nodejs/benchmark/buffers/buffer-base64-encode.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
// without limitation the rights to use, copy, modify, merge, publish,
// 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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'use strict';
const common = require('../common.js');

const bench = common.createBenchmark(main, {
  len: [64 * 1024 * 1024],
  n: [32]
});

function main(conf) {
  const n = +conf.n;
  const len = +conf.len;
  const b = Buffer.allocUnsafe(len);
  let s = '';
  let i;
  for (i = 0; i < 256; ++i) s += String.fromCharCode(i);
  for (i = 0; i < len; i += 256) b.write(s, i, 256, 'ascii');
  bench.start();
  for (i = 0; i < n; ++i) b.toString('base64');
  bench.end(n);
}