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websocket performance test using ws
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| const Promise = require('bluebird') | |
| const WebSocket = require('ws') | |
| const nbr = 100 | |
| const now = () => { | |
| return new Date().getTime() | |
| } | |
| function Client(id) { | |
| this.ws = null | |
| this.start = function() { | |
| const that = this | |
| this.ws = new WebSocket('ws://localhost:8080') | |
| this.ws.on('open', function() { | |
| console.log(`client ${id} connected`) | |
| that.send() | |
| that.ws.on('message', function(data) { | |
| console.log('received from server: ', data) | |
| setTimeout(function() { | |
| that.send() | |
| }, Math.random()*1000) | |
| }) | |
| }) | |
| } | |
| this.send = function() { | |
| const data = { | |
| move: { | |
| x: Math.random(), | |
| y: Math.random() | |
| }, | |
| start: now() | |
| } | |
| this.ws.send(JSON.stringify(data)) | |
| } | |
| } | |
| const ids = Array.from(new Array(nbr), (x,i) => i) | |
| Promise.map(ids, (id) => { | |
| const c = new Client(id) | |
| c.start() | |
| return Promise.resolve() | |
| }).then(() => { | |
| console.log('all up') | |
| }) |
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| const WebSocket = require('ws') | |
| const wss = new WebSocket.Server({ | |
| port: 8080 | |
| }) | |
| const now = () => { | |
| return new Date().getTime() | |
| } | |
| wss.on('connection', (ws) => { | |
| ws.on('message', function(data) { | |
| var msg=JSON.parse(data) | |
| msg.took=now() - msg.start | |
| ws.send(JSON.stringify(msg)) | |
| }) | |
| }) |
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