EventsDispatching.html | Explore in Territory

<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src="../resources/runner.js"></script>
</head>
<body>
<script>
function appendBranchWithDepth(depth)
{
    var node = document.body;
    while (depth) {
        var child = document.createElement('div');
        node.appendChild(child);
        node = child;
        depth--;
    }
    return node;
}

function appendChildren(root, childCount)
{
    while (childCount) {
        root.appendChild(document.createElement('div'));
        childCount--;
    }
}

// This makes a tree of depth 50 with 500 leaves.
var tipOfBranch = appendBranchWithDepth(50);
appendChildren(tipOfBranch, 500);
var customEvent = new Event('foo');

function run()
{
    for (var node = tipOfBranch.firstChild; node; node = node.nextSibling)
      node.dispatchEvent(customEvent);
}

PerfTestRunner.measureRunsPerSecond({
    description: "Measure events dispatching",
    run: run
});
</script>
</body>
</html>

chromium/third_party/blink/perf_tests/events/EventsDispatching.html