vtils/dev/runBenchmark.js

一个面向业务的 JavaScript/TypeScript 实用程序库。

import Table from 'cli-table3';
import { formatNumber, Suite } from 'benchmark';
export function runBenchmark(suites, options) {
  const table = new Table({
    head: ['name', 'ops/sec'],
    colAligns: ['left', 'right']
  });
  const suite = new Suite();
  let expectFastestName;
  for (let name of Object.keys(suites)) {
    const fn = suites[name];
    if (name.endsWith('!fastest')) {
      name = name.replace(/!fastest$/, '');
      expectFastestName = name;
    }
    suite.add(name, fn);
  }
  suite.on('cycle', function (event) {
    table.push([event.target.name, formatNumber(Math.round(event.target.hz))]);
  });
  suite.on('complete', function () {
    const actualFastestName = this.filter('fastest').map('name')[0];
    if (expectFastestName != null && expectFastestName !== actualFastestName) {
      throw new Error(`Expect fastest is ${expectFastestName}, actual fastest is ${actualFastestName}.`);
    }
    console.log(table.sort((a, b) => b[1].replace(/,/, '') - a[1].replace(/,/, '')).toString());
  });
  suite.run(options);
}