https://github.com/mozilla/gecko-dev
Tip revision: 1003ec79451969335008880ad82e305d93b89642 authored by calbld on 03 January 2012, 16:37:36 UTC
Added tag CALENDAR_1_1_1_RELEASE for changeset 745b004fad4a. CLOSED TREE a=release
Added tag CALENDAR_1_1_1_RELEASE for changeset 745b004fad4a. CLOSED TREE a=release
Tip revision: 1003ec7
cycler.html
<html>
<script>
var pages = [
"bugzilla.mozilla.org/",
"lxr.mozilla.org/",
"vanilla-page/"
];
var pages_i18n = [];
var NUM_PAGES;
var NUM_CYCLES;
function parseParams() {
var s = document.location.search.substring(1);
var params = s.split('&');
for (var i = 0; i < params.length; ++i) {
var fields = params[i].split('=');
switch (fields[0]) {
case 'cycles':
NUM_CYCLES = (fields[1] - 0);
break;
case 'pages':
NUM_PAGES = (fields[1] - 0);
break;
case 'i18n':
if (fields[1] == '1') {
pages = pages.concat(pages_i18n);
}
break;
}
}
if (!NUM_PAGES)
NUM_PAGES = pages.length;
if (!NUM_CYCLES)
NUM_CYCLES = 5;
}
parseParams();
var timeVals = new Array(NUM_PAGES); // matrix of times
for (var i = 0; i < timeVals.length; ++i) {
timeVals[i] = new Array;
}
var tstart;
var index = 0;
var cycle = 0;
// returns an object with the following properties:
// min : min value of array elements
// max : max value of array elements
// mean : mean value of array elements
// vari : variance computation
// stdd : standard deviation, sqrt(vari)
// indexOfMax : index of max element (the element that is
// removed from the mean computation)
function getArrayStats(ary) {
var r = {};
r.min = ary[0];
r.max = ary[0];
r.indexOfMax = 0;
var sum = 0;
for (var i = 0; i < ary.length; ++i) {
if (ary[i] < r.min) {
r.min = ary[i];
} else if (ary[i] > r.max) {
r.max = ary[i];
r.indexOfMax = i;
}
sum = sum + ary[i];
}
// median
sorted_ary = ary.concat();
sorted_ary.sort();
// remove longest run
sorted_ary.pop();
if (sorted_ary.length%2) {
r.median = sorted_ary[(sorted_ary.length-1)/2];
}else{
var n = Math.floor(sorted_ary.length / 2);
r.median = (sorted_ary[n] + sorted_ary[n + 1]) / 2;
}
// ignore max value when computing mean and stddev
r.mean = (sum - r.max) / (ary.length - 1);
r.vari = 0;
for (var i = 0; i < ary.length; ++i) {
if (i == r.indexOfMax)
continue;
var d = r.mean - ary[i];
r.vari = r.vari + d * d;
}
r.vari = r.vari / (ary.length - 1);
r.stdd = Math.sqrt(r.vari);
return r;
}
function appendTableCol(tr, text) {
var doc = tr.ownerDocument;
var td = doc.createElement("TD");
td.appendChild(doc.createTextNode(text));
tr.appendChild(td);
return td;
}
function dumpReport() {
var all = new Array();
var counter = 0;
for (var i = 0; i < timeVals.length; ++i) {
for (var j = 0; j < timeVals[i].length; ++j) {
all[counter] = timeVals[i][j];
++counter;
}
}
// avg and avg median are cumulative for all the pages
var avgs = new Array();
var medians = new Array();
for (var i = 0; i < timeVals.length; ++i) {
avgs[i] = getArrayStats(timeVals[i]).mean;
medians[i] = getArrayStats(timeVals[i]).median;
}
var avg = getArrayStats(avgs).mean;
var avgmed = getArrayStats(medians).mean;
var r = getArrayStats(all);
dump(
"(tinderbox dropping follows)\n"+
"_x_x_mozilla_page_load,"+avgmed+","+r.max+","+r.min+"\n"+
"_x_x_mozilla_page_load_details,avgmedian|"+avgmed+"|average|"+avg.toFixed(2)+"|minimum|"+r.min+"|maximum|"+r.max+"|stddev|"+r.stdd.toFixed(2)+":"
);
for (var i = 0; i < timeVals.length; ++i) {
r = getArrayStats(timeVals[i]);
dump(
'|'+
i+';'+
pages[i]+';'+
r.median+';'+
r.mean+';'+
r.min+';'+
r.max
);
for (var j = 0; j < timeVals[i].length; ++j) {
dump(
';'+timeVals[i][j]
);
}
}
}
function showReport() {
var doc = frames["content"].document;
var tbody = doc.getElementById("tbody");
for (var i = 0; i < timeVals.length; ++i) {
var tr = doc.createElement("TR");
appendTableCol(tr, pages[i]);
var r = getArrayStats(timeVals[i]);
appendTableCol(tr, r.min.toFixed(2));
appendTableCol(tr, r.max.toFixed(2));
appendTableCol(tr, r.mean.toFixed(2));
appendTableCol(tr, r.stdd.toFixed(2));
appendTableCol(tr, r.median.toFixed(2));
for (var j = 0; j < timeVals[i].length; ++j) {
var tv = timeVals[i][j];
var td = appendTableCol(tr, tv);
if (j == r.indexOfMax)
td.setAttribute("class", "discarded");
}
tbody.appendChild(tr);
}
}
function loadPage(i) {
tstart = new Date();
frames["content"].document.location = "base/" + pages[i] + "index.html";
}
function frameLoad() {
if (cycle == NUM_CYCLES) {
showReport();
dumpReport();
window.close();
return;
}
var tend = new Date();
var href = frames["content"].document.location.href;
if (href == "about:blank")
return;
var tdelta = tend - tstart;
timeVals[index].push(tdelta);
var fields = href.split('/');
var text = (cycle + 1) + ', ' + (index + 1) + ', ' + fields[fields.length - 2] + ", " + tdelta;
var doc = frames["header"].document;
var body = doc.body;
while (body.firstChild)
body.removeChild(body.firstChild);
body.appendChild(doc.createTextNode(text));
if (++index == NUM_PAGES) {
index = 0;
if (++cycle == NUM_CYCLES) {
// display summary
frames["content"].document.location = "report.html";
return;
}
}
window.setTimeout("loadPage(" + index + ")", 500);
}
function init() {
window.resizeTo(800, 800);
window.setTimeout("loadPage(" + index + ")", 500);
}
</script>
<frameset rows="40,*" onload="init()">
<frame name="header" src="header.html">
<frame name="content" src="" onload="frameLoad()">
</frameset>
</html>
