From: Con Kolivas <kernel@kolivas.org>
To: Karsten Desler <kdesler@soohrt.org>
Cc: "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, 07 Dec 2004 10:56:58 +1100 [thread overview]
Message-ID: <cone.1102377418.20012.4626.502@pc.kolivas.org> (raw)
In-Reply-To: 20041206224107.GA8529@soohrt.org
Karsten Desler writes:
> * David S. Miller wrote:
>> It's spending nearly half of it's time in iptables.
>> Try to consolidate your rules if possible. This is the
>> part of netfilter that really doesn't scale well at all.
>>
>
> Removing the iptables rules helps reducing the load a little, but the
> majority of time is still spent somewhere else.
I had a similar scenario recently with a very low spec box and found it to
be the QoS. Disabling traffic shaping and removing the QoS modules made it
much faster. I don't know if you're using them but it's worth pointing out.
Cheers,
Con
next prev parent reply other threads:[~2004-12-06 23:56 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 [this message]
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
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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