| <!DOCTYPE html> |
| <div id="container" style="width:500px;"> |
| <div id="stf" style="width:fit-content;"></div> |
| </div> |
| <script src="../resources/runner.js"></script> |
| <script> |
| var stf = document.getElementById("stf"); |
| |
| for (var i = 0; i < 10000; i++) { |
| var child = document.createElement("div"); |
| child.style.width = "100px"; |
| child.style.height = "1px"; |
| stf.appendChild(child); |
| } |
| |
| var container = document.getElementById("container"); |
| var style = container.style; |
| |
| function test() { |
| style.width = "400px"; |
| PerfTestRunner.forceLayout(); |
| style.width = "500px"; |
| PerfTestRunner.forceLayout(); |
| } |
| |
| PerfTestRunner.measureRunsPerSecond({ |
| description: "Measures performance of relayout of a container with many auto fit-content children.", |
| run: test |
| }); |
| </script> |
| </html> |
