From owner-freebsd-net  Fri Jul 20 11:18:19 2001
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Date: Fri, 20 Jul 2001 13:11:30 -0700 (PDT)
From: Julian Elischer <julian@elischer.org>
To: raviprasad20@netscape.net
Cc: freebsd-net@freebsd.org
Subject: Re: why mbuf?
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Do you mean why did the original BSD people choose the methos used in 
the mbuf code in 1982 (or whenever)? 

1/ copying data is a waste of time
2/ incoming packets are of unpredictable size
 but tend to be either full-size or small with few in between.
3/ memory was expensive and slow

On Fri, 20 Jul 2001 raviprasad20@netscape.net wrote:

> Hi,
> 
> My question is why did you choose mbuf? 
> is it because you are writing the code in unix systems?
> Is it because mbufs allow us to avoid coping as much as possible?
> 
> I feel that a linear buffer might have saved some of the mbuf 
> modifications.
> 
> regards
> ravi prasad
> 
> 
> 
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