale-test