mirror of https://github.com/coder/code-server.git
49 lines
1.6 KiB
TypeScript
49 lines
1.6 KiB
TypeScript
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import * as benchmark from "benchmark";
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import { performance } from "perf_hooks";
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import { TestCaseArray, isMac } from "./requirefs.util";
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const files = [
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"./individual.js", "./chained-1", "./subfolder",
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"./subfolder/goingUp", "./nodeResolve",
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];
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const toBench = new TestCaseArray();
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// Limits the amount of time taken for each test,
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// but increases uncertainty.
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benchmark.options.maxTime = 0.5;
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let suite = new benchmark.Suite();
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let _start = 0;
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const addMany = (names: string[]): benchmark.Suite => {
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for (let name of names) {
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for (let file of files) {
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suite = suite.add(`${name} -> ${file}`, async () => {
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let rfs = await toBench.byName(name).rfs;
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rfs.require(file);
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});
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}
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}
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_start = performance.now();
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return suite;
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}
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// Returns mean time per operation, in microseconds (10^-6s).
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const mean = (c: any): number => {
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return Number((c.stats.mean * 10e+5).toFixed(5));
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};
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// Swap out the tar command for gtar, when on MacOS.
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let testNames = ["zip", "bsdtar", isMac ? "gtar" : "tar"];
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addMany(testNames).on("cycle", (event: benchmark.Event) => {
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console.log(String(event.target) + ` (~${mean(event.target)} μs/op)`);
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}).on("complete", () => {
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const slowest = suite.filter("slowest").shift();
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const fastest = suite.filter("fastest").shift();
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console.log(`===\nFastest is ${fastest.name} with ~${mean(fastest)} μs/op`);
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if (slowest.name !== fastest.name) {
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console.log(`Slowest is ${slowest.name} with ~${mean(slowest)} μs/op`);
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}
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const d = ((performance.now() - _start)/1000).toFixed(2);
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console.log(`Benchmark took ${d} s`);
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})
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.run({ "async": true });
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