From: "Benjamin C.R. LaHaise" <blah@kvack.org>
To: "David S. Miller" <davem@redhat.com>
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
Date: Mon, 26 Feb 2001 19:11:20 -0500 (EST) [thread overview]
Message-ID: <Pine.LNX.3.96.1010226190859.12521B-100000@kanga.kvack.org> (raw)
In-Reply-To: <15002.61250.224811.987948@pizda.ninka.net>
On Mon, 26 Feb 2001, David S. Miller wrote:
> 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.
Hmmm, one way around this is to have the packet queue store things in
in a linear array of pointers to data areas, then process things in
bursts, ie:
- find packet data areas for queued packets
- walk list doing prefetches of ip header and options
- then actually do the packet processing (save output for later)
That will require a number of new hooks for pipelining operations, though.
Just a thought.
-ben
next prev parent reply other threads:[~2001-02-27 0:15 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-23 6:59 [UPDATE] zerocopy BETA 3 David S. Miller
2001-02-23 10:42 ` Jan Rekorajski
2001-02-25 3:38 ` Chris Wedgwood
2001-02-25 3:54 ` Jan Rekorajski
2001-02-26 23:25 ` [UPDATE] zerocopy.. While working on ip.h stuff David S. Miller
2001-02-26 23:47 ` Benjamin C.R. LaHaise
2001-02-27 0:05 ` David S. Miller
2001-02-27 0:11 ` Benjamin C.R. LaHaise [this message]
2001-02-27 3:41 ` Michael Peddemors
2001-02-27 3:24 ` Michael Peddemors
2001-02-26 23:46 ` Michael Peddemors
2001-02-26 23:23 ` Andi Kleen
2001-02-26 5:28 ` [UPDATE] zerocopy BETA 3 David S. Miller
[not found] <2137.983232656@ISI.EDU>
2001-02-27 1:53 ` [UPDATE] zerocopy.. While working on ip.h stuff Michael Peddemors
2001-02-27 2:31 ` Craig Milo Rogers
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