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POIs C# really slower than say C++?
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  1. POIs C# really slower than say C++?
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    copied!<p>I've been wondering about this issue for a while now. </p> <p>Of course there are things in C# that aren't optimized for speed, so using those objects or language tweaks (like LinQ) may cause the code to be slower. </p> <p>But if you don't use any of those tweaks, but just compare the same pieces of code in C# and C++ (It's easy to translate one to another). Will it really be that much slower ?</p> <p>I've seen comparisons that show that C# might be even faster in some cases, because in theory the JIT compiler should optimize the code in real time and get better results: </p> <p><a href="http://www.grimes.nildram.co.uk/dotnet/man_unman.htm" rel="nofollow noreferrer">Managed Or Unmanaged?</a></p> <p>We should remember that the JIT compiler compiles the code at real time, but that's a 1-time overhead, the same code (once reached and compiled) doesn't need to be compiled again at run time.</p> <p>The GC doesn't add a lot of overhead either, unless you create and destroy thousands of objects (like using String instead of StringBuilder). And doing that in C++ would also be costly.</p> <p>Another point that I want to bring up is the better communication between DLLs introduced in .Net. The .Net platform communicates much better than Managed COM based DLLs. </p> <p>I don't see any inherent reason why the language should be slower, and I don't really think that C# is slower than C++ (both from experience and lack of a good explanation)..</p> <p>So, will a piece of the same code written in C# will be slower than the same code in C++ ?<br> In if so, then WHY ?</p> <p>Some other reference (Which talk about that a bit, but with no explanation about WHY):</p> <p><a href="https://stackoverflow.com/questions/787375/why-would-you-want-to-use-c-if-its-slower-than-c">Why would you want to use C# if its slower than C++?</a></p>
 

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