benchmark.js

const crypto = require("crypto");

getHash = (content) => crypto.createHash("sha256")
  .update(content)
  .digest("hex");

var start = Date.now();

// A million hashes take ~3000ms on my Intel(R) Core(TM) i7-5500U CPU @ 2.40GHz.
// You might want to increase this value.
for (var i = 0; i < 1000000; i++)
  getHash("Yeah, Well, That's Just, Like, Your Opinion, Man.");

console.log(Date.now() - start);