micro-bmark

Benchmark your node.js projects with nanosecond resolution.

• Utilizes node.js process.hrtime for 1ns resolution
• Colorful formatting with nice units
• No dependencies, only ~150 lines of code: as lightweight as possible to not interfere with benchmarked code
• No code for estimating running time - specify samples manually
• Shows relative margin of error, min/max runs only if it's high

Usage

npm install --save-dev micro-bmark

import * as bench from 'micro-bmark';
await bench.mark('printing', () => Promise.resolve(0));

const { mark, compare, run } = bench; // Or, use as such
run(async () => {
  await mark('base', () => Promise.resolve(1));
  await mark('sqrt', 10000, () => Math.sqrt(2));
  await compare('math', 5000, {
    lib1: () => Math.sqrt(2),
    lib2: () => Math.sqrt(3)
  });
  // bench.utils.logMem(); // Log current RAM
  // console.log(bench.utils.getTime(), bench.utils.formatD(bench.utils.getTime())); // Get current time in nanoseconds
});

Example output:

getPublicKey() x 6,072 ops/sec @ 164μs/op ± 8.22% (min: 143μs, max: 17ms)
sign x 4,980 ops/sec @ 200μs/op
signSync x 4,671 ops/sec @ 214μs/op
verify x 969 ops/sec @ 1ms/op
recoverPublicKey x 890 ops/sec @ 1ms/op
getSharedSecret aka ecdh x 585 ops/sec @ 1ms/op

• await bench.run(args?, callback): Runs bunch of suites. Not required
• await bench.mark(label?, samples?, callback): Measures callback (can be async) samples times
• await bench.compare(label, samples, map): mark, but compares runs between object values
  • map: { a: () => {}, b: () => {} }
• bench.utils.logMem(): undefined: Logs memory usage
• bench.utils.getTime(): bigint: Returns current time in bigint.

License

MIT License

Copyright (c) 2020 Paul Miller (https://paulmillr.com), (c) 2010-2016 Mathias Bynens, John-David Dalton, (c) Robert Kieffer from JSLitmus.js