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<head>
<title>Page Benchmark Options</title>
<script src="jst/util.js" type="text/javascript"></script>
<script src="jst/jsevalcontext.js" type="text/javascript"></script>
<script src="jst/jstemplate.js" type="text/javascript"></script>
<script src="jst/jstemplate_example.js" type="text/javascript"></script>
<style>
body {
font-size: 84%;
font-family: Helvetica, Arial, sans-serif;
padding: 0.75em;
margin: 0;
min-width: 45em;
}
h1 {
font-size: 110%;
font-weight: bold;
color: #4a8ee6;
letter-spacing: -1px;
padding: 0;
margin: 0;
}
div#header {
padding: 0.75em 1em;
padding-top: 0.6em;
padding-left: 10;
margin-bottom: 0.75em;
position: relative;
overflow: hidden;
background: #5296de;
-webkit-background-size: 100%;
border: 1px solid #3a75bd;
-webkit-border-radius: 6px;
color: white;
text-shadow: 0 0 2px black;
}
div#header h1 {
padding-left: 37px;
margin: 0;
display: inline;
color: white;
}
div#header p {
font-size: 84%;
font-style: italic;
padding: 0;
margin: 0;
color: white;
padding-left: 0.4em;
display: inline;
}
table.list {
font-size: 84%;
table-layout: fixed;
}
table.list:not([class*='filtered']) tr:nth-child(odd) td:not([class*='filtered']) {
background: #eff3ff;
}
table.list th {
padding: 0 0.5em;
vertical-align: bottom;
font-weight: bold;
color: #315d94;
color: black;
text-align: center;
}
.avg {
font-weight: bold;
text-align: center;
}
.data {
text-align: left;
white-space: nowrap;
}
.bggraph {
background-color: #faa;
white-space: nowrap;
}
</style>
<script>
var max_sample = 0;
Array.max = function(array) {
return Math.max.apply( Math, array );
}
Array.min = function(array) {
return Math.min.apply( Math, array );
};
// Compute the average of an array, removing the min/max.
Array.avg = function(array) {
var count = array.length;
var sum = 0;
var min = array[0];
var max = array[0];
for (var i = 0; i < count; i++) {
sum += array[i];
if (array[i] < min) {
min = array[i];
}
if (array[i] > max) {
max = array[i];
}
}
if (count >= 3) {
sum = sum - min - max;
count -= 2;
}
return sum / count;
}
// Compute the standard deviation of an array
Array.stddev = function(array) {
var count = array.length;
var mean = Array.avg(array);
var variance = 0;
for (var i = 0; i < count; i++) {
var deviation = mean - array[i];
variance = variance + deviation * deviation;
}
variance = variance / count;
return Math.sqrt(variance);
}
// Object to summarize everything
var totals = {};
// Compute the results for a data set.
function computeDisplayResults(data) {
var count = data.data.length;
for (var i = 0; i < count; i++) {
var obj = data.data[i];
var resultList = obj.totalResults;
obj.mean = Array.avg(resultList);
obj.stddev = Array.stddev(resultList);
obj.stderr = obj.stddev / Math.sqrt(obj.iterations);
var ci = 1.96 * obj.stderr;
obj.cihigh = obj.mean + ci;
obj.cilow = obj.mean - ci;
obj.min = Array.min(resultList);
obj.max = Array.max(resultList);
obj.readbps = obj.bytesRead * 8 / obj.totalTime;
obj.writebps = obj.bytesWritten * 8 / obj.totalTime;
obj.readKB = obj.bytesRead / 1024;
obj.writeKB = obj.bytesWritten / 1024;
obj.paintMean = Array.avg(obj.paintResults);
obj.startLoadMean = Array.avg(obj.startLoadResults);
obj.commitLoadMean = Array.avg(obj.commitLoadResults);
obj.docLoadMean = Array.avg(obj.docLoadResults);
obj.displayRequests = obj.requests;
obj.displayConnects = obj.connects
obj.displaySpdySessions = obj.spdySessions;
}
return count;
}
// Subtract the results from two data sets.
// This function could be smarter about what it subtracts,
// for now it just subtracts everything.
// Returns true if it was able to compare the two data sets.
function subtractData(data, baseline) {
var count = data.data.length;
if (baseline.data.length != count) {
return false;
}
for (var i = 0; i < count; i++) {
var obj = data.data[i];
var obj2 = baseline.data[i];
// The data sets are different.
if (obj.url != obj2.url ||
obj.iterations != obj2.iterations) {
return false;
}
obj.mean -= obj2.mean;
obj.stddev -= obj2.stddev;
obj.min -= obj2.min;
obj.max -= obj2.max;
obj.readbps -= obj2.readbps;
obj.writebps -= obj2.writebps;
obj.readKB -= obj2.readKB;
obj.writeKB -= obj2.writeKB;
obj.paintMean -= obj2.paintMean;
obj.startLoadMean -= obj2.startLoadMean;
obj.commitLoadMean -= obj2.commitLoadMean;
obj.docLoadMean -= obj2.docLoadMean;
obj.displayRequests -= obj2.displayRequests;
obj.displayConnects -= obj2.displayConnects;
obj.displaySpdySessions -= obj2.displaySpdySessions;
}
return true;
}
// Compute totals based on a data set.
