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Re: Mach ports use

From: Thomas Bushnell, BSG
Subject: Re: Mach ports use
Date: 28 Oct 2002 14:59:03 -0800
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2

nisse@lysator.liu.se (Niels Möller) writes:

> And for high performance, I suspect the right way to do it is to share
> some buffer space (preferably shared all the way down to the
> network card), and send a messages when a packet is written to the
> buffer, and when a packet have been completely processed so that the
> buffer can be reused.

Sending a message with data is not any more expensive than sending one
without, generally.  The exceptions are for cases of large packets.
In that case, however, we want to use out-of-band message passing,
which should be fast.

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