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| 1 | + 'use strict'; | ||
| 2 | + const common = require('../common.js'); | ||
| 3 | + | ||
| 4 | + const { | ||
| 5 | + PassThrough, | ||
| 6 | + Readable, | ||
| 7 | + Writable, | ||
| 8 | + compose, | ||
| 9 | + } = require('node:stream'); | ||
| 10 | + | ||
| 11 | + const bench = common.createBenchmark(main, { | ||
| 12 | + n: [1e3], | ||
| 13 | + }); | ||
| 14 | + | ||
| 15 | + function main({ n }) { | ||
| 16 | + const cachedPassThroughs = []; | ||
| 17 | + const cachedReadables = []; | ||
| 18 | + const cachedWritables = []; | ||
| 19 | + | ||
| 20 | + for (let i = 0; i < n; i++) { | ||
| 21 | + const numberOfPassThroughs = 100; | ||
| 22 | + const passThroughs = []; | ||
| 23 | + | ||
| 24 | + for (let i = 0; i < numberOfPassThroughs; i++) { | ||
| 25 | + passThroughs.push(new PassThrough()); | ||
| 26 | + } | ||
| 27 | + | ||
| 28 | + const readable = Readable.from(['hello', 'world']); | ||
| 29 | + const writable = new Writable({ objectMode: true, write: (chunk, encoding, cb) => cb() }); | ||
| 30 | + | ||
| 31 | + cachedPassThroughs.push(passThroughs); | ||
| 32 | + cachedReadables.push(readable); | ||
| 33 | + cachedWritables.push(writable); | ||
| 34 | + } | ||
| 35 | + | ||
| 36 | + bench.start(); | ||
| 37 | + for (let i = 0; i < n; i++) { | ||
| 38 | + const composed = compose(cachedReadables[i], ...cachedPassThroughs[i], cachedWritables[i]); | ||
| 39 | + composed.end(); | ||
| 40 | + } | ||
| 41 | + bench.end(n); | ||
| 42 | + } | ||
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