From: "David S. Miller" <davem@davemloft.net>
To: ioe-lkml@rameria.de
Cc: joern@wohnheim.fh-wedel.de, netdev@axxeo.de, simlo@phys.au.dk,
linux-kernel@vger.kernel.org, mingo@elte.hu,
netdev@vger.kernel.org
Subject: Re: Van Jacobson's net channels and real-time
Date: Sat, 22 Apr 2006 22:52:34 -0700 (PDT) [thread overview]
Message-ID: <20060422.225234.36558278.davem@davemloft.net> (raw)
In-Reply-To: <200604221529.59899.ioe-lkml@rameria.de>
From: Ingo Oeser <ioe-lkml@rameria.de>
Date: Sat, 22 Apr 2006 15:29:58 +0200
> On Saturday, 22. April 2006 13:48, Jörn Engel wrote:
> > Unless I completely misunderstand something, one of the main points of
> > the netchannels if to have *zero* fields written to by both producer
> > and consumer.
>
> Hmm, for me the main point was to keep the complete processing
> of a single packet within one CPU/Core where this is a non-issue.
Both are the important issues.
You move the bulk of the packet processing work to the end
cores of the system, yes. But you do so with an enormously
SMP friendly queue data structure so that it does not matter
at all that the packet is received on one cpu, yet processed
in socket context on another.
If you elide either part of the implementation, you miss the
entire point of net channels.
next prev parent reply other threads:[~2006-04-23 5:52 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-20 16:29 Esben Nielsen
2006-04-20 19:09 ` David S. Miller
2006-04-21 16:52 ` Ingo Oeser
2006-04-22 11:48 ` Jörn Engel
2006-04-22 13:29 ` Ingo Oeser
2006-04-22 13:49 ` Jörn Engel
2006-04-23 0:05 ` Ingo Oeser
2006-04-23 5:50 ` David S. Miller
2006-04-24 16:42 ` Auke Kok
2006-04-24 16:59 ` linux-os (Dick Johnson)
2006-04-24 17:19 ` Rick Jones
2006-04-24 18:12 ` linux-os (Dick Johnson)
2006-04-24 23:17 ` Michael Chan
2006-04-25 1:49 ` Auke Kok
2006-04-25 11:29 ` linux-os (Dick Johnson)
2006-05-02 12:41 ` Vojtech Pavlik
2006-05-02 15:58 ` Andi Kleen
2006-04-23 5:52 ` David S. Miller [this message]
2006-04-23 9:23 ` Avi Kivity
2006-04-23 5:51 ` David S. Miller
2006-04-23 5:56 ` David S. Miller
2006-04-23 14:15 ` Ingo Oeser
2006-04-22 19:30 ` bert hubert
2006-04-23 5:53 ` David S. Miller
2006-04-21 8:53 ` Jan Kiszka
2006-04-24 14:22 ` Esben Nielsen
2006-04-27 8:09 ` Jan Kiszka
2006-04-27 8:16 ` David S. Miller
2006-04-27 10:00 ` Jan Kiszka
2006-04-27 19:50 ` David S. Miller
[not found] <63KcN-6lD-25@gated-at.bofh.it>
[not found] ` <64wrg-2cg-41@gated-at.bofh.it>
[not found] ` <64wAE-2Cs-9@gated-at.bofh.it>
[not found] ` <64AkV-8cG-7@gated-at.bofh.it>
[not found] ` <65cqo-5tR-33@gated-at.bofh.it>
[not found] ` <65cJF-66i-11@gated-at.bofh.it>
2006-04-24 23:48 ` Robert Hancock
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