fixed-height-with-spanner-and-nested-tables.html

<!DOCTYPE html>
<script src="../../resources/runner.js"></script>
<style>
    #target div { display:table; } /* Just to slow it down a little. */
</style>
<pre id="log"></pre>
<!-- This multicol container has 3 columns. It contains a row of columns, a spanner, and another
     row of columns. Height is fixed and column-fill is auto, so we only need to balance the row
     that precedes the spanner. That first row has 12 equal pieces of content, so it should be
     possible to balance it perfectly and easily (i.e. it should only need 2 layout passes). It
     also contains some deeply nested tables, to slow down performance. -->
<div id="target" style="display:none; -webkit-columns:3; column-fill:auto; width:40em; height:41.5em; line-height:2em;">
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div style="-webkit-column-span:all;">spanner.</div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
    <div><div><div><div><div><div><div><div>content content</div></div></div></div></div></div></div></div>
</div>
<script>
    var target = document.getElementById("target");
    var style = target.style;

    function test() {
        style.display = "block";
        PerfTestRunner.forceLayout();
        style.display = "none";
        PerfTestRunner.forceLayout();
    }

    PerfTestRunner.measureRunsPerSecond({
        description: "Measures performance of multicol layout when not balancing columns.",
        run: test
    });
</script>
chromium/third_party/blink/perf_tests/layout/multicol/fixed-height-with-spanner-and-nested-tables.html
