'use strict'; const common = require('../common'); const { Readable, Writable } = require('stream'); const bench = common.createBenchmark(main, { n: [5e6] }); function main({ n }) { const b = Buffer.alloc(1024); const r = new Readable(); const w = new Writable(); var i = 0; r._read = () => r.push(i++ === n ? null : b); w._write = (data, enc, cb) => cb(); bench.start(); r.pipe(w); w.on('finish', () => bench.end(n)); }