Testing different packages MD5 hashing performance in node.js

md5-benchmarks.js

var mhash = require("mhash").hash
var md5 = require("md5")
var crypto = require('crypto')

var packages = ['mhash','md5','crypto']

md5benchmark(packages)

function md5benchmark(packages) {
  var max = 100000
  var module = packages[0]
  packages.shift()
  var start = new Date().getTime()
  var count = 0
  while (count < max) {
    var string = "testing"+count++
    switch(module) {
      case 'mhash':
        var hash = mhash('md5', string)
        break;
      case 'md5':
        var hash = md5(string)
        break;
      case 'crypto':
        var hash = crypto.createHash('md5').update(string).digest('hex')
        break;
    }

    if (count === max){
      var end = new Date().getTime()
      var elapsed = (end - start) + "ms"
      console.log('Finished ' + max + ' md5 hashes in '+ elapsed + ' using ' + module)
    }
    if (packages.length) {
      md5benchmark(packages)
    }
  }
}

Results on my MacBook Pro (Late 2013, 2.3 GHz Intel Core i7, 16 GB 1600 MHz DDR3)

Finished 100000 md5 hashes in 222ms using crypto
Finished 100000 md5 hashes in 1082ms using md5
Finished 100000 md5 hashes in 1350ms using mhash