[Qt-interest] Webkit CPU usage under MSVC

[JD Guzman]

Richard Hosking wrote:
> Hello, I am using Visual Studio Express 2008 SP1 on WinXP SP3
> and have successfully compiled qt-win-opensource-src-4.5.0 (LGPL)
> from the VS command prompt.
>
> I have a very simple QT application which uses Webkit, but I am
> seeing 100% CPU usage on a single core machine, and excessive usage
> on another dual core.
>
> The CPU usage only seems to happen when showing html pages with
> javascript in them (ie google.co.uk).
>
> To eliminate my code, I also ran the demo browser application
> in qt-win-opensource-src-4.5.0\demos\browser\release and navigated
> to http://www.google.co.uk/ and saw the same high cpu usage.
>
> Can anyone else reproduce this on Windows in a similar build?
>
> Regards,
> Richard.
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>   
I have noticed the same behavior on my system and have yet to track down 
the exact reason as to why it is happening.  On my laptop which is a 
dual-core machine I will experience a constant 50% usage of the CPU on 
my webkit enabled sample.

Cheers,

JD