From: Jesse Pollard <jesse@cats-chateau.net>
To: "Ihar 'Philips' Filipau" <filia@softhome.net>,
Werner Almesberger <werner@almesberger.net>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: TOE brain dump
Date: Mon, 4 Aug 2003 08:08:50 -0500 [thread overview]
Message-ID: <03080408085000.03433@tabby> (raw)
In-Reply-To: <3F2E1F7B.3020906@softhome.net>
On Monday 04 August 2003 03:55, Ihar 'Philips' Filipau wrote:
> Werner Almesberger wrote:
> > Ihar 'Philips' Filipau wrote:
> >> Modern NPUs generally do this.
> >
> > Unfortunately, they don't - they run *some* code, but that
> > is rarely a Linux kernel, or a substantial part of it.
>
> Embedded CPU we are using is based MIPS, and has a lot of specialized
> instructions.
> It makes not that much sense to run kernel (especially Linux) on CPU
> which is optimized for handling of network packets. (And has actually
> several co-processors to help in this task).
> How much sense it makes to run general purpose OS (optimized for PCs
> and servers) on devices which can make only couple of functions? (and no
> MMU btw)
> It is a whole idea behind this kind of CPUs - to do a few of
> functions - but to do them good.
>
> If you will start stretching CPUs like this to fit Linux kernel - it
> will generally just increase price. Probably there are some markets
> which can afford this.
>
> Remeber - "Small is beatiful" (c) - and linux kernel far from it.
> Our routing code which handles two GE interfaces (actually not pure
> GE, but up to 2.5GB) fits into 3k. 3k of code - and that's it. not 650kb
> of bzip compressed bloat. And it handles two interfaces, handles fast
> data path from siblign interfaces, handles up to 1E6 routes. 3k of code.
> not 650k of bzip.
And it handles ipfilter?
and LSM security hooks?
how about IPSec?
and IPv6?
I don't think so.
next prev parent reply other threads:[~2003-08-04 13:09 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <g83n.8vu.9@gated-at.bofh.it>
2003-08-03 12:13 ` TOE brain dump Ihar 'Philips' Filipau
2003-08-03 18:10 ` Werner Almesberger
2003-08-04 8:55 ` Ihar 'Philips' Filipau
2003-08-04 13:08 ` Jesse Pollard [this message]
2003-08-04 19:32 ` Werner Almesberger
2003-08-04 19:48 ` David Lang
2003-08-04 19:56 ` Werner Almesberger
2003-08-04 20:01 ` David Lang
2003-08-04 20:09 ` Werner Almesberger
2003-08-04 20:24 ` David Lang
2003-08-05 1:38 ` Werner Almesberger
2003-08-05 1:46 ` David Lang
2003-08-05 1:54 ` Larry McVoy
2003-08-05 2:30 ` Werner Almesberger
2003-08-06 1:47 ` Val Henson
2003-08-05 3:04 ` Werner Almesberger
2003-08-04 23:30 ` Peter Chubb
2003-08-04 18:36 Perez-Gonzalez, Inaky
2003-08-04 19:03 ` Alan Cox
[not found] <gq0f.8bj.9@gated-at.bofh.it>
[not found] ` <gvCD.4mJ.5@gated-at.bofh.it>
[not found] ` <gJmp.7Th.33@gated-at.bofh.it>
[not found] ` <gNpS.2YJ.9@gated-at.bofh.it>
2003-08-04 14:15 ` Ihar 'Philips' Filipau
2003-08-04 14:56 ` Jesse Pollard
2003-08-04 15:51 ` Ihar 'Philips' Filipau
-- strict thread matches above, loose matches on Subject: below --
2003-08-02 17:04 Werner Almesberger
2003-08-02 17:32 ` Nivedita Singhvi
2003-08-02 18:06 ` Werner Almesberger
2003-08-02 19:08 ` Jeff Garzik
2003-08-02 21:49 ` Werner Almesberger
2003-08-03 6:40 ` Jeff Garzik
2003-08-03 17:57 ` Werner Almesberger
2003-08-03 18:27 ` Erik Andersen
2003-08-03 19:40 ` Larry McVoy
2003-08-03 20:13 ` David Lang
2003-08-03 20:30 ` Larry McVoy
2003-08-03 21:21 ` David Lang
2003-08-03 23:44 ` Larry McVoy
2003-08-03 21:58 ` Jeff Garzik
2003-08-05 19:28 ` Timothy Miller
2003-08-03 20:34 ` jamal
2003-08-04 1:47 ` Glen Turner
2003-08-04 3:48 ` Larry McVoy
2003-08-06 7:12 ` Andre Hedrick
[not found] ` <Pine.LNX.4.10.10308060009130.25045-100000@master.linux-ide .org>
2003-08-06 8:20 ` Lincoln Dale
2003-08-06 8:22 ` David S. Miller
2003-08-06 13:07 ` Jesse Pollard
2003-08-03 19:21 ` Eric W. Biederman
2003-08-04 19:24 ` Werner Almesberger
2003-08-04 19:26 ` David S. Miller
2003-08-05 17:19 ` Eric W. Biederman
2003-08-06 5:13 ` Werner Almesberger
2003-08-06 7:58 ` Eric W. Biederman
2003-08-06 13:37 ` Werner Almesberger
2003-08-06 15:58 ` Andy Isaacson
2003-08-06 16:27 ` Chris Friesen
2003-08-06 17:01 ` Andy Isaacson
2003-08-06 17:55 ` Matti Aarnio
2003-08-07 2:14 ` Lincoln Dale
2003-08-06 12:46 ` Jesse Pollard
2003-08-06 16:25 ` Andy Isaacson
2003-08-06 18:58 ` Jesse Pollard
2003-08-06 19:39 ` Andy Isaacson
2003-08-06 21:13 ` David Schwartz
2003-08-03 4:01 ` Ben Greear
2003-08-03 6:22 ` Alan Shih
2003-08-03 6:41 ` Jeff Garzik
2003-08-03 8:25 ` David Lang
2003-08-03 18:05 ` Werner Almesberger
2003-08-03 22:02 ` Alan Shih
2003-08-03 20:52 ` Alan Cox
2003-08-04 14:36 ` Ingo Oeser
2003-08-04 17:19 ` Alan Shih
2003-08-05 8:15 ` Ingo Oeser
2003-08-02 20:57 ` Alan Cox
2003-08-02 22:14 ` Werner Almesberger
2003-08-03 20:51 ` Alan Cox
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