jsmodbus/test/heap-test-coils.js

Implementation for the Serial/TCP Modbus protocol.

'use strict'

const modbus = require('../')
const v8 = require('v8')
const net = require('net')
const socket = new net.Socket()
const options = {
  'host': 'localhost',
  'port': 8888
}
const client = new modbus.client.TCP(socket)

const request = function () {
  return client.readCoils(0, 13)
}

socket.connect(options)

socket.on('connect', function () {
  let p = Promise.resolve()

  for (let i = 1; i < 1e5; i++) {
    p = p.then(request)
  }

  p.then(function () {
    const usedHeapSize = Math.floor(v8.getHeapStatistics().used_heap_size / 1e6)

    console.log('Heap:', usedHeapSize, 'MB')

    socket.end()
  })
})