| <!DOCTYPE html> |
| <style> |
| body { |
| display: flex; |
| flex-wrap: wrap; |
| } |
| div { |
| height: 1px; |
| width: 200px; |
| position: relative; |
| background-color: green; |
| } |
| </style> |
| <body> |
| <script src="../resources/runner.js"></script> |
| <script> |
| var count = 5000; |
| function setupTest() { |
| for (var i = 0; i < count; ++i) |
| document.body.appendChild(document.createElement("div")); |
| } |
| |
| setupTest(); |
| |
| function test() { |
| for (var i = 0; i < 1000; i++) { |
| var x = 600 * Math.random(); |
| var y = 400 * Math.random(); |
| var el = document.elementFromPoint(x, y); |
| } |
| } |
| |
| PerfTestRunner.measureRunsPerSecond({ |
| description: "Measures hit test performance with many layers.", |
| run: test |
| }); |
| </script> |
