140829 - Slow and unresponsive.

Status: RESOLVED FIXED

(Core :: Layout, defect)

Description

[jorge]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:0.9.9+)
Gecko/20020425
BuildID:    2002042510

On certain sites, Mozilla tends to become slow and unresponsive.
By quick scrolling the site http://www.anamax.com, you will notice  
a delay in response in the browser.

Reproducible: Always
Steps to Reproduce:
1.Visit http://www.anamax.com
2.
3.

Actual Results:  Slow to respond.
Site seems to heavy or big in size for the browser.

Comment 1

[jorge]

Gee, I really meant to use the URL, http://www.amamax.com, but the other works
as a good example as well.

Comment 2

[Matthias Versen [:Matti]]

-> Layout

Comment 3

[Matthias Versen [:Matti]]

*** Bug 140887 has been marked as a duplicate of this bug. ***

Comment 4

[Boris Zbarsky [:bzbarsky]]

ccing dcone, who has fixed a few bugs like this in the last few days..

Jorge, please retest with today's build.

Comment 5

[jorge]

I know the problem. If you set you display settings to 32 or 24 bit, you will
experience this problem on sites like http://www.anamax.com. If you set your
display settings to 12 or 16 bit, the sluggish scrolling dissappears. I am using
build 2002042908. 

Comment 6

[jorge]

I don't know why I keep confusing these sites. Anyways try http://www.amamax.com,
using both 24 or 32 bit, and 12 or 16 bit and compare the difference in the 
scrolling bar performance.

Comment 7

[dcone (gone)]

I dont have a problem with this file.  It is a little slow.. but I dont really 
have a problem in 32 bit. If I make the window very narrow.. it scrolls very 
smoothly.  I do have a very slight update delay.. but nothing supper noticable. 
Let me ask you this.. do you have a GForce II card.. and if you mess with the 
optimization does the responsivness change.  

Comment 8

[jorge]

The reason it scrolls nicely when its narrow is because the browser is using 
less video memory, or less video graphics. I do have an NVIDIA MX2, and 
changing the optimizations to higher quality slowers the performance on 
Mozilla, less color makes it better. No difference in other browsers. They 
have managed to fix it so it works fine either way for sites like 
Directron.com, which previously had the same problem. But 
http://www.amamax.com, and sites similiar to it still are affected by it.

Comment 9

[jorge]

Okay, I finally got this problem resolved on my behalf. I downloaded the 
latest Detonator XP drivers from Nvidia.com and Mozilla finally works fine on 
these webpages. So maybe a warning to Nvidia graphic cards users would be nice.