'use strict'; const common = require('../common.js'); const Transform = require('stream').Transform; const inherits = require('util').inherits; const bench = common.createBenchmark(main, { n: [1e6] }); function MyTransform() { Transform.call(this); } inherits(MyTransform, Transform); MyTransform.prototype._transform = function() {}; function main(conf) { const n = +conf.n; bench.start(); for (var i = 0; i < n; ++i) new MyTransform(); bench.end(n); }