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Type: Bug
ID: 492943
Opened: 9/29/2009 12:05:21 AM
Access Restriction: Public
0
Workaround(s)
13
User(s) can reproduce this bug
The following page makes IE8 use 100% CPU and render the animations very slowly:

http://en.wikipedia.org/wiki/Dutch_roll

Tested with No Addons Mode, same results. I'm running IE8 from Windows 7 x64 RTM.
Details (expand)

Please verify that this issue occurs in Internet Explorer 8 RTW. Click here for more information.
Yes, this issue is reproduced in IE8 RTW.

1. What seems to be the problem? Click here for more information.
Internet Explorer is being slow.

2. What area did the issue occur in? Click here for more information.
Other

3. What language of your browser's frame? Click here for more information.
English

3a. What is your language preference order?  Click here for more information.
en-US, pt-BR

 
Please try to reproduce this issue in No Add-ons mode and answer the following 2 questions. You can find the No Add-ons shortcut under All Programs > Accessories > System Tools > Internet Explorer (No Add-ons).  Click here for more information.

4.  What was the result of the issue after trying it in No Add-ons mode?
The issue reproduces in No Add-ons mode

5. If running in No Add-ons mode solves your issue, what kind of Add-ons are you using?
 

5a. If Other, then please list the add-on:
 


6. How often does this happen? Click here for more information.
Always Happens

7. What Operating System are you running? Click here for more information.
Windows Vista SP2 x64

8. Have you ever seen this problem before in Internet Explorer? Click here for more information.
This is new to IE8 RTW

9. Where does this occur?  Click here for more information.
IE8: Default Mode

9a. Please provide the URL of the internet application being used.
http://en.wikipedia.org/wiki/Dutch_roll


10. Please list the reproduction steps. Click here for more information.
Go to http://en.wikipedia.org/wiki/Dutch_roll and see the IE8 CPU usage in Task Manager. Also note that the animations are rendered slowly.

11. What are the expected results? Click here for more information.
Should not use 100% CPU and render the animations fastly.

12. What are the actual results? Click here for more information.
Is slow and uses 100% CPU.
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Posted by Will_B! on 9/29/2009 at 6:10 AM
Tested on IE 8 (8.0.7600.16385) under Windows 2008 R2, iexplore *32 - CPU usage 45-47%
Posted by xiphi on 9/29/2009 at 7:28 AM
Tested on IE8 on Windows 7 RTM x86. Firefox renders the gif's on the page with little cpu usage, 5%, while IE8 struggles taking up 50% cpu on my dual core machine. On a single core system, that would be 100% cpu.
Posted by CompGuy101 on 9/29/2009 at 8:21 PM
I tested this on a Vista x64 computer running 32-bit IE8 with latest updates on a Quad Core processor and it instantly used up 25% of my processing power, or one of four processors.
Posted by Typhoon87 on 10/3/2009 at 10:55 AM
this page was eating memroy usage skyrocketed over from about 27 meg to up over 100 megs. and took about 52% cup.

Vista SP 2 x86 4 gig of ram, core 2 duo 2.1 gig.
Posted by kaisch on 10/28/2009 at 11:32 AM
IE takes traditionally much more ressources for animated gifs.
Posted by Psychoticus on 11/23/2009 at 1:03 AM
I'm Running Win XP SP3, Machine Specs Are 4GB 1066 DDR2 RAM, AMD 9950 x4 CPU, J&W Performance Mobo 9500GT GPU

Took No More Than 5% CPU Usage
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