function computeTotals(data) {
var count = data.data.length;
for (var i = 0; i < count; i++) {
var obj = data.data[i];
totals.mean += obj.mean;
totals.paintMean += obj.paintMean;
totals.startLoadMean += obj.startLoadMean;
totals.commitLoadMean += obj.commitLoadMean;
totals.docLoadMean += obj.docLoadMean;
}
}
// Compute results for the data with an optional baseline.
// If |baseline| is undefined, will compute the results of this
// run. Otherwise, computes the diff between this data and the baseline.
function computeResults(data, baseline) {
totals = {};
totals.mean = 0;
totals.paintMean = 0;
totals.startLoadMean = 0;
totals.commitLoadMean = 0;
totals.docLoadMean = 0;
var count = computeDisplayResults(data);
if (baseline) {
computeDisplayResults(baseline);
if (!subtractData(data, baseline)) {
alert("These data sets are different");
document.getElementById("baseline").value = "";
return;
}
}
computeTotals(data);
totals.url = "(" + count + " urls)";
if (count > 0) {
totals.mean /= count;
totals.paintMean /= count;
totals.startLoadMean /= count;
totals.commitLoadMean /= count;
totals.docLoadMean /= count;
}
// Find the biggest average for our bar graph.
max_sample = 0;
for (var i = 0; i < data.data.length; i++) {
if (data.data[i].max > max_sample) {
max_sample = data.data[i].mean;
}
}
}
function jsinit() {
var extension = chrome.extension.getBackgroundPage();
// Run the template to show results
var data = extension.results;
// Get the baseline results
var elt = document.getElementById("baseline");
var baseline_json = document.getElementById("baseline").value;
var baseline;
if (baseline_json) {
try {
baseline = JSON.parse(baseline_json);
} catch (e) {
alert("JSON parse error: " + e);
}
}
// Compute
computeResults(data, baseline);
var context = new JsEvalContext(data);
context.setVariable('$width', 0);
context.setVariable('$samples', 0);
var template = document.getElementById("t");
jstProcess(context, template);
// Set the options
document.getElementById("iterations").value = extension.iterations;
document.getElementById("clearconns").checked = extension.clearConnections;
document.getElementById("clearcache").checked = extension.clearCache;
document.getElementById("enablespdy").checked = extension.enableSpdy;
setUrl(extension.testUrl);
if (!baseline) {
var json_data = JSON.stringify(data);
document.getElementById("json").value = json_data;
}
}
function getWidth(mean, obj) {
var kMinWidth = 200;
var max_width = obj.offsetWidth;
if (max_width < kMinWidth) {
max_width = kMinWidth;
}
return Math.floor(max_width * (mean / max_sample));
}
// Apply configuration back to our extension
function config() {
var extension = chrome.extension.getBackgroundPage();
var iterations = parseInt(document.getElementById("iterations").value);
var clearConnections = document.getElementById("clearconns").checked;
var clearCache = document.getElementById("clearcache").checked;
var enableSpdy = document.getElementById("enablespdy").checked;
if (iterations > 0) {
extension.iterations = iterations;
extension.clearConnections = clearConnections;
extension.clearCache = clearCache;
extension.enableSpdy = enableSpdy;
}
}
// Set the url in the benchmark url box.
function setUrl(url) {
document.getElementById("testurl").value = url;
}
// Start the benchmark.
