node/benchmark/buffers/buffer-compare.js

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
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// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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var common = require('../common.js');

var bench = common.createBenchmark(main, {
  size: [16, 512, 1024, 4096, 16386],
  millions: [1]
});

function main(conf) {
  var iter = (conf.millions >>> 0) * 1e6;
  var size = (conf.size >>> 0);
  var b0 = new Buffer(size).fill('a');
  var b1 = new Buffer(size).fill('a');

  b1[size - 1] = 'b'.charCodeAt(0);

  bench.start();
  for (var i = 0; i < iter; i++) {
    Buffer.compare(b0, b1);
  }
  bench.end(iter / 1e6);
}