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From: Mathieu Chouquet-Stringer <mchouque@e-steel.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [UPDATE] Zerocopy patches, against 2.4.1-pre10
Date: 24 Jan 2001 16:45:57 -0500	[thread overview]
Message-ID: <m3d7dc62ui.fsf@shookay.e-steel.com> (raw)
In-Reply-To: <28560036253BD41191A10000F8BCBD116BDCD6@zcard00g.ca.nortel.com>

jearle@nortelnetworks.com ("Jonathan Earle") writes:

> > I'm back from OZ, and to help deal with my sudden lack of Victoria
> > Bitter, I've made a new zerocopy patch set.
> 
> What are "zerocopy patch set"s?

Basically, if you want to send something to the network, the kernel has to
copy your data to its memory space. It is an overhead and with these
patches, the kernel doesn't has to do it. So it is faster. Moreover, few
ethernet cards are able to compute the ip checksum so linux doesn't need
anymore to do that.
-- 
Mathieu CHOUQUET-STRINGER              E-Mail : mchouque@e-steel.com
     Learning French is trivial: the word for horse is cheval, and
               everything else follows in the same way.
                        -- Alan J. Perlis
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  reply	other threads:[~2001-01-24 21:46 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-01-24 21:34 [UPDATE] Zerocopy patches, against 2.4.1-pre10 Jonathan Earle
2001-01-24 21:45 ` Mathieu Chouquet-Stringer [this message]
2001-01-31 22:42   ` Rogerio Brito
2001-01-24 21:52 Jonathan Earle
2001-01-24 23:33 ` Peter Samuelson
     [not found] <200101242123.NAA00986@pizda.ninka.net>
2001-01-25  1:40 ` Andrew Morton
2001-01-25 19:29   ` kuznet
2001-01-25 20:28     ` Ion Badulescu
2001-01-25 20:36       ` kuznet
2001-01-25 20:43     ` David S. Miller
2001-01-25 21:11       ` Ion Badulescu
2001-01-26 19:43         ` kuznet
2001-01-29 22:02         ` David S. Miller
2001-01-25 21:14       ` David S. Miller
2001-01-25 21:29         ` Steve Whitehouse
2001-01-31 16:04           ` Alan Cox
2001-01-25 21:38         ` David S. Miller
2001-01-26  6:06         ` Ion Badulescu
2001-01-26 13:13         ` David S. Miller
2001-01-26 20:43           ` Ion Badulescu
2001-01-27  0:55             ` Ion Badulescu
2001-01-27 18:39               ` kuznet
2001-01-27 21:18                 ` Ion Badulescu
2001-01-30  6:02                 ` David S. Miller
2001-01-26  1:27     ` Andrew Morton
2001-01-25  9:29 ` David S. Miller

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