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From: "=?utf-8?b?TWF0dGlhcyBFbmdkZWfDpQ==?=  =?utf-8?b?cmQ=?=" <mattias@virtutech.se>
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In-reply-to: <01677251-3A8D-4DCA-9E39-7D17FAC92645@gmail.com> (message from
	Joel Reymont on Thu, 11 Sep 2008 13:43:55 +0100)
Subject: Re: [Caml-list] ocamlnet and kernel poll
References:  <01677251-3A8D-4DCA-9E39-7D17FAC92645@gmail.com>
Message-Id: <20080911143735.EF7EC29B2A@kicki.hq.vtech>
Date: Thu, 11 Sep 2008 16:37:35 +0200 (CEST)
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X-Spam: no; 0.00; mattias:01 mattias:01 ocamlnet:01 ocamlnet:01 ocaml:01 ocaml:01 parallelism:01 caml-list:01 inefficient:02 kernel:02 kernel:02 seems:03 handles:03 typed:04 processors:04 

>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.