mirror of
https://github.com/JasonYANG170/IOTConnect-Web.git
synced 2024-11-23 20:26:28 +00:00
87 lines
2.5 KiB
JavaScript
87 lines
2.5 KiB
JavaScript
const mqtt = require('./')
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const crypto = require('crypto')
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const max = 1E5
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const start = Date.now() / 1000
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let errors = 0
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let packets = 0
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let randomPacket
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const firstBytes = [
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16 * 1, // CONNECT
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16 * 2, // CONNACK
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16 * 3, // PUBLISH, QoS: 0, No Retain, No Dup
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16 * 3 + 1, // PUBLISH, QoS: 0, Retain, No Dup
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16 * 3 + 8, // PUBLISH, QoS: 0, No Retain, Dup
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16 * 3 + 1 + 8, // PUBLISH, QoS: 0, Retain, Dup
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16 * 3 + 2, // PUBLISH, QoS: 1, No Retain, No Dup
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16 * 3 + 2 + 1, // PUBLISH, QoS: 1, Retain, No Dup
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16 * 3 + 2 + 8, // PUBLISH, QoS: 1, No Retain, Dup
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16 * 3 + 2 + 1 + 8, // PUBLISH, QoS: 1, Retain, Dup
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16 * 3 + 4, // PUBLISH, QoS: 2, No Retain, No Dup
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16 * 3 + 4 + 1, // PUBLISH, QoS: 2, Retain, No Dup
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16 * 3 + 4 + 8, // PUBLISH, QoS: 2, No Retain, Dup
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16 * 3 + 4 + 1 + 8, // PUBLISH, QoS: 2, Retain, Dup
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16 * 4, // PUBACK
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16 * 5, // PUBREC
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16 * 6, // PUBREL
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16 * 7, // PUBCOMP
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16 * 8, // SUBSCRIBE
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16 * 9, // SUBACK
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16 * 10, // UNSUBSCRIBE
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16 * 11, // UNSUBACK
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16 * 12, // PINGREQ
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16 * 13, // PINGRESP
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16 * 14, // DISCONNECT
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16 * 15 // RESERVED
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]
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function doParse () {
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const parser = mqtt.parser()
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parser.on('error', onError)
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parser.on('packet', onPacket)
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randomPacket = crypto.randomBytes(Math.floor(Math.random() * 512))
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// Increase probability to have a valid first byte in order to at least
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// enter the parser
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if (Math.random() > 0.2 && randomPacket.length > 0) randomPacket.writeUInt8(firstBytes[Math.floor(Math.random() * firstBytes.length)], 0)
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parser.parse(randomPacket)
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}
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try {
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console.log('Starting benchmark')
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for (let i = 0; i < max; i++) {
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doParse()
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}
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} catch (e) {
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console.log('Exception occurred at packet')
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console.log(randomPacket)
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console.log(e.message)
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console.log(e.stack)
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}
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function onError () {
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errors++
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}
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function onPacket () {
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packets++
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}
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const delta = Math.abs(max - packets - errors)
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const time = Date.now() / 1000 - start
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console.log('Benchmark complete')
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console.log('==========================')
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console.log('Sent packets:', max)
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console.log('Total time:', Math.round(time * 100) / 100, 'seconds', '\r\n')
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console.log('Valid packets:', packets)
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console.log('Erroneous packets:', errors)
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if ((max - packets - errors) < 0) console.log('Excess packets:', delta, '\r\n')
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else console.log('Missing packets:', delta, '\r\n')
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console.log('Total packets:', packets + errors)
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console.log('Total errors:', errors + delta)
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console.log('Error rate:', `${((errors + delta) / max * 100).toFixed(2)}%`)
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console.log('==========================')
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