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ee781b71b4
Vendors the [blink perf tests](https://chromium.googlesource.com/chromium/src/+/HEAD/third_party/blink/perf_tests/). These perf tests are useful to evaluate the performance of servo. The license that governs the perf tests is included in the folder. Running benchmark cases automatically is left to future work. The update.py script is taken from mozjs and slightly adapted, so we can easily filter (and patch if this should be necessary in the future. Testing: This PR just adds the perf_tests, but does not use or modify them in any way. --------- Signed-off-by: Jonathan Schwender <schwenderjonathan@gmail.com>
58 lines
1.6 KiB
HTML
Vendored
58 lines
1.6 KiB
HTML
Vendored
<!DOCTYPE html>
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<script src="../resources/runner.js"></script>
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<title>Contain layout performance</title>
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<style>
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#listContainer {
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margin: 0 auto;
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width: 600px;
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border: 1px solid blue;
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contain: content;
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}
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.listItem {
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outline: 2px solid green;
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padding: .4em;
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overflow: hidden;
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contain: content;
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}
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</style>
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</head>
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<body>
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<div id="listContainer"></div>
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<script>
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const LOREM_IPSUM = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.";
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let listContainer = null;
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function createListItem() {
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let item = document.createElement("div");
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item.classList.add("listItem");
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item.textContent = LOREM_IPSUM.substr(
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Math.floor(Math.random()*100), Math.floor(Math.random()*200)+150);
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listContainer.appendChild(item);
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}
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var height = 0;
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function runTest() {
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height++;
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listContainer.firstChild.style.height = height + "px";
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if (height > 50)
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height = 0;
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}
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function setupTest() {
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listContainer = document.getElementById("listContainer");
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for (let i = 0; i < 5000; ++i) {
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createListItem();
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}
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PerfTestRunner.forceLayout();
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}
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setupTest();
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PerfTestRunner.measureFrameTime({
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description: "Measures performance of changing the height of a child of a contain:contents object.",
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iterationCount: 50,
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run: runTest
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});
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</script>
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