benchmark hashes

hashes.js

'use strict'

var crypto = require('crypto')
var promise = Promise.resolve()

var data = []

for (var i = 0; i < 1e5; ++i) {
  promise = promise.then(function () {
    return new Promise(function (resolve, reject) {
      crypto.randomBytes(256, (err, buf) => {
        if (err) {
          return reject(err)
        }
        data.push(buf.toString('base64'))
        return resolve()
      })
    })
  })
}

var hasher

promise.then(function () {
  ['md4', 'md5', 'sha1', 'sha256'].forEach(function (h) {
    console.log(h)
    for (var j = 1; j < 10; ++j) {
      var start = process.hrtime()
      for (var i = 0; i < data.length; ++i) {
        hasher = crypto.createHash(h)
        hasher.update(data[i])
        hasher.digest('hex')
      }
      console.log(process.hrtime(start))
    }
  })
})