AsyncMark

A benchmarking library for javascript that supports Promise.

You can try benchmark on the web.

be simple

import { Benchmark } from 'asyncmark';


new Benchmark(function() {
    return new Promise((resolve, reject) => {
        setTimeout(resolve, 100);
    });
}).run().catch(console.error);

be customizable

import { Suite } from 'asyncmark';


const suite = new Suite({
    name: 'ways to find a character',
    beforeEach() {
        this.text = 'hello world';
    },
    parallel: true,
});

suite.add(function() {
    /o/.test(this.text);
});

suite.add({
    name: 'String#indexOf',
    before() {
        console.log('starting String#indexOf...');
    },
    fun() {
        this.text.indexOf('o') > -1;
    },
});

suite.add(new Benchmark({
    name: 'String#match',
    fun() {
        Boolean(this.text.match(/o/));
    },
    after(result) {
        console.log('String#match is done! ' + result);
    },
}));

suite.run()
    .then(results => {
        let min = results[0];
        results.forEach(x => {
            if (min.average > x.average) {
                min = x;
            }
        });
        console.log(min.name + ' is best way!');
    })
    .catch(err => console.error(err));

with unit test

import { Benchmark } from 'asyncmark';


describe('benchmark test', function() {
    it('foobar', async function() {
        const result = await new Benchmark(function() {
            # do_something
        }).run();

        result.assert("<100ms");  # expect faster than 100ms.
    });
});

installation

Node.js

$ npm install asyncmark

ES6

import { Benchmark, Suite } from 'asyncmark';

CommonJS

const AsyncMark = require('asyncmark');

const Benchmark = AsyncMark.Benchmark;
const Suite = AsyncMark.Suite;

Browser

<script src="https://unpkg.com/asyncmark"></script>
<script>
const Benchmark = AsyncMark.Benchmark;
const Suite = AsyncMark.Suite;
</script>