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nodejs/benchmark/util/text-encoder.js
Joyee Cheung 044021d341
benchmark: stablize encode benchmark
- Increase the number of iteration to 1e6 to reduce flakes. 1e4
  can introduce flakes even when comparing the main branch
  against itself
- Replace the 1024 * 32 length test with 1024 * 8 since it would
  otherwise take too long to complete. Remove the 16 length test
  since it's not too different from 32.
- Check the results of the encoding methods at the end.

PR-URL: https://github.com/nodejs/node/pull/46658
Reviewed-By: Darshan Sen <raisinten@gmail.com>
2023-03-07 22:45:40 +01:00

51 lines
1.2 KiB
JavaScript

'use strict';
const common = require('../common.js');
const assert = require('assert');
const bench = common.createBenchmark(main, {
len: [32, 256, 1024, 1024 * 8],
n: [1e6],
type: ['one-byte-string', 'two-byte-string', 'ascii'],
op: ['encode', 'encodeInto'],
});
function main({ n, op, len, type }) {
const encoder = new TextEncoder();
let base = '';
switch (type) {
case 'ascii':
base = 'a';
break;
case 'one-byte-string':
base = '\xff';
break;
case 'two-byte-string':
base = 'ğ';
break;
}
const input = base.repeat(len);
if (op === 'encode') {
const expected = encoder.encode(input);
let result;
bench.start();
for (let i = 0; i < n; i++)
result = encoder.encode(input);
bench.end(n);
assert.deepStrictEqual(result, expected);
} else {
const expected = new Uint8Array(len);
const subarray = new Uint8Array(len);
const expectedStats = encoder.encodeInto(input, expected);
let result;
bench.start();
for (let i = 0; i < n; i++)
result = encoder.encodeInto(input, subarray);
bench.end(n);
assert.deepStrictEqual(subarray, expected);
assert.deepStrictEqual(result, expectedStats);
}
}