Análise de desempenho de brokers MQTT em sistema de baixo custo

Abstract

This paper presents a performance analysis (CPU usage, memory consumption and message throughput) of MQTT brokers in a low-cost hardware, the Raspberry Pi 2 Model B. The objectives of the analysis are to ascertain which MQTT broker implementation is best suited to the limitations of the hardware and to verify if the Raspberry Pi 2 is actually able to function as a gateway in a sensor and actuator network for the Internet of Things (IoT). The results showed that the Raspberry Pi 2 can handle large numbers of connections and that the implementation in Erlang (eMQTT) obtained the best results in data throughput, while the implementation in C (Mosquitto) obtained the lowest CPU load and memory consumption.