function run() {
if (!chrome.benchmarking) {
alert("Warning: Looks like you forgot to run chrome with " +
" --enable-benchmarking set.");
return;
}
var extension = chrome.extension.getBackgroundPage();
var testUrl = document.getElementById("testurl").value;
extension.testUrl = testUrl;
extension.run();
}
// Clear the results
function clearResults() {
var extension = chrome.extension.getBackgroundPage();
extension.results = {};
extension.results.data = new Array();
document.getElementById("json").value = "";
document.getElementById("baseline").value = "";
jsinit();
}
// Toggle display of an element
function toggle(id) {
var elt = document.getElementById(id);
if (elt.style.display == "none") {
elt.style.display = "block";
} else {
elt.style.display = "none";
}
}
</script>
</head>
<body onload="jsinit()">
<h1><div id="header">Page Benchmark Results</div></h1>
<h1>Configuration</h1>
<span>Iterations</span>
<input id="iterations" type=text style="text-align:right">
<input type="button" value="Clear Results" onclick="clearResults();">
<nb/>
Clear Connections?<input id="clearconns" type="checkbox">
Clear Cache?<input id="clearcache" type="checkbox">
Enable Spdy?<input id="enablespdy" type="checkbox">
<form onsubmit="config(); run()">
URL to load <input type="text" id="testurl" size=100>
<input type="submit" value="Run"><P>
</form>
<p>
<h1>Results</h1>
<table id="t" class="list" width="100%">
<tr>
<th width=200px>url</th>
<th width=50>iterations</th>
<th width=50>via spdy</th>
<th width=50>start load mean</th>
<th width=50>commit load mean</th>
<th width=50>doc load mean</th>
<th width=50>paint mean</th>
<th width=50>total mean</th>
<th width=50>stddev</th>
<th width=50>stderr</th>
<th width=50>95% CI-low</th>
<th width=50>95% CI-high</th>
<th width=50>min</th>
<th width=50>max</th>
<th width=50># Requests</th>
<th width=50># Connects</th>
<th width=50># SPDY Sessions</th>
<th width=50>Read KB</th>
<th width=50>Write KB</th>
<th width=50>Read KBps</th>
<th width=50>Write KBps</th>
<th samples></th>
</tr>
<tr id="t.total" jsselect="totals">
<td class="url">TOTALS <span jscontent="url"></span></td>
<td class="avg" jseval="1"></td>
<td class="avg" jseval="1"></td>
<td class="avg"><span jseval="val = startLoadMean.toFixed(1)" jscontent="val"></span></td>
<td class="avg"><span jseval="val = commitLoadMean.toFixed(1)" jscontent="val"></span></td>
<td class="avg"><span jseval="val = docLoadMean.toFixed(1)" jscontent="val"></span></td>
<td class="avg"><span jseval="val = paintMean.toFixed(1)" jscontent="val"></span></td>
<td class="avg"><span jseval="val = mean.toFixed(1)" jscontent="val"></span></td>
<td class="avg" jseval="1"></td>
<td class="avg" jseval="1"></td>
<td class="avg" jseval="1"></td>
<td class="avg" jseval="1"></td>
<td class="avg" jseval="1"></td>
<td class="avg" jseval="1"></td>
<td class="avg" jseval="1"></td>
<td class="avg" jseval="1"></td>
<td class="avg" jseval="1"></td>
<td class="avg" jseval="1"></td>
<td class="data"></td>
</tr>
<tr jsselect="data">
<td class="url" jseval="$width = getWidth($this.mean, this); url.length > 40 ? $suburl = url.substring(0,27) + '...' + url.substring(url.length-10, url.length) : $suburl=url"><div jsvalues=".style.width:$width" class="bggraph"><a jsvalues="href:$this.url" jscontent="$suburl"></a></div></td>
<td class="avg" jseval="val = iterations" jscontent="val"></td>
<td class="avg" jseval="val = viaSpdy" jscontent="val"></td>
<td class="avg" jseval="val = startLoadMean.toFixed(1)" jscontent="val"></td>
<td class="avg" jseval="val = commitLoadMean.toFixed(1)" jscontent="val"></td>
<td class="avg" jseval="val = docLoadMean.toFixed(1)" jscontent="val"></td>
<td class="avg" jseval="val = paintMean.toFixed(1)" jscontent="val"></td>
<td class="avg" jseval="val = mean.toFixed(1)" jscontent="val"></td>
<td class="avg" jseval="val = stddev.toFixed(1)" jscontent="val"></td>
<td class="avg" jseval="val = stderr.toFixed(1)" jscontent="val"></td>
<td class="avg" jseval="val = cilow.toFixed(1)" jscontent="val"></td>
<td class="avg" jseval="val = cihigh.toFixed(1)" jscontent="val"></td>
<td class="avg" jseval="val = min.toFixed(1)" jscontent="val"></td>
<td class="avg" jseval="val = max.toFixed(1)" jscontent="val"></td>
<td class="avg" jseval="val = displayRequests" jscontent="val"></td>
<td class="avg" jseval="val = displayConnects" jscontent="val"></td>
<td class="avg" jseval="val = displaySpdySessions" jscontent="val"></td>
<td class="avg" jseval="val = readKB.toFixed(1)" jscontent="val"></td>
<td class="avg" jseval="val = writeKB.toFixed(1)" jscontent="val"></td>
<td class="avg" jseval="val = readbps.toFixed(1)" jscontent="val"></td>
<td class="avg" jseval="val = writebps.toFixed(1)" jscontent="val"></td>
<td class="data"><span jsselect="totalResults"><span jscontent="$this"></span>,</span> </td>
</tr>
<tr jsdisplay="data.length == 0">
<td colspan=11>No tests have been run yet.</td>
</tr>
</table>
<hr>
<span onclick="toggle('json')">JSON data</span><br>
<textarea style="display: none" type=text id=json rows=10 cols=50></textarea><p>
<span onclick="toggle('baseline')">COMPARE to</span><br>
<textarea style="display: none" type=text id=baseline rows=10 cols=50
onchange="jsinit()"></textarea><p>
</body>
|
