[Development] Status of QtDeclarative on Windows?

[Todd.Rose at nokia.com]

It seems equally slow when running debug and release libs, but will double check later this weekend to make sure it's not user-error.  I think it has more to do with running with a video card that doesn't provide much (if any?) hardware acceleration.  But I was assuming that even in that case that QML2 would be just as good as QML1.  Clearly something is causing that to not be the case.

What's the expectation when using video cards that don't offer OpenGL hardware acceleration?   

-Todd

> -----Original Message-----
> From: Storm-Olsen Marius (Nokia-MP/Austin)
> Sent: Saturday, January 14, 2012 9:12 AM
> To: development at qt-project.org; Rose Todd (Nokia-M/Alpharetta)
> Subject: Re: [Development] Status of QtDeclarative on Windows?
> 
> Are you sure you are at least running the release version of your application?
> 
> Debug version uses the debug CRT libs (and a debug Qt which does the
> same), so everything will be a lot slower than the end product.
> 
> You cannot really evaluate performance with debug builds.
> 
> --
> Sent from my Nokia N9
> On 1/13/12 23:12 ext Todd.Rose at nokia.com wrote:
> Just for fun I’ve been playing with a medium-sized QML app that we had
> written for 4.7/Symbian and porting it to Qt5/QML2.  Mostly have been
> working on Linux but the past few days I finally got around to compiling Qt5
> on Windows and playing around with the project enough so that it would
> compile and run under qmlscene (it’s mostly qml/js with a C++ plugin module
> as well).
> 
> Anyway, the performance on my Windows box is horrible.  ListView scrolling,
> image loading, animations, everything is like it’s running in quicksand.  Is this
> expected?  If not, what do I need to do to in order to troubleshoot?  This
> machine is relatively old and has a crappy video card (older Nvidia Quadro),
> but it should be more than good enough to run this app smoothly.  Any tips
> or tricks to enable extra debug tracing?
> 
> Thanks,
> Todd