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Date: Fri, 07 Dec 2001 18:42:25 +0200
From: Maxim Sobolev <sobomax@FreeBSD.org>
Organization: Vega International Capital
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To: Sheldon Hearn <sheldonh@FreeBSD.org>
Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: Re: cvs commit: src/sbin/newfs newfs.8
References: <200111271953.fARJrFc88452@freefall.freebsd.org>
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Sheldon Hearn wrote:
> 
> sheldonh    2001/11/27 11:53:15 PST
> 
>   Modified files:        (Branch: RELENG_4)
>     sbin/newfs           newfs.8
>   Log:
>   MFC: rev 1.44 - 1.46:
> 
>   Following on from 1.26.2.11, reintroduce the now corrected example
>   for using larger block/frag sizes and explain that 8:1 is the optimal
>   block/frag ratio.

This is very questionable topic, at least from the space efficience
POV. For example, I found that on my development system using 16:2
(5-CURRENT, /usr/ports + /usr/src) some 300MB are wasted in fragments
compared with the same partition formatted with 8:1. I would suggest
to extend this para explaining that 16:2 could result in a huge space
wastage when there are large number of small files on the fs (such as
/usr/ports or /usr/src) and 8:1 is better suited for such cases.


-Maxim

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