WPF Poor Performance

NOTE: Some of the links to the MSDN forums were broken by Microsoft.


Complaints about .net framework 3.5 size (includes WPF)

MSFT wants adoption of it's new ui toolkit which is for building client apps.  So what does it do? It packages a 200 meg redistributable that you need to send with your app.  Sorry Microsoft, my app is 5 megs, I'm not about to ship a 205 meg installer.  ... you've pretty much guaranteed that my apps will be 100% wpf-free.  Now i'm even more irate that i spent so much time learning the platform. 


WPF + Direct3D Full screen crash - MSDN Forums

 


WPF windows refresh with garbage - MSDN Forums


Hardcode : XAML overhead ...

WPF is so terribly bloated, check below the top of the stack with the mouse click handler...


Transitioning to WPF - MSDN Forums

The bad news is WPF is a totally retained UI framework, meaning you don't really have access to much low level stuff to do any custom hi-performance stuff. 


WPF: making simple things easy and difficult things impossible? - MSDN Forums

But whatever I do, I can not even get decent frame rates for a simple particle system with a few thousand particles. I tried several approaches (one big DrawingVisual, one DrawingVisual per particle, writing a custom animation, subscribing to CompositionTarget.Render, etc.).

Both graphics cards are fast enough to play FarCry in full resolution, so please don't tell me that I should just get a better graphics card. And by the way, I am quite sure that the bottleneck is not the graphics card but the scene graph management, which is of course CPU bound.


WPF Scrambling - MSDN Forums

Several times in the past we have seen WPF applications become scrambled looking. When the screen becomes scrambled, the WPF windows will fill with various colored rectangles instead of the GUI UI. I have seen issues similar to this with DirectX programming when the backbuffer is not properly cleared.


Animation processor load - MSDN Forums

I want to have a small asterisk pulsing at sevaral places of the screen to attract user's attention.

I have an asterisk image (several Paths and GradientBrushes) and I animate it's RenderTransform/ScaleTransform/ScaleX, Y from 0.8 to 1.5 and back forever.

But having 10 such asterisks at screen takes all processor time !


RichTextBox performance issues - MSDN Forums

While beginning of the text is instantly viewable, the control seems to take between 5-10s to finish layout completely (I can see the scrollbar resizing). This behavior makes the control basically useless as an editor since some editing operations or a resize cause this "re-layout" to occur.


2D performance problems with large number of points - MSDN Forums

The GDI based app gives sub-second response times for scaling the same data.  My WPF based prototype takes approx 10 times as long taking at around 1.5 seconds on zoom in and zoom out.


Microsoft ex-employee on Avalon (WPF) development

Avalon has some great stuff, but if I got invited to one more dog and pony with mock ups of how great it would be (when it worked), I would have screamed. The inmates got control of the features in the asylum and the result was a bloated product.


Poor performance on Windows XP - MSDN Forums


ListView in WPF uses over 200MB of memory when using 4000 items - MSDN Forums


I am so fed up with WPF and .Net 3.0 !!!! - MSDN Forums

General Disgust

"I think most of the performance issues I see relate to the CPU, not the graphics card.  FrameworkElement creation and layout just takes longer than it seems it should take.  So for example it takes 3 to 4 seconds to create a page with about 200 controls in a StackPanel on an Athlon X2 4400.  When I look for the bottleneck, it's the UserControl creation that takes up the time.  Now it may be that I need to look for ways to optimize the UserControl, but when I compare the complexity of my page relative to something a web browser displays, I generally find WPF to be slow, from layout to object creation."


Performance problem - MSDN Forums

Slow object creation/Destruction

(VG.net can create 1 million Shapes in less than 1 second on a low end 1.7Ghz CPU) 


Strange problems with many WPF elements. - MSDN Forums

Bugs with more than 100 elements 


How to Generate multiple bitmapimage fastest ? - MSDN Forums

Slow bitmap creation compared to GDI+ 


Why BitmapEffects are Slow ? - MSDN Forums

Slow BitmapEffects 


Bound data displaying performance issue - MSDN Forums

Very slow GridView 


ScrollViewer Performance - MSDN Forums

Slow ScrollViewer 


ContextMenu renders slow in Vista - MSDN Forums

ContextMenu animation 


Animating huge objects small distances. - MSDN Forums

Glitches with large object movement 


Poor performance on Windows XP