4 <script src="../resources/runner.js"></script>
6 for (var i = 0; i < 1000; i++) {
7 var div = document.createElement("div");
10 document.body.appendChild(div);
13 var h1 = document.createElement("h1");
15 h1.className = "class";
16 document.body.appendChild(h1);
18 PerfTestRunner.runPerSecond({
19 description: "This benchmark tests querySelector() for an element that appears near the tail of the document",
21 for (var i = 0; i < 100; i++) {
22 document.querySelector("h1");
23 document.querySelector("#id");
24 document.querySelector(".class");