http://byteflux.me/index.php/2009/08/17/creating-a-type-safe-implementation-of-the-inotifypropertychanged-interface/ Sebastian Negomireanu's Weblog Thu, 06 Oct 2011 05:40:52 +0000 hourly 1 http://wordpress.org/?v= http://byteflux.me/index.php/2009/08/17/creating-a-type-safe-implementation-of-the-inotifypropertychanged-interface/comment-page-1/#comment-169 Sebastian Negomireanu Mon, 21 Mar 2011 14:53:41 +0000 http://byteflux.me/index.php/2009/08/17/creating-a-type-safe-implementation-of-the-inotifypropertychanged-interface/#comment-169 Well I am using this mechanism in several large projects (WPF and full Silverlight framework) and so far I could not see any visible performance penalty (also the profiler did not report these expressions as hotspots). Since the expressions are used in a short scope, they won't reach Gen 1 or Gen 2 so they will be quickly collected. Well I am using this mechanism in several large projects (WPF and full Silverlight framework) and so far I could not see any visible performance penalty (also the profiler did not report these expressions as hotspots). Since the expressions are used in a short scope, they won’t reach Gen 1 or Gen 2 so they will be quickly collected.

]]> http://byteflux.me/index.php/2009/08/17/creating-a-type-safe-implementation-of-the-inotifypropertychanged-interface/comment-page-1/#comment-168 What is the run-time cost? Fri, 18 Mar 2011 15:24:39 +0000 http://byteflux.me/index.php/2009/08/17/creating-a-type-safe-implementation-of-the-inotifypropertychanged-interface/#comment-168 I am worried about the run-time cost. If you have many property changed notifications, you will use a lot of Lambda expressions and instantiate lots of Expression<Func>. How will the garbage collector react to creating and destruction of all these small objecs. Using SilverLight on WindowsPhone the garbage collector will halt everything and collect when needed. I am worried about the run-time cost. If you have many property changed notifications, you will use a lot of Lambda expressions and instantiate lots of Expression<Func>. How will the garbage collector react to creating and destruction of all these small objecs. Using SilverLight on WindowsPhone the garbage collector will halt everything and collect when needed.

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