bench-buffer-change.js

const Benchmark = require('benchmark');

var bench = Benchmark({
  fn : function(){
    var a = new Buffer(1024);
  }
});

console.log(String(bench.run()));

// $ ./node benchmark.js
// <Test #1> x 1,196,283 ops/sec ±1.27% (80 runs sampled)
// $ node benchmark.js
// <Test #1> x 1,234,358 ops/sec ±1.67% (76 runs sampled)

// $ ./node benchmark/common.js buffers
buffers/buffer-creation.js
buffers/buffer-creation.js type=fast len=10 n=1024: 3623.97512
buffers/buffer-creation.js type=fast len=1024 n=1024: 1188.15860
buffers/buffer-creation.js type=slow len=10 n=1024: 1128.48789
buffers/buffer-creation.js type=slow len=1024 n=1024: 955.14037

// $ node benchmark/common.js buffers
buffers/buffer-creation.js
buffers/buffer-creation.js type=fast len=10 n=1024: 2818.92383
buffers/buffer-creation.js type=fast len=1024 n=1024: 1313.60635
buffers/buffer-creation.js type=slow len=10 n=1024: 966.95189
buffers/buffer-creation.js type=slow len=1024 n=1024: 891.08745