Anyone else experiencing pausing when using extjs?

[jay@moduscreate.com]

simple:
<script language="JavaScript" src="/js/extjs/yui-utilities.js"></script>
<script language="JavaScript" src="/js/extjs/ext-yui-adapter.js"></script>
<script language="JavaScript" src="/js/extjs/ext-all.js"></script>

pauses my browser for a second or two.

same happens in IE6 and FF 2.0.3 w/ FB disabled. :s

This happens on my Lenovo T60 (core duo 1.83gz, 2GB RAM).

also happens when visiting extjs sites.

[jack.slocum]

With firebug enabled I generally have the pause on page load. Otherwise no problems.

I think it's odd you are getting it on extjs.com since it doesn't include ext (yet).

[AlexJG]

The only time I get any delay is when Firebug is enabled

Regards

Alex

[jay@moduscreate.com]

With firebug enabled I generally have the pause on page load. Otherwise no problems.

I think it's odd you are getting it on extjs.com since it doesn't include ext (yet).

i agree dude. :-\

let me rephrase: i *was* getting it back around the alpha3 days. It's been commented out since then. ;)

<!--<script type="text/javascript" src="http://yui-ext.com/deploy/ext-1.0-alpha3/yui-utilities.js"></script>
<script type="text/javascript" src="http://yui-ext.com/deploy/ext-1.0-alpha3/ext-yui-adapter.js"></script>
<script type="text/javascript" src="http://yui-ext.com/deploy/ext-1.0-alpha3/ext-all.js"></script>-->

Very strange.

Thanks anywho. just wanted to see if anyone else is getting the same pause.

[jay@moduscreate.com]

OK, i'm going to put down the crack pipe. =P~

[cdomigan]

Yes I get a pause like this even with firebug disabled.

Chris

[Joe]

Could you run a performance monitoring program on your system and see if your CPU utilization goes way up? I seem to see pauses that directly coinside with CPU utilization. On a faster machine with the same network, the delay is slower. Telling me the delay is not network related.

A good example, load up two content panels with grids (with 200 in each), then change between the tabs and check CPU utilization .

The amount of processing going on "in there" can be intense.

Just curious if you see the same thing. Note: I see this in IE and FF (with firebug) - but more in IE

Btw, I used "crack pipe" to find this thread I remembered reading. Thanks for the great "bread crumb"

Regards

[jay@moduscreate.com]

I didn't use perfmon, but task manager showed 50% CPU across both cores for that ~second timeframe.

The cpu utilization spikes shortly after a page is rendered. it *only happens with EXTJS + Firebug. Not with regular YUI or any other JS Framework, hence posting here. It started to happen after yui-ext .33 :(

Large grid/table sorting operations are a bear in javascript. I noticed the yui-ext grid was very CPU intensive when i went > 500 rows x 8 columns. YUI's grid component does better, but doesn't look nearly as clean. I still have CPU issues. I wrote a "closed even lookup" for my company and used Yahoo's grid component to allow our Tier one folks the ability to sort, filter, etc on a live lookup.

I've just accepted the fact that JavaScript is crippled because of the browsers that interprets it.

[JeffHowden]

[...]it *only happens with EXTJS + Firebug[...]

Firebug is a known resource hog. You'll only ever get a realistic idea of the impact Ext has when firebug is completely disabled (not just minimized).

[jay@moduscreate.com]

Agreed. I just think it's strange that it only happens to me with extjs. that's all.

[JeffHowden]

Agreed, but that's a usecase that's hardly worth troubleshooting. I suspect it has alot to do with parsing a large script file, but there's no good way to know what it is specifically as it's internal to Firebug.

[jay@moduscreate.com]

Yeah, i'm not suggesting that you guys even invest an ounce of cycles. Folks who use that firebug tool are developers, which is like .0001% of the internet userbase ;)

none the less, i wanted to see if anyone else experienced this since my first post about this. Also, wanted to see if there were knowns about this.