rocket.chat.mqtt/node_modules/mqtt-packet/benchmarks/generate.js

It's a MQTT Server, using redis to scale horizontally.

'use strict'

var mqtt = require('../')
var max = 100000
var i
var buf = Buffer.from('test')

// initialize it
mqtt.generate({
  cmd: 'publish',
  topic: 'test',
  payload: buf
})

var start = Date.now()
var time

for (i = 0; i < max; i++) {
  mqtt.generate({
    cmd: 'publish',
    topic: 'test',
    payload: buf
  })
}

time = Date.now() - start
console.log('Total time', time)
console.log('Total packets', max)
console.log('Packet/s', max / time * 1000)