linux-kernel - Re: [PATCH 0/10] af_unix: add multicast and filtering features to AF

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Message-Id: <20120227.140535.1623396420455657443.davem@davemloft.net>
Date:	Mon, 27 Feb 2012 14:05:35 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	javier.martinez@...labora.co.uk
Cc:	javier@...labora.co.uk, eric.dumazet@...il.com,
	lennart@...ttering.net, kay.sievers@...y.org,
	alban.crequy@...labora.co.uk, bart.cerneels@...labora.co.uk,
	rodrigo.moya@...labora.co.uk, sjoerd.simons@...labora.co.uk,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/10] af_unix: add multicast and filtering features to
 AF_UNIX

From: Javier Martinez Canillas <javier.martinez@...labora.co.uk>
Date: Mon, 27 Feb 2012 15:00:06 +0100

> Primary for performance reasons. D-bus is an IPC system for processes in
> the same machine so traversing the whole TCP/IP stack seems a little
> overkill to me.

You haven't actually tested what the cost of this actually is, so what
you're saying is mere speculation.  In many cases TCP/UDP over
loopback is actually faster than AF_UNIX.

Since this is the premise of your whole rebuttal, I'll simply stop
reading here.
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