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From: "David S. Miller" <davem@redhat.com>
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Date: Mon, 26 Feb 2001 16:05:22 -0800 (PST)
To: "Benjamin C.R. LaHaise" <blah@kvack.org>
Cc: michael@linuxmagic.com, Jan Rekorajski <baggins@sith.mimuw.edu.pl>,
        Chris Wedgwood <cw@f00f.org>, linux-kernel@vger.kernel.org,
        netdev@oss.sgi.com, waltje@uWalt.NL.Mugnet.ORG
Subject: Re: [UPDATE] zerocopy.. While working on ip.h stuff
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Benjamin C.R. LaHaise writes:
 > Since the ip header fits in the cache of some CPUs (like the P4),
 > this becoming a cheaper operation than ever before.

At gigapacket rates, it becomes an issue.  This guy is talking about
tinkering with new IP _options_, not just the header.  So even if the
IP header itself fits totally in a cache line, the options afterwardsd
likely will not and thus require another cache miss.

Later,
David S. Miller
davem@redhat.com
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