4 <meta http-equiv=
"X-UA-Compatible" content=
"IE=EmulateIE7; IE=EmulateIE9">
5 <title>Benchmarking for Plots with Many Points
</title>
7 <script type=
"text/javascript" src=
"../excanvas.js"></script>
9 <script type=
"text/javascript" src=
"../strftime/strftime-min.js"></script>
10 <script type=
"text/javascript" src=
"../rgbcolor/rgbcolor.js"></script>
11 <script type=
"text/javascript" src=
"../dygraph-canvas.js"></script>
12 <script type=
"text/javascript" src=
"../dygraph.js"></script>
15 <p>Plot which can be easily generated with different numbers of points for
16 benchmarking/profiling and improving performance of dygraphs.
</p>
18 <input type=
"text" id=
"num_points_input" size=
"20"></p>
20 <input type=
"text" id=
"num_series_input" size=
"20"></p>
21 <p>Roll period (in points):
22 <input type=
"text" id=
"roll_period_input" size=
"20"></p>
24 <input type=
"text" id=
"repetitions" size=
"20"></p>
26 <input type=
"button" value=
"Go!" onclick=
"updatePlot();">
30 <div id=
"message"></div>
31 <div id=
"metrics"></div>
32 <div id=
"metaperformance"></div>
34 <script type=
"text/javascript">
38 updatePlot = function() {
39 document.getElementById('message').innerHTML =
"";
40 var plotDiv = document.getElementById('plot');
41 plotDiv.innerHTML = 'Redrawing...';
43 parseInt(document.getElementById('num_points_input').value);
45 parseInt(document.getElementById('num_series_input').value);
47 parseInt(document.getElementById('repetitions').value);
51 var xmax =
2.0 * Math.PI;
53 var delta = (xmax - xmin) / (numPoints -
1);
55 for (var i =
0; i < numPoints; ++i) {
56 var x = xmin + delta * i;
58 for (var j =
0; j < numSeries; j++) {
59 var y = Math.sin(x + (j * adj));
65 for (var j =
0; j < numSeries; j++) {
66 labels.push(
"sin(x + " + (j*adj) +
")");
68 var rollPeriod = parseInt(
69 document.getElementById('roll_period_input').value);
70 var opts = {labels: labels, rollPeriod: rollPeriod};
71 var millisecondss = [];
72 for (var i =
0; i < repetitions; i++) {
73 var start = new Date();
74 plot = new Dygraph(plotDiv, data, opts);
76 durations.push([start, end - start]);
77 millisecondss.push(end - start);
79 if (repetitions ==
1) {
80 document.getElementById('message').innerHTML =
81 "completed in " + (end - start) +
" milliseconds.";
83 document.getElementById('message').innerHTML =
84 "Durations: " + millisecondss;
87 if (durations.length
> 0) {
88 var start2 = new Date();
90 document.getElementById('metrics'),
93 highlightCircleSize:
4,
94 labels: [
"Date",
"ms" ]
96 var end2 = new Date();
97 document.getElementById(
"metaperformance").innerHTML =
98 "completed in " + (end2 - start2) +
" milliseconds.";
102 document.getElementById('num_points_input').value = '
100';
103 document.getElementById('num_series_input').value = '
1';
104 document.getElementById('roll_period_input').value = '
1';
105 document.getElementById('repetitions').value = '
1';