This was a small test I created to determine the fastest Cipher (an algorithm used for encryption/decryption) available in NodeJS. There was a huge variation between the best (aes-128-ofb at 305.6934) and the worst (bf-ecb at 1024.3660).

CipherTimer.js

var crypto = require('crypto');
var _      = require('underscore')._;

// Returns elapsed time in milliseconds
function get_elapsed_time(startTime) {
  var diff = process.hrtime(startTime);
  // (seconds to milliseconds) + (nanoseconds to milliseconds)
  return (diff[0] * 1000) + (diff[1] / 1000000);
}

// Simple sorting function for cipher objects
function compareTimes(cipherNTimeA, cipherNTimeB) {
  if (cipherNTimeA.time < cipherNTimeB.time) return -1;
  else if (cipherNTimeA.time > cipherNTimeB.time) return 1;
  else return 0;
}

var key = 'boxerpuppies';
var text = 'Puppies > Kittens';
// Get all the ciphers stored in Node.js
var ciphers = crypto.getCiphers();
var ciphersAndTimes = [];

for (var i = 0; i < ciphers.length; i++) {
  var cipher_algoritm = ciphers[i];
  var loops = 10000;
  var j     = 0;
  var startTime = process.hrtime();

  try {
      for (; j < loops; j++) {
      var cipher = crypto.createCipher(cipher_algoritm, key);
      var encrypted = cipher.update(text, 'utf8', 'hex') + cipher.final('hex');

      var decipher = crypto.createDecipher(cipher_algoritm, key);
      var decrypted = decipher.update(encrypted, 'hex', 'utf8') + decipher.final('utf8');
    }

    ciphersAndTimes.push({'name': cipher_algoritm, 'time': get_elapsed_time(startTime)});
  }
  catch(e) {
    // Some ciphers can't run on my machine. Dunno why
  }
}

ciphersAndTimes.sort(compareTimes);

for (var i = 0; i < ciphersAndTimes.length; i++) {
  console.log(ciphersAndTimes[i].time.toFixed(4) + ' ms to complete with Cipher ' + ciphersAndTimes[i].name);
}

