Will managed C++ (CLI) code ported from C# work faster than original C#? ( tcp server)

Question

So we created simple C# tcp sever for video sharing. all it does is simple and shall be done "life" - recive live video packed into container (FLV in our case) from some broadcaster and share recived stream with all subscribers (means open container and create new containers and make timestamps on container structure but not decode contents of packets in any way). We tested our server but found out that its performance is not enough for 5 incoming streamers and 10 outgoing streams. Fe found this app for porting. We will try it any way but before we try I wonder if any of you have tried such thing on any of your projects. So main question - is will C++ CLI make app faster than original C#?

Answer 1

No.

Writing the same code in a different language won't make any difference whatsoever; it will still compile to the same IL.

C# is not a slow language; you probably have some higher-level performance issues.
You should optimize your existing code.

Answer 2

Not for most code , however if the code does a lot of bit level operations maybe. Likewise if you can safely make use of unmanaged memory to reuse the load on the garbage collector.

So just doing a translation of the code to managed C++ is very unlikely to have a benefit for most code, however managed C++ may let you write some code in a more complex, (and unsafe) way that runs faster.

Answer 3

No- not at all. C++/CLI runs on the same .NET platform as C#, effectively preventing any speed increase purely by changing language. Native C++ on the other hand may yield some benefits, but it's best to be very careful. You're most likely to yield performance benefits from a profiler than changing language, and you should only consider changing language after extensive testing of the language and code that you have.

Answer 4

如果要通过P / Invoke方法从本机DLL中调用某些函数，则至少使用IJW（It Just Works）将这些回调机制转换为C ++ / Cli会提高性能。