Well it looks like the slowness I'm seeing is due to the rendering thread using all of the CPU. I tried toggling the nvidia driver settings for vsync and triple-buffering but that doesn’t change the behavior. Is there anything else I can try? Do other people see acceptable performance on Windows currently?
-Todd > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On > Behalf Of ext [email protected] > Sent: Saturday, January 14, 2012 4:47 PM > To: Storm-Olsen Marius (Nokia-MP/Austin); [email protected] > Subject: Re: [Development] Status of QtDeclarative on Windows? > > 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: [email protected]; 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 [email protected] 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 > _______________________________________________ > Development mailing list > [email protected] > http://lists.qt-project.org/mailman/listinfo/development _______________________________________________ Development mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/development
