>'Chat' is a TCP protocol, AFAIK.
I realize that TCP more suitable for chat, but I was just wondering if I WOULD implement it in UDP (with my own check if a packet arrived) I would have the benefit of having 100.000+ "loose" UDP connections on my server?
I know reinventing TCP isn't generally the smartest thing to do, this may however be an exception because of the nasty 25k limit?
I can't really test the UDP server limit because building more than a few thousand UDP clients locks on a single box as well. But from what I understand the server just receives all the UDP packets in serial way, where it doesn't matter how many clients are behind them?
>IOCP and/or overlapped I/O is not trivial, surely, but is certainly possible
>with Delphi. I have had the max. 24/25 k connections open with W2k Pro
>without too much of a problem.
I really wonder how big services pull this off. Doesn't MSN have millions of people logged in? Is that UDP or just 40 server machines per million?
Thanks for the input.
