gistfile1.js

var Benchmark = require('benchmark');

// this outputs nothing
new Benchmark.Suite()
  .add("TestBuffer", {
    'setup': function() {
      this.buffer = new Buffer();
    },
    'fn': function() {
      console.log(this.buffer);
    }
  })
  .run();

// this outputs tons of integers
new Benchmark.Suite()
  .add("TestInt", {
    'setup': function() {
      this.value = 10;
    },
    'fn': function() {
      console.log(this.value);
    }
  })
  .run();