Performance Penalty of Multiple VHosts in rabbitmq?

Question

Is there a performance penalty to run many vhosts as opposed to many exchanges? I have to support thousands of different clients, and I am trying to decide whether each client should receive its own vhost, or I should have one vhost and each client gets its own exchange. Which is the better choice vis-a-vis performance and resource utilization?

Answer 1

Received an answer from RabbitMQ. VHosts actually only exist as a security context so they have almost no overhead so there should be very little overhead in using many vhosts.