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List:       linux-kernel
Subject:    Re: [PATCH] TCP Zero Copy for mmapped files
From:       "David S. Miller" <davem () redhat ! com>
Date:       2003-01-06 23:29:18
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   From: Gianni Tedesco <gianni@ecsc.co.uk>
   Date: 06 Jan 2003 14:36:19 +0000
   
   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).

You still would eat a VMA lookup each and every send.
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