Question

I know that in java when u want to create a high performance server you use nio instead of the regular socket.
So is there such a thing for C#, to create high performance servers?

Answer 1

Yes, SocketAsyncEventArgs:

The SocketAsyncEventArgs class is part
of a set of enhancements to the
System.Net.Sockets.Socket class that
provide an alternative asynchronous
pattern that can be used by
specialized high-performance socket
applications. This class was
specifically designed for network
server applications that require high
performance. An application can use
the enhanced asynchronous pattern
exclusively or only in targeted hot
areas (for example, when receiving
large amounts of data).