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18:11
23/06/2010
Offline
Create and unload grid again and again. The browser memory grow rapidly。The browser version is 5.0.375.70
while(true) {
$("#gridTable").jqGrid({
height: 250,
width: 400,
colNames:['id','name'],
colModel:[
{name:'id'},
{name:'name'}
],
rowNum:10,
});
$("#gridTable").GridUnload();
}
18:45
11/12/2009
Offline
This is not a good test because the garbage collector has no chance to kick in.
Try setInterval(function() { }, 200) instead of while.
I don't see any memory increase after 100 invocations.
09:57
23/06/2010
Offline
I try setInterval(function() { }, 200). And still has memory leak. Chrome occupy 38M memory at the begin. Chrome occupy 600M memory after run this test case for one hour.
IE 8 and Firefox 3.5.5 have the same problem.
The jqGrid version is 3.7.1. The operating system is Windows XP.
<html>
<head>
<script type='text/javascript' src='jquery.jqGrid/js/jquery-1.4.2.min.js'></script>
<link rel="stylesheet" href="jquery/css/smoothness/jquery.ui.all.css" type="text/css" media="screen">
<link rel="stylesheet" href="jquery.jqGrid/css/ui.jqgrid.css" type="text/css" media="screen">
<script type="text/javascript" src="jquery.jqGrid/js/i18n/grid.locale-en.js"></script>
<script type="text/javascript" src="jquery.jqGrid/src/grid.base.js"></script>
<script type="text/javascript" src="jquery.jqGrid/src/grid.common.js"></script>
<script type="text/javascript" src="jquery.jqGrid/src/grid.custom.js"></script>
<script type="text/javascript" src="jquery.jqGrid/src/grid.formedit.js"></script>
<script type="text/javascript" src="jquery.jqGrid/src/grid.inlinedit.js"></script>
<SCRIPT LANGUAGE="JavaScript">
$(document).ready(function(){
setInterval(function() {
$("#table").jqGrid({
datatype:function() {},
height: 250,
width: 300,
colNames:['id', 'name', 'phone'],
colModel:[
{name:'id'},
{name:'name'},
{name:'phone'}
],
rowNum:10
});
$("#table").GridUnload();
}, 200);
});
</SCRIPT>
</head>
<body>
<table id='table' />
</body>
</html>
13:33
Moderators
30/10/2007
Offline
Hello,
1. I see datatype as function in your code. This means that you made your own ajax request. Until this request comme to the grid they is already destroyed. That is: the request (data) is in your memory not knowing where to go.
The real test is:
Sorry edit:
In the succes (or complete) event in your ajax request call the GridUnload after a delay.
Regards
Tony
For professional UI suites for Java Script and PHP visit us at our commercial products site - guriddo.net - by the very same guys that created jqGrid.
13:45
23/06/2010
Offline
My datatype function is empty. No ajax request. The example I provided is the whole test case. You can paste in a file and run the testcase.
Though I GridUnload right after creating the grid, It should not has any memory leak. I think something not release in GridUnload.
14:11
23/06/2010
Offline
I got it. These codes in the grid.base.js cause memory leak:
$(document).mouseup(function (e) {
if(grid.resizing) { grid.dragEnd(); return false;}
return true;
});
...
$(window).unload(function () {
ts = null;
});
These codes bind events when creating each grid. And never free.
15:50
Moderators
30/10/2007
Offline
Hello,
Thanks for the investigation.
If you replace
$(document).mouseup(function (e) {
if(grid.resizing) { grid.dragEnd(); return false;}
return true;
})
with
$(grid.hDiv).mouseup(function (e) {
if(grid.resizing) { grid.dragEnd(); return false;}
return true;
})
Does this happen?
Best Regards
Tony
For professional UI suites for Java Script and PHP visit us at our commercial products site - guriddo.net - by the very same guys that created jqGrid.
19:10
23/06/2010
Offline
It still has memory leak if change "$(document).mouseup" to "$(grid.hDiv).mouseup". If I comment the following lines. No more memory leak.
/*$(window).unload(function () {
ts = null;
});*/
11:53
Moderators
30/10/2007
Offline
Hello,
Thanks for investigation.
Also windows unload is raised if a refresh button by exmple is clicked, that is this is not seen in your code.
Little confused about this
Regards
Tony
For professional UI suites for Java Script and PHP visit us at our commercial products site - guriddo.net - by the very same guys that created jqGrid.
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