Sandbox Virtual Machine for an Application (C++ vs. C#)

I'd like to write a sandbox virtual machine for executing a compiled program. How do you think: whi开发者_开发技巧ch of these two languages would be better to use if we consider performance? Or maybe you suggest another one?

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The performance of your VM will be much more affected by how you implement it rather in what language. If you implement it the same way in c# and c++ the performance will be comparable.

The thing that speaks in favor of c++ is that you can execute parts of the native code from your sandboxed application directly. It is possible to do the same in c#, but that requires some translation and emitting corresponding byte code with Reflection.Emit.

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You can't do this in C#, I guess, because there are several things that would require assembler, not talking about unmanaged code itself. So C++ with some assembler would be the only option.