Results off my Macbook PRO

305.6934 ms to complete with Cipher aes-128-ofb
306.0972 ms to complete with Cipher aes-256-ctr
306.9010 ms to complete with Cipher rc4
308.5980 ms to complete with Cipher rc4-hmac-md5
308.7294 ms to complete with Cipher aes-256-cfb
308.8647 ms to complete with Cipher aes-192-ctr
309.2756 ms to complete with Cipher idea-cfb
310.3835 ms to complete with Cipher aes-192-cfb
311.3220 ms to complete with Cipher des-ofb
312.9775 ms to complete with Cipher aes-128-cfb8
314.2114 ms to complete with Cipher camellia-128-cfb
314.8514 ms to complete with Cipher camellia-256-cfb
315.9214 ms to complete with Cipher camellia-256-ofb
317.2570 ms to complete with Cipher aes-128-ecb
318.0120 ms to complete with Cipher aes-256-xts
320.6958 ms to complete with Cipher cast5-cfb
321.8985 ms to complete with Cipher aes-128-cfb
322.0991 ms to complete with Cipher seed-ofb
322.1443 ms to complete with Cipher aes-256-ecb
322.1829 ms to complete with Cipher aes-256-cfb8
322.9140 ms to complete with Cipher seed-cfb
323.1760 ms to complete with Cipher rc2-ofb
323.4281 ms to complete with Cipher rc2-cfb
324.9066 ms to complete with Cipher aes-256-cbc
325.8192 ms to complete with Cipher aes-192-ecb
326.2461 ms to complete with Cipher aes128
326.3878 ms to complete with Cipher camellia-128-ofb
326.9485 ms to complete with Cipher aes-192-ofb
327.9205 ms to complete with Cipher aes-192-cbc
328.0412 ms to complete with Cipher aes-128-cbc
330.2278 ms to complete with Cipher aes-256-ofb
330.6721 ms to complete with Cipher idea-ofb
331.4438 ms to complete with Cipher camellia-256-ecb
332.2577 ms to complete with Cipher rc4-40
332.4009 ms to complete with Cipher des-cbc
333.2247 ms to complete with Cipher des-cfb
333.8402 ms to complete with Cipher des
334.0151 ms to complete with Cipher cast5-ecb
334.9739 ms to complete with Cipher aes-128-xts
336.3573 ms to complete with Cipher camellia-192-ecb
337.3718 ms to complete with Cipher desx-cbc
337.4112 ms to complete with Cipher aes-128-ctr
338.0858 ms to complete with Cipher camellia-256-cbc
338.2789 ms to complete with Cipher cast-cbc
339.3415 ms to complete with Cipher des-ede3-cfb
340.1954 ms to complete with Cipher camellia-192-ofb
340.9094 ms to complete with Cipher cast
340.9842 ms to complete with Cipher camellia192
341.5286 ms to complete with Cipher cast5-ofb
342.0115 ms to complete with Cipher rc2-cbc
342.4925 ms to complete with Cipher rc2
343.8533 ms to complete with Cipher aes-192-cfb8
344.1049 ms to complete with Cipher rc2-40-cbc
344.1054 ms to complete with Cipher des-ede-ofb
345.2359 ms to complete with Cipher seed
346.0038 ms to complete with Cipher camellia-192-cbc
346.1149 ms to complete with Cipher camellia-128-cfb8
346.2682 ms to complete with Cipher aes256
346.5707 ms to complete with Cipher des-cfb8
347.8600 ms to complete with Cipher seed-ecb
350.7369 ms to complete with Cipher des-ede
351.2504 ms to complete with Cipher camellia-128-ecb
354.7003 ms to complete with Cipher des-ecb
356.5764 ms to complete with Cipher aes192
356.9626 ms to complete with Cipher idea-ecb
357.2245 ms to complete with Cipher camellia-256-cfb8
358.1344 ms to complete with Cipher rc2-ecb
359.3361 ms to complete with Cipher camellia-128-cbc
359.8418 ms to complete with Cipher camellia-192-cfb8
361.0383 ms to complete with Cipher camellia256
361.1736 ms to complete with Cipher des-ede-cbc
361.3440 ms to complete with Cipher cast5-cbc
361.7156 ms to complete with Cipher desx
361.8896 ms to complete with Cipher rc2-64-cbc
361.9439 ms to complete with Cipher des-ede3
363.1647 ms to complete with Cipher des-ede3-ofb
363.6036 ms to complete with Cipher des3
364.1484 ms to complete with Cipher des-ede-cfb
364.1746 ms to complete with Cipher idea
364.4851 ms to complete with Cipher camellia128
364.6573 ms to complete with Cipher CAST-cbc
366.8511 ms to complete with Cipher camellia-192-cfb
370.6481 ms to complete with Cipher seed-cbc
383.5571 ms to complete with Cipher des-ede3-cbc
387.0772 ms to complete with Cipher idea-cbc
427.6058 ms to complete with Cipher des-ede3-cfb8
436.6427 ms to complete with Cipher des-ede3-cfb1
447.0983 ms to complete with Cipher aes-128-cfb1
467.0500 ms to complete with Cipher aes-192-cfb1
500.1223 ms to complete with Cipher aes-256-cfb1
655.9387 ms to complete with Cipher camellia-128-cfb1
670.9988 ms to complete with Cipher des-cfb1
756.9891 ms to complete with Cipher camellia-192-cfb1
761.0961 ms to complete with Cipher camellia-256-cfb1
977.7205 ms to complete with Cipher bf-cfb
1003.6622 ms to complete with Cipher blowfish
1003.8480 ms to complete with Cipher bf
1015.1084 ms to complete with Cipher bf-ofb
1016.6883 ms to complete with Cipher bf-cbc
1024.3660 ms to complete with Cipher bf-ecb

This has been outdated with the current IV needed in crypto library.