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Date:      Sun, 16 Dec 2001 18:56:00 +0000
From:      Dominic Marks <dominic_marks@btinternet.com>
To:        Roy Sigurd Karlsbakk <roy@karlsbakk.net>
Cc:        <freebsd-questions@FreeBSD.ORG>
Subject:   Re: in-kernel web server???
Message-ID:  <E16FgRu-0004rm-00@gadolinium.btinternet.com>
In-Reply-To: <Pine.LNX.4.30.0112161933200.5821-100000@mustard.heime.net>
References:  <Pine.LNX.4.30.0112161933200.5821-100000@mustard.heime.net>

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On Sunday 16 December 2001 6:36 pm, Roy Sigurd Karlsbakk wrote:
> > Have you experimented with FTP and NFS copy speeds for
> > comparison?
>
> I can't use them. Currently, I heed to run http.
>
> > AFAIK FreeBSD does not support zero copy. There are some patches
> > floating around but I have no knowledge about them.
>
> Are you sure?
>
> According to Paal Halvorsen, PhD on 'improving i/o performance on
> multimedia systems' (see
> http://ConfMan.unik.no/~paalh/index2.html), he says sendfile() is
> supported under FreeBSD.

Sendfile is supported. As I understand it being able to do zero copy 
memory access and using sendfile are not the same thing. Sendfile may 
be implemented with zero copy, or it may not. I may be wrong with 
this issue.

> roy

-- 
Dominic

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