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<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="test_slam_layout.css">
</head>
<body><div id="ohhi"></div></body>
<script>
var divs = document.getElementsByTagName("div");
var div = divs[0];
var count = 1000;
var start = new Date();
for (var i = 0; i < count; i++) {
if (i % 2 == 0)
div.setAttribute('id', 'ohhi');
else
div.setAttribute('id', 'mark');
div.getBoundingClientRect();
}
var stop = new Date();
window.alert((stop - start) / count * 1e6 + " ns/layout");
window.close();
</script>
</html>
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