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benchmark/http/end-vs-write-end.js
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Antoine du Hamel
benchmark: add trailing commas in `benchmark/http`
12 фев 2023, 19:32
Не верифицирован
12 фев 2023, 19:32
5c74108
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// When calling .end(buffer) right away, this triggers a "hot path" // optimization in http.js, to avoid an extra write call. // // However, the overhead of copying a large buffer is higher than // the overhead of an extra write() call, so the hot path was not // always as hot as it could be. // // Verify that our assumptions are valid. 'use strict'; const common = require('../common.js'); const bench = common.createBenchmark(main, { type: ['asc', 'utf', 'buf'], len: [64 * 1024, 128 * 1024, 256 * 1024, 1024 * 1024], c: [100], method: ['write', 'end'], duration: 5, }); function main({ len, type, method, c, duration }) { const http = require('http'); let chunk; switch (type) { case 'buf': chunk = Buffer.alloc(len, 'x'); break; case 'utf': chunk = 'ü'.repeat(len / 2); break; case 'asc': chunk = 'a'.repeat(len); break; } function write(res) { res.write(chunk); res.end(); } function end(res) { res.end(chunk); } const fn = method === 'write' ? write : end; const server = http.createServer((req, res) => { fn(res); }); server.listen(0, () => { bench.http({ connections: c, duration, port: server.address().port, }, () => { server.close(); }); }); }