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javascriptweb-worker

Create a dynamic number of web workers Javascript

I am working on a performance heavy app, where the workload can easily be subdivided into web workers.

However because of different consumer hardware I won't know the optimal number of workers until runtime. At runtime I can find the optimal number using navigator.hardwareConcurrency.

My problem is I can't think of a way to spawn an unknown number of workers. If I wanted to spawn 3 web workers for example I could do this:

var worker0 = new Worker("workerScript.js");
var worker1 = new Worker("workerScript.js");
var worker2 = new Worker("workerScript.js");

Is there a way to spawn and listen for events from "x" number of workers?

Solution

  • There's an example in MDN

    let workerList = [];

for (let i = 0; i < window.navigator.hardwareConcurrency; i++) {
  let newWorker = {
    worker: new Worker('cpuworker.js'),
    inUse: false
  };
  workerList.push(newWorker);
}