1<!DOCTYPE html> 2<body> 3<script src="../resources/runner.js"></script> 4<script> 5PerfTestRunner.measureTime({run: function() { 6 (function() { 7 for (var i = 0; i < 500000; i++) 8 document.createElement("div").appendChild(document.createElement("span")); 9 })(); 10 PerfTestRunner.gc(); 11}}); 12</script> 13</body> 14