From mboxrd@z Thu Jan  1 00:00:00 1970
From: Karsten Desler <kdesler@soohrt.org>
Subject: Re: _High_ CPU usage while routing (mostly) small UDP packets
Date: Tue, 7 Dec 2004 04:24:38 +0100
Message-ID: <20041207032438.GA7767@soohrt.org>
References: <20041206224107.GA8529@soohrt.org> <E1CbSf8-00047p-00@calista.eckenfels.6bone.ka-ip.net> <20041207002012.GB30674@quickstop.soohrt.org> <1102387595.1088.48.camel@jzny.localdomain> <20041207025456.GA525@soohrt.org> <1102389533.1089.51.camel@jzny.localdomain>
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Cc: Bernd Eckenfels <ecki-news2004-05@lina.inka.de>,
	"David S. Miller" <davem@davemloft.net>, netdev@oss.sgi.com,
	linux-kernel@vger.kernel.org
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To: jamal <hadi@cyberus.ca>
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* jamal wrote:
> > 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.
> > 
> 
> cant tell offhand; it looks like a modern piece of hardware.
> Are you sure you are using NAPI? This is an e1000, correct?
> 

Yes and yes.

0000:01:01.0 Ethernet controller: Intel Corp. 82545EM Gigabit Ethernet Controller (Fiber) (rev 01)
0000:01:03.0 Ethernet controller: Intel Corp. 82546GB Gigabit Ethernet Controller (rev 03)

driver: e1000
version: 5.5.4-k2-NAPI
firmware-version: N/A
bus-info: 0000:01:03.0

driver: e1000
version: 5.5.4-k2-NAPI
firmware-version: N/A
bus-info: 0000:01:01.0