Have some great and some 'bad' news:
great: the big memory problems of labels are gone
'bad': My claim that ui.core.Widgets have no memory-problem from the last
post was wrong.
This was from a test, where widgets were created and destroyed instantly,
without adding them to the root.
My current measures are as follows (done on windows xp sp2, IE7), I did
all the measures with a new testclass now (attached below).
All widgets/elements are made visible in the DOM and then removed again.
----------------
qooxdoo beta 1
----------------
10.000 qx.ui.core.Widgets: 40MB leak
3.000 qx.ui.basic.labels: stopped test, because massive memory leak
------------------
trunk (rev 15821)
------------------
10.000 qx.ui.core.Widgets: 40MB leak
10.000 qx.ui.basic.Labels 40MB leak
100.000 qx.html.Labels: 7MB leak
------------------
trunk (rev 15821)
------------------
changed, so that objects are not stored in object-registry
100.000 qx.html.Labels: no leak <- as I said - 7MB on 100.000
elements without this fix is not relevant for now
--------------- test source --------
/**
* Label-Creator
*/
qx.Class.define("custom.Application",
{
extend : qx.application.Standalone,
members :
{
map : new Array(),
htmlRootElement : null,
offset : 0,
masterLabel : null,
testHTMLElement: function() {
var popped;
while (popped=this.map.pop()) {
popped.dispose();
popped=null;
}
for ( var i = 0; i < 500; i++) {
var qxElement = new qx.html.Label;
qxElement.setContent(this.offset + "Test");
this.htmlRootElement.add(qxElement);
this.map.push(qxElement);
this.offset++;
}
this.masterLabel.setContent("Widget Count: "+this.offset);
qx.event.Timer.once(this.testHTMLElement, this, 300);
},
testWidgets: function() {
var popped;
while (popped=this.map.pop()) {
popped.destroy();
popped=null;
}
for ( var i = 0; i < 100; i++) {
// toggle comment to switch between Labels and widgets
var label=new qx.ui.basic.Label(this.offset + "Test");
//var label=new qx.ui.core.Widget();
//label.getContentElement().setAttribute("text", this.offset +
"Test");
this.getRoot().add(label, {
left : 50,
top : 50 + i*20
});
this.map.push(label);
this.offset++;
}
this.masterLabel.setContent("Widget Count: "+this.offset);
qx.event.Timer.once(this.testWidgets, this, 300);
},
main : function()
{
// Call super class
this.base(arguments);
this.masterLabel=new qx.ui.basic.Label();
this.getRoot().add(this.masterLabel, {
left : 200,
top : 10
});
var body=qx.dom.Node.getBodyElement(document);
this.htmlRootElement= new qx.html.Root(body);
// toggle comment for different tests
this.testHTMLElement();
//this.testWidgets();
}
}
});
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