In a little over 10 minutes we start 20,000 simulated sensors connecting
to the IBM MessageSight MQTT Broker. Each sensor on its own IP address
is publishing messages at the rate of 1 / minute to its own topic, for
a total of around 340 / second. Since the broker is forwarding those to
the lone subscriber, the overall message rate is doubled as shown.
With MIMIC MQTT Simulator you can simulate up to 100,000 (yes, one
hundred thousand) sensors from one host.