>Suppose I want to build a server that runs on top of ocamlnet and  
>handles 10k+ connections.
>
>ocamlnet seems to use select exclusively.
>
>Any suggestions on how to add kernel poll? Is this possible even?

There is an ocaml wrapper for libevent: http://www.xs4all.nl/~mmzeeman/ocaml/

With that many connections, you may actually benefit from multiple
processors, which in the OCaml world usually means multiple processes.

There's nothing wrong with serving myriads of connections from a
single process, especially when using a strongly typed language, but
parallelism can be useful. On the other hand, one process per
connection may be inefficient as well - a hybrid N:M solution is
probably best.