what is new in wpf 3.5 sp1
TRANSCRIPT
Windows Presentation Foundation What is new?
Pandurang NayakClient Platform EvangelistMicrosoft Corporation
.NET Framework and Tools Roadmap
2006.NET Framework 3.0VS 2005 Extensions for .NET 3.0 (CTP)
2007.NET Framework 3.5Visual Studio 2008Expression Blend 1.0
2008.NET Framework 3.5 SP1Visual Studio 2008 SP1Expression Blend 2.0
.NET Framework 3.5 SP1
WPF EnhancementsOther Enhancements (ASP.NET,
etc.)
.NET Framework 3.5WPF 3.5
LINQAdd-in
FrameworkWF & WCF
Enhancements
.NET Framework 3.0
WPF CardSpaceWCF WF
.NET Framework Roadmap
.NET Framework 2.0
CLR Base Class LibraryWinForms/ ASP.NET
SP1
SP1
WPF in a nutshell
Rich Windows ApplicationsGreat Architecture + Great GraphicsRapid Prototyping
2D, 3D, Vector, Document Flow, Layouts, Composition, etc.
WPF 3.5 Enhancements•.NET Framework Client Profile •~25MB client subset of .NET Framework•Customized install experiences
Deployment
•Interactive 2D on 3D•Pixel Shaders and Effects Model•DirectX Interop•New Controls
Graphics
•Cold Startup Improvements•Several perf enhancements•Profiling tools and instrumentation
Performance
.NET Client Profile
~25MB Client-only Subset of .NET FxIncludes WinForms, WPF, LINQ, etc.Excludes ASP.NET, WCF, etc.
200KB fully customizable Bootstrapper
.NET Framework Client ProfileUsing the Client Profile Deployment option in Visual Studio 2008 SP1
DEMO
WPF 3.0 Graphics Recap
Rich set of 2D drawing primitivesBasic 3D functionality via Viewport3DRich Media IntegrationExtensive Animation SystemAdvanced Text StackBitmap EffectsImagingCompositor
WPF 3.5 Graphics EnhancementsTrue Interactive 2D-on-3DPixel Shaders Effects Model
Hardware-Accelerated HLSL Support
DirectX InteropInterop Bitmap
Replaces Writeable BitmapFaster Layered Window SupportAnimation Fixes
Graphics EnhancementsInteractive 2D on 3DPixel Shader Effects
DEMO
New ControlsWeb Browser Control
Interop between HTML and WPF contentWPF -> HTML
WPF application can call script methods in HTML with WebBrowser.InvokeScript
HTML -> WPFScript in HTML can call methods and access properties on WebBrowser.ObjectForScripting that are COM-Visible with window.external
Load hosted HTML content from a stream or stringAccess the document object loaded in the WebBrowser
New ControlsDataGrid Control
Available from WPF Toolkit (www.codeplex.com/wpf)CTP Release with several features, being further improved upon
Ribbon-UI ControlPart of a future release with other controls and style templates
Performance EnhancementsGreatly improved cold start time
>15% cold start gains for small apps>35% cold start gains for large apps
XBAP cold start improvements (real + perceived)
~10% faster XBAP cold start in addition to gains above by improving the concurrency of the ClickOnce download sequence Instant (HTML) download progress UX to improves perceived XBAP startup
Performance Enhancements
Splash Screen to improve perceived startup for Standalone apps
New public SplashScreen APIsIntuitive VS integration (3 clicks to enable)“Add / New Item…/SplashScreen (WPF)”Sample code available for existing apps or for downlevel targeting
Downloadable VS Template from WPF Futures (www.codeplex.com/wpf)
Perf ToolsSnoop
Generally useful to understand your app, view element tree.
WPFPerf Suite Perf “power toy”, a set of diagnostic tools
Visual Studio Profiler Great for CPU profilingVS Developer Edition and VS Team Suite
CLR Profiler for .NETShows managed memory usage and leaks
Perf ToolsSnoop
Use to understand the size of the app Visual treeUseful to detect Virtualization related issues & large app trees
Perf ToolsSnoop
Customer app lessons learned: Watch for conditions that may turn virtualization off:
• Make sure ScrollViewer.CanContentScroll=True• Make sure VirtualizingStackPanel.IsVirtualizing=True• Keep VirtualizingStackPanel as your default panel …or write own virtualized
panel.• Avoid Grouping
# of elements can grow also when using rich templates
Use Snoop to watch element count
Perf ToolsWPF Perf Suite
Available for external download (WPF SDK & forums)Initial diagnosis of over-invalidation & software renderingA set of tools:
Perforator: Analyzes general rendering behaviorVisual Profiler: Provides breakdown of an object's use of WPF services, such as rendering and layout String profiler (new): Analyzes where strings are being allocated Event Trace: Analyze events and generating event log filesTrace Viewer: Record, display, and browse ETW log files in a WPF user-interface format
Perf ToolsWPF Perf Suite: Perforator
To detect low perf b/c SW rendering:Tint SW rendering: Draws purple when falling back to SW (or when SW api used, old driver, card, layered windows on XP, etc)# SW Render Targets: If not 0, significant perf problem (old card, layered windows on XP)# HW Render Targets: # should be equal to the number of app windows times # of display adapters. Indicates app running in HW
Low perf indicatorsLarge # of Intermediate Render Targets: additional images that WPF needs in order to get content ready for drawingMaximum SW/HW IRTs per Frame: Shows max # of surfaces needed to render any one frame of the application. Usually caused by the use of DrawingBrush, VisualBrush, Opacity, or Tile modes on a TileBrush. If # high (e.g. > 7), indicates a potential perf issue
Perf Tools - Perforator
Perf ToolsWPF Perf Suite: Visual Profiler
Inspect the Visual Tree Show “hot path” of layout time: Tints the elements in the tree based on their time spent in layoutShows inclusive/exclusive times and element countsHistory graph of time breakdown: Helps identify whether an application’s bottlenecks lie in layout, rendering, animation, etc
Perf Tools - Visual Profiler
Perf ToolsETW Event Trace & Event Trace Viewer
Useful to view low-level WPF ETW events. WClientUceNotifyPresent: Use to calculate frames-per-second rendering perf (e.g. during animation, video, etc) WClientLayout: Use to calculate time app spends in laying out controls (e.g. during resize)
Can also use Xperf/Xperfinfo
ReferencesWhat’s new in WPF 3.5 SP1?
http://windowsclient.net/wpf/wpf35/wpf-whats-new-35sp1.aspx
Introducing .NET Framework Client Profile http://windowsclient.net/wpf/wpf35/wpf-intro-client-profile.aspx
Optimizing WPF App Performance MSDN paperhttp://msdn2.microsoft.com/en-us/library/aa970683.aspx
Snoop tool http://www.blois.us/Snoop
Various performance related blog http://blogs.msdn.com/jgoldb
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