text: 'use strict';
  
  var source = new Buffer(100),
      dest = new Buffer(100), i, j, k, tmp, count = 1000000, bytes = 100;
  
  for (i = 99 ; i >= 0 ; i--) {
      source[i] = 120;
  }
  
  var str = 'This is a nice String.',
      buf = new Buffer('This is a lovely Buffer.');
  
  var start = new Date();
  for (i = count * 100; i > 0 ; i--) {
      if (Buffer.isBuffer(str)) {}
  }
  var end = new Date();
  console.log('Buffer.isBuffer(str) ' + (end - start) + ' ms');
  
  var start = new Date();
  for (i = count * 100; i > 0 ; i--) {
      if (Buffer.isBuffer(buf)) {}
  }
  var end = new Date();
  console.log('Buffer.isBuffer(buf) ' + (end - start) + ' ms');
  
  var start = new Date();
  for (i = count * 100; i > 0 ; i--) {
      if (str instanceof Buffer) {}
  }
  var end = new Date();
  console.log('str instanceof Buffer ' + (end - start) + ' ms');
  
  var start = new Date();
  for (i = count * 100; i > 0 ; i--) {
      if (buf instanceof Buffer) {}
  }
  var end = new Date();
  console.log('buf instanceof Buffer ' + (end - start) + ' ms');
  
  for (i = bytes ; i > 0 ; i --) {
      var start = new Date();
      for (j = count ; j > 0; j--) {
          tmp = source.toString('ascii', 0, bytes);
      }
      var end = new Date();
      console.log('toString() ' + i + ' bytes ' + (end - start) + ' ms');
  }
  
  for (i = bytes ; i > 0 ; i --) {
      var start = new Date();
      for (j = count ; j > 0; j--) {
          tmp = '';
          for (k = 0; k <= i ; k++) {
              tmp += String.fromCharCode(source[k]);
          }
      }
      var end = new Date();
      console.log('manual string ' + i + ' bytes ' + (end - start) + ' ms');
  }
  
  for (i = bytes ; i > 0 ; i--) {
      var start = new Date();
      for (j = count ; j > 0 ; j--) {
          for (k = i ; k > 0 ; k--) {
              dest[k] = source[k];
          }
      }
      var end = new Date();
      console.log('Manual copy ' + i + ' bytes ' + (end - start) + ' ms');
  }
  
  for (i = bytes ; i > 0 ; i--) {
      var start = new Date();
      for (j = count ; j > 0 ; j--) {
          for (k = i ; k > 0 ; k--) {
              dest[k] = 120;
          }
      }
      var end = new Date();
      console.log('Direct assignment ' + i + ' bytes ' + (end - start) + ' ms');
  }
  
  for (i = bytes ; i > 0 ; i--) {
      var start = new Date();
      for (j = count ; j > 0 ; j--) {
          source.copy(dest, 0, 0, i);
      }
      var end = new Date();
      console.log('Buffer.copy() ' + i + ' bytes ' + (end - start) + ' ms');
  }
  