MQTT-Bench : MQTT Benchmark Tool

This is the benchmark tool for MQTT Broker implemented by golang. This can benchmark the throughput for publishing and subscribing.

Supported benchmark pattern is:

• Parallel publish from clients
• Parallel subscribe from clients with publishing

Getting started

Installation

Use go get and go install

$ go get github.com/takanorig/mqtt-bench
$ go install github.com/takanorig/mqtt-bench

or

Download here

https://github.com/takanorig/mqtt-bench/wiki/Download

Publish

• Precondition
• The MQTT Broker is started.

$ mqtt-bench -broker=tcp://192.168.1.100:1883 -action=pub
2015-04-04 12:47:38.690896 +0900 JST Start benchmark
2015-04-04 12:47:38.765896 +0900 JST End benchmark

Result : broker=tcp://192.168.1.100:1883, clients=10, totalCount=1000, duration=72ms, throughput=13888.89messages/sec

Subscribe

• Precondition
• The MQTT Broker is started.
• Publishing to MQTT Broker.

(Publish the messages while subscribing)
$ mqtt-bench -broker=tcp://192.168.1.100:1883 -action=pub -count=10000

$ mqtt-bench -broker=tcp://192.168.1.100:1883 -action=sub
2015-04-04 12:50:27.188396 +0900 JST Start benchmark
2015-04-04 12:50:27.477896 +0900 JST End benchmark

Result : broker=tcp://192.168.1.100:1883, clients=10, totalCount=1000, duration=287ms, throughput=3484.32messages/sec

If the following message is output to the console, the count is over limit. So, please set -intervalTime option.

panic: Subscribe error : Not finished in the max count. It may not be received the message.

TLS mode

Use -tls option.

• Server authentication

-tls=server:certFile

• Server and Client authentication

-tls=client:rootCAFile,clientCertFile,clientKeyFile

Usage

Usage of mqtt-bench
  -action="p|pub or s|sub"                    : Publish or Subscribe (required)
  -broker="tcp://{host}:{port}"               : URI of MQTT broker (required)
  -broker-password=""                         : Password for connecting to the MQTT broker
  -broker-username=""                         : Username for connecting to the MQTT broker
  -tls=""                                     : TLS mode. 'server:certFile' or 'client:rootCAFile,clientCertFile,clientKeyFile'
  -qos=0                                      : MQTT QoS(0|1|2)
  -retain=false                               : MQTT Retain
  -topic="/mqtt-bench/benchmark"              : Base topic
  -clients=10                                 : Number of clients
  -count=100                                  : Number of loops per client
  -size=1024                                  : Message size per publish (byte)
  -pretime=3000                               : Pre wait time (ms)
  -intervaltime=0                             : Interval time per message (ms)
  -x=false                                    : Debug mode

Note

• Using Apollo
• If you use Apollo 1.7.x, the subscribed messages can't be output to console even if debug mode. If you want to output the subscribed messages, designate -support-unknown-received option.