I think you need to do some research about non-blocking IO, say epoll or asio. It is currently the most effective way to work with multiple connections simultaneously.

You can start here, for example.

Some performance analysis can be found here or here.

You didn't specify OS, so I will assume it's Linux we're talking about. I think you need to do some research about non-blocking IO, say epoll or asio. It is currently the most effective and scalable way to work with multiple connections simultaneously.

You can start here, for example.

Some performance analysis can be found here or here.