node/benchmark/buffers/buffer-transcode.js
Yagiz Nizipli 7c76fa0aee
src: improve buffer.transcode performance
PR-URL: https://github.com/nodejs/node/pull/54153
Reviewed-By: Daniel Lemire <daniel@lemire.me>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Minwoo Jung <nodecorelab@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
2024-08-20 13:04:30 +00:00

36 lines
944 B
JavaScript

'use strict';
const common = require('../common.js');
const assert = require('node:assert');
const buffer = require('node:buffer');
const hasIntl = !!process.config.variables.v8_enable_i18n_support;
const encodings = ['latin1', 'ascii', 'ucs2', 'utf8'];
if (!hasIntl) {
console.log('Skipping: `transcode` is only available on platforms that support i18n`');
process.exit(0);
}
const bench = common.createBenchmark(main, {
fromEncoding: encodings,
toEncoding: encodings,
length: [1, 10, 1000],
n: [1e5],
}, {
combinationFilter(p) {
return !(p.fromEncoding === 'ucs2' && p.toEncoding === 'utf8');
},
});
function main({ n, fromEncoding, toEncoding, length }) {
const input = Buffer.from('a'.repeat(length));
let out = 0;
bench.start();
for (let i = 0; i < n; i++) {
const dest = buffer.transcode(input, fromEncoding, toEncoding);
out += dest.buffer.byteLength;
}
bench.end(n);
assert.ok(out >= 0);
}