How to do load testing for websockets [closed]

Question

We are building a group chat feature, which is using websockets. We want to test how many connections our current infrastucture can support.

Basically it boils down to how to simulate a websocket.

Answer 1

I can give you a suggestion from my recent experience. You can connect webkit based Phantom virtual clients to your chat server and measure the resource usage (i.e CPU, memory, may be using a shell script or another utility or you can profile your service )

var system = require('system'); var page = require('webpage').create(); page.viewportSize = { width: 1024, height: 768 };  page.open("<URL to chat server service>", function (status) {     // Check for page load success     if (status !== "success") {         console.log("Unable to connect");         phantom.exit();     } else {         console.log("Client connected  ");         //after connecting you may extract further information, taking screenshots etc. refer the phantom.js API for further details     } }); 

Do you use any framework like socket IO for websocket communication ?

Answer 2

Several years have passed, there is another new tool to do load testing for Websockets: https://github.com/observing/thor