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POStrange performance increase in projects compiled in VS 2008 comparing with VS2005
 

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  1. POStrange performance increase in projects compiled in VS 2008 comparing with VS2005
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    <p>I have a 3rd party library and a simple benchmark test that I write by myself to test this library for performance. 3rd party library is C++/CLI .NET library and most code there is unmanaged. This library is assembled for .NET Framework 2.0. My benchmark test is managed C# code that adds little overhead to the library, only simple calls to the methods, subscription to event handlers, closing/opening connections etc. Library performs some operations in multiple working threads, it also deals with sockets.</p> <p>Strange thing - when I compile by benchmark test with VS 2005 and when I do the same with VS 2008 - I got different performance values (VS 2008 is 10% better). </p> <p>What can cause the performance increase, if all my code uses only .NET 2.0 features, no language/features or libraries from 3.5 are used. My benchmark project refers only System.dll and 3rd party dll, and benchmark code is absolutely the same in VS2005 and VS2008 projects ? </p>
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    1. COI would greatly appreciate any links to articles, blogs etc. where any performance differences between VS2005 and VS2008 compilers/JIT are discussed. I wounder, can I recommend our customers to recompile existing VS2005 projects in VS2008 (if they have VS2008) to gain some performance?
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