SOURCE

 var suite = new Benchmark.Suite();
    console.log("loading...");

    // add tests
    suite
      .add("RegExp#test", function () {
        /o/.test("Hello World!");
      })
      .add("String#indexOf", function () {
        "Hello World!".indexOf("o") > -1;
      })
      // add listeners
      .on("cycle", function (event) {
        console.log(String(event.target));
      })
      .on("complete", function () {
        console.log("Fastest is " + this.filter("fastest").map("name"));
        console.log("done!");
      })
      .run({ async: true });

请在控制台查看结果