From: Karsten Desler <kdesler@soohrt.org>
To: jamal <hadi@cyberus.ca>
Cc: Bernd Eckenfels <ecki-news2004-05@lina.inka.de>,
"David S. Miller" <davem@davemloft.net>,
netdev@oss.sgi.com, linux-kernel@vger.kernel.org
Subject: Re: _High_ CPU usage while routing (mostly) small UDP packets
Date: Tue, 7 Dec 2004 03:54:56 +0100 [thread overview]
Message-ID: <20041207025456.GA525@soohrt.org> (raw)
In-Reply-To: <1102387595.1088.48.camel@jzny.localdomain>
* jamal wrote:
>
> Your numbers are very suspect. You may be having other issues in the
> box. You should be able to do much higher packet rates even with
> iptables compiled in.
I know, and I have no idea why I'm not.
> Some numbers at:
>
> http://www.suug.ch/sucon/04/slides/pkt_cls.pdf
>
> If all you need is std filtering then consider using tc actions.
Thanks, I'll look into it.
> I do have a suspicion that your problem has to do with your machine
> more than it does with Linux.
But what could be the reason? I'm really out of ideas.
The only thing I can think off is the 66/64 PCI bus and the
disadvantageous placement of the PCI cards, but neither should cause a
higher CPU usage. If the bus couldn't keep up, I'd get packetloss.
- Karsten
next prev parent reply other threads:[~2004-12-07 2:54 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-06 20:53 _High_ CPU usage while routing (mostly) small UDP packets Karsten Desler
2004-12-06 21:48 ` David S. Miller
2004-12-06 22:41 ` Karsten Desler
2004-12-06 23:56 ` Con Kolivas
2004-12-07 0:18 ` Karsten Desler
[not found] ` <E1CbSf8-00047p-00@calista.eckenfels.6bone.ka-ip.net>
2004-12-07 0:20 ` Karsten Desler
2004-12-07 2:46 ` jamal
2004-12-07 2:54 ` Karsten Desler [this message]
2004-12-07 3:18 ` jamal
2004-12-07 3:24 ` Karsten Desler
2004-12-07 3:30 ` jamal
2004-12-07 4:02 ` Karsten Desler
2004-12-07 10:21 ` Karsten Desler
2004-12-07 12:34 ` jamal
2004-12-07 13:14 ` Karsten Desler
2004-12-07 10:47 ` P
2004-12-07 11:21 ` Karsten Desler
2004-12-07 12:38 ` Robert Olsson
2004-12-07 12:50 ` Karsten Desler
2004-12-07 13:04 ` jamal
2004-12-07 13:11 ` Karsten Desler
2004-12-07 13:39 ` P
2004-12-07 18:38 ` Karsten Desler
2004-12-08 5:39 ` Willy Tarreau
2004-12-08 13:08 ` Karsten Desler
2004-12-08 13:27 ` jamal
2004-12-07 21:10 ` Karsten Desler
2004-12-07 22:40 ` Robert Olsson
2004-12-08 22:06 ` Karsten Desler
2004-12-08 4:31 ` jamal
2004-12-08 13:26 ` Karsten Desler
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