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Is IE8 Multi Threaded?

Hi

Im doing some testing on IE8 for a client where an application processes a huge about of Vector Drawing and grinds IE8 to a halt for 20mins. No problems with this but when its busy i check process monitor and its stuck at 25% (I am using a quad core machine to test)
I have checked the affinity and all cores are checked so i assume IE8 does not take advantage of multi core machines?

Can someone who knows more than me please confirm if this is the case?

Thanks
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Jonesey007
Asked:
Jonesey007
2 Solutions
 
n2fcCommented:
IE8 is not...

IE9's major feature is the new JavaScript engine Chakra, which delivers some impressive performance gains over Internet Explorer 8. It's multithreaded; one thread will run the script in realtime, while another thread compiles and optimises it in the background.

IE9 also makes use of GPU assisted page rendering...
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GaryCommented:
Each plugin, addon and tab runs its own thread (plus one for the browser window itself) but there aren't multiple threads per browser tab.
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Jonesey007Author Commented:
Thanks for the input guys, just to clarify. Im running the app in one tab

Im testing multiple browsers
IE8                    25% CPU
IE9                    25% - 30% CPU
FF 3.6.1            25% - 30% CPU
FF 10.0.2          25% - 30% CPU

It seems like the later 3 browsers all max out their Javascript thread at 25% and then the Browser thread uses up a few % too.
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