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From: Gianni Tedesco <gianni@ecsc.co.uk>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Larry McVoy <lm@bitmover.com>,
	Thomas Ogrisegg <tom@rhadamanthys.org>,
	"David S. Miller" <davem@redhat.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] TCP Zero Copy for mmapped files
Date: 06 Jan 2003 14:36:19 +0000	[thread overview]
Message-ID: <1041863779.13078.3.camel@lemsip> (raw)
In-Reply-To: <1041559195.24901.119.camel@irongate.swansea.linux.org.uk>

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On Fri, 2003-01-03 at 01:59, Alan Cox wrote:
> You may not be doing an mmap a send, its more likely to look like
> 
> 	page = hash(url);
> 	memcpy(current_time, page->clock, TIMESIZE);
> 	write(sock, page->data, page->len);

If your web data rarely changes, it could also be all the files stored
in a hashfile database covered by one large mmap, eliminating filesystem
overhead (and vma overhead).

-- 
// Gianni Tedesco (gianni at scaramanga dot co dot uk)
lynx --source www.scaramanga.co.uk/gianni-at-ecsc.asc | gpg --import
8646BE7D: 6D9F 2287 870E A2C9 8F60 3A3C 91B5 7669 8646 BE7D

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  reply	other threads:[~2003-01-06 14:26 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-12-30  1:09 [PATCH] TCP Zero Copy for mmapped files Thomas Ogrisegg
2002-12-30  1:29 ` Larry McVoy
2003-01-02  6:37   ` David S. Miller
2003-01-02 22:12     ` Thomas Ogrisegg
2003-01-02 22:28       ` Larry McVoy
2003-01-02 23:20         ` Alan Cox
2003-01-02 23:16           ` David S. Miller
2003-01-03  0:56             ` Alan Cox
2003-01-03  2:40               ` David S. Miller
2003-01-03  2:41               ` Linus Torvalds
2003-01-02 23:13       ` David S. Miller
2003-01-03  0:45         ` Thomas Ogrisegg
2003-01-03  1:01           ` Larry McVoy
2003-01-03  1:59             ` Alan Cox
2003-01-06 14:36               ` Gianni Tedesco [this message]
2003-01-06 23:29                 ` David S. Miller
2003-01-03  1:56           ` Alan Cox
2003-01-03  1:27             ` Larry McVoy
2003-01-03  2:42           ` David S. Miller

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