add the magic <meta> tag for IE8+9

[dygraphs.git] / tests / perf.html
diff --git a/tests/perf.html b/tests/perf.html

index 6515dee..7c33a95 100644 (file)
--- a/tests/perf.html
+++ b/tests/perf.html
@@ -1,10 +1,13 @@
+<!DOCTYPE html>
  <html>
    <head>
+    <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7; IE=EmulateIE9">
      <title>perf</title>
      <!--[if IE]>
-    <script type="text/javascript" src="excanvas.js"></script>
+    <script type="text/javascript" src="../excanvas.js"></script>
      <![endif]-->
-    <script type="text/javascript" src="../dygraph-combined.js"></script>
+    <script type="text/javascript" src="../strftime/strftime-min.js"></script>
+    <script type="text/javascript" src="../rgbcolor/rgbcolor.js"></script>
      <script type="text/javascript" src="../dygraph-canvas.js"></script>
      <script type="text/javascript" src="../dygraph.js"></script>
      <script type="text/javascript" src="data.js"></script>
@@ -14,12 +17,15 @@
      <div id="status"></div>
  
      <script type="text/javascript">
-      var num_tests = 100;
+      var num_tests = 250;
        var times = [];
        var start = new Date;
  
        for (var i = 0; i < num_tests; i++) {
          var this_start = new Date;
+        // Calling destroy() here reduces the memory usage in Chrome by
+        // ~1.2MB/instantiation.
+        if (i) g.destroy();
          g = new Dygraph(
                document.getElementById("div_g"),
                NoisyData, {
@@ -34,7 +40,7 @@
        var end = new Date;
  
        document.getElementById("status").innerHTML = "Elapsed time: " + (end - start)/num_tests + " ms/instantiation";
-      new Dygraph(
+      perf = new Dygraph(
          document.getElementById("div_g"),
          times, {
            labels: [ "Iteration", "Time (ms)" ]