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'use strict';
const fs = require('fs');
const path = require('path');
const { builtinModules } = require('module');
const common = require('../common.js');
const tmpdir = require('../../test/common/tmpdir');
let benchmarkDirectory = path.join(tmpdir.path, 'nodejs-benchmark-module');
// Filter all irregular modules.
const otherModules = builtinModules.filter((name) => !/\/|^_|^sys/.test(name));
const bench = common.createBenchmark(main, {
name: ['', '/', '/index.js'],
dir: ['rel', 'abs'],
files: [5e2],
n: [1, 1e3],
cache: ['true', 'false']
});
function main({ n, name, cache, files, dir }) {
tmpdir.refresh();
fs.mkdirSync(benchmarkDirectory);
for (var i = 0; i <= files; i++) {
fs.mkdirSync(`${benchmarkDirectory}${i}`);
fs.writeFileSync(
`${benchmarkDirectory}${i}/package.json`,
'{"main": "index.js"}'
);
fs.writeFileSync(
`${benchmarkDirectory}${i}/index.js`,
'module.exports = "";'
);
}
if (dir === 'rel')
benchmarkDirectory = path.relative(__dirname, benchmarkDirectory);
measureDir(n, cache === 'true', files, name);
tmpdir.refresh();
}
function measureDir(n, cache, files, name) {
var i;
if (cache) {
for (i = 0; i <= files; i++) {
require(`${benchmarkDirectory}${i}${name}`);
}
}
bench.start();
for (i = 0; i <= files; i++) {
for (var j = 0; j < n; j++)
require(`${benchmarkDirectory}${i}${name}`);
// Pretend mixed input (otherwise the results are less representative due to
// highly specialized code).
require(otherModules[i % otherModules.length]);
}
bench.end(n * files);
}
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