From: "Chris Friesen" <cfriesen@nortel.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: Renzo Davoli <renzo@cs.unibo.it>, linux-kernel@vger.kernel.org
Subject: Re: New Address Family: Inter Process Networking (IPN)
Date: Thu, 06 Dec 2007 14:36:54 -0600 [thread overview]
Message-ID: <47585D66.3000404@nortel.com> (raw)
In-Reply-To: <20071206163538.GC20595@one.firstfloor.org>
Andi Kleen wrote:
>>"This document describes Linux Netlink, which is used in Linux both as
>> an intra-kernel messaging system as well as between kernel and user
>> space."
>
>
> It can be used between user space daemons as well. In fact it is.
> e.g. they often listen to each other's messages.
One problem we ran into was that there are only 32 multicast groups per
netlink protocol family.
We had a situation where we could have used netlink, but we needed the
equivalent of thousands of multicast groups. Latency was very
important, so we ended up doing essentially a multicast unix socket
rather than taking the extra penalty for UDP multicast.
Chris
next prev parent reply other threads:[~2007-12-06 20:37 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-05 16:40 New Address Family: Inter Process Networking (IPN) Renzo Davoli
2007-12-05 21:55 ` Stephen Hemminger
2007-12-06 5:38 ` Renzo Davoli
2007-12-06 5:43 ` Renzo Davoli
2007-12-06 6:04 ` Stephen Hemminger
2007-12-05 23:39 ` Andi Kleen
2007-12-06 5:30 ` Renzo Davoli
2007-12-06 6:19 ` Kyle Moffett
2007-12-06 6:59 ` David Newall
2007-12-06 16:34 ` Andi Kleen
2007-12-06 22:21 ` David Newall
2007-12-06 22:42 ` Andi Kleen
2007-12-06 16:35 ` Andi Kleen
2007-12-06 20:36 ` Chris Friesen [this message]
2007-12-06 21:26 ` Andi Kleen
2007-12-06 21:49 ` Chris Friesen
2007-12-06 22:07 ` Andi Kleen
2007-12-06 22:18 ` Renzo Davoli
2007-12-06 22:38 ` Andi Kleen
2007-12-07 0:18 ` Renzo Davoli
2007-12-06 23:02 ` Chris Friesen
2007-12-06 23:06 ` Andi Kleen
2007-12-06 23:42 ` Chris Friesen
2007-12-07 3:41 ` David Miller
2007-12-07 4:21 ` Chris Friesen
2007-12-07 4:54 ` Ben Pfaff
2007-12-07 6:40 ` David Miller
2007-12-07 10:03 ` Andi Kleen
2007-12-07 21:18 ` AF_IPN: Inter Process Networking, try these Renzo Davoli
2007-12-08 2:07 ` David Miller
2007-12-10 16:05 ` New Address Family: Inter Process Networking (IPN) Chris Friesen
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