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benchmark/fs/bench-writeFileSync.js
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CanadaHonk
fs: add c++ fast path for writeFileSync utf8
27 ноя 2023, 03:01
Не верифицирован
27 ноя 2023, 03:01
4466dee
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'use strict'; const common = require('../common.js'); const fs = require('fs'); const tmpdir = require('../../test/common/tmpdir'); tmpdir.refresh(); // Some variants are commented out as they do not show a change and just slow const bench = common.createBenchmark(main, { encoding: ['utf8'], useFd: ['true', 'false'], length: [1024, 102400, 1024 * 1024], // useBuffer: ['true', 'false'], useBuffer: ['false'], // func: ['appendFile', 'writeFile'], func: ['writeFile'], n: [1e3], }); function main({ n, func, encoding, length, useFd, useBuffer }) { tmpdir.refresh(); const enc = encoding === 'undefined' ? undefined : encoding; const path = tmpdir.resolve(`.writefilesync-file-${Date.now()}`); useFd = useFd === 'true'; const file = useFd ? fs.openSync(path, 'w') : path; let data = 'a'.repeat(length); if (useBuffer === 'true') data = Buffer.from(data, encoding); const fn = fs[func + 'Sync']; bench.start(); for (let i = 0; i < n; ++i) { fn(file, data, enc); } bench.end(n); if (useFd) fs.closeSync(file); }