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500 + 1000 already cover the curve. 2000 doesn’t add new qualitative insight — it just extends the same curve further down (another ~3–4× slowdown). According to https://github.com/nodejs/performance/issues/186 this benchmark takes one minute to conclude a single run. This should fix it. PR-URL: https://github.com/nodejs/node/pull/59588 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Chemi Atlow <chemi@atlow.co.il>
44 lines
1.1 KiB
JavaScript
44 lines
1.1 KiB
JavaScript
'use strict';
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const util = require('util');
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const common = require('../common');
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const bench = common.createBenchmark(main, {
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n: [1e3],
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length: [500, 1000],
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scenario: ['identical', 'small-diff', 'medium-diff', 'large-diff'],
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});
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function main({ n, length, scenario }) {
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const actual = Array.from({ length }, (_, i) => `${i}`);
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let expected;
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switch (scenario) {
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case 'identical': // 0% difference
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expected = Array.from({ length }, (_, i) => `${i}`);
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break;
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case 'small-diff': // ~5% difference
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expected = Array.from({ length }, (_, i) => {
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return Math.random() < 0.05 ? `modified-${i}` : `${i}`;
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});
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break;
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case 'medium-diff': // ~25% difference
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expected = Array.from({ length }, (_, i) => {
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return Math.random() < 0.25 ? `modified-${i}` : `${i}`;
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});
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break;
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case 'large-diff': // ~100% difference
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expected = Array.from({ length }, (_, i) => `modified-${i}`);
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break;
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}
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bench.start();
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for (let i = 0; i < n; i++) {
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util.diff(actual, expected);
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}
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bench.end(n);
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}
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