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Check out this presentation on UDT protocol:

http://udt.sourceforge.net/doc/udt-2009.ppt

It details the problems of TCP, names most alternatives, and describes UDT work. I used to use UDT to eliminate TCP's problems. It's just bad design and the fact that changing it is usually a kernel modification. Hence, all these application-level alternatives with UDT being most general-purpose and one of best.

Be interesting to see if someone can adapt it to games. For now, probably best to use game-specific model as in article and comments. UDT for other stuff where you control how the app works on both ends. TCP where you control one side.




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