buf-mem-alloc-times.js

'use strict';

const SlowBuffer = require('buffer').SlowBuffer;
const ITER = 1e7;
const SIZE = 65536;
let t = process.hrtime()

for (let i = 0; i < ITER; i++) {
  new SlowBuffer(SIZE);
}

t = process.hrtime(t);
console.log(((t[0] * 1e9 + t[1]) / ITER).toFixed(1) + ' ns/op');


/**
 *   Benchmark Results SlowBuffer
 *
 *  node 0.12.7
 *
 *    SIZE          TIME
 *       1           466
 *     256           653
 *    1024           811
 *    4096           919
 *   16384           985
 *   65536          1266
 *  262144          2814
 *
 *  iojs 2.5.0
 *
 *    SIZE          TIME
 *       1           463
 *     256           636
 *    1024           750
 *    4096           885
 *   16384          1087
 *   65536          1778
 *  262144          4930
 *
 *  iojs 3.1.0
 *
 *    SIZE          TIME
 *       1          1038
 *     256          1090
 *    1024          1214
 *    4096          1706
 *   16384          1937
 *   65536          3132
 *  262144          6146
 *
 */