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Date: Tue, 01 Oct 2002 16:15:54 -0700 (PDT)
Message-Id: <20021001.161554.66190770.davem@redhat.com>
To: mau@oscar.prima.de
Cc: linux-kernel@vger.kernel.org
Subject: Re: LMbench results for 2.5.40
From: "David S. Miller" <davem@redhat.com>
In-Reply-To: <20021001220853.GA20022@oscar.dorf.de>
References: <20021001220853.GA20022@oscar.dorf.de>
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   From: Patrick Mau <mau@oscar.prima.de>
   Date: Wed, 2 Oct 2002 00:08:54 +0200
   
   Could someone explain the results I marked with '???' ?
   The ones under 'Local Communication Bandwidth'.

It's due to debugging code in the loopback net driver.
It copies every TCP data packet twice.  This will go away
before the 2.6 release.