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Date:      Sat, 8 Dec 2001 10:48:00 +1030
From:      Greg Lehey <grog@FreeBSD.org>
To:        Maxim Sobolev <sobomax@FreeBSD.org>
Cc:        Sheldon Hearn <sheldonh@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sbin/newfs newfs.8
Message-ID:  <20011208104800.A1696@monorchid.lemis.com>
In-Reply-To: <3C10F171.FEE996EB@FreeBSD.org>
References:  <200111271953.fARJrFc88452@freefall.freebsd.org> <3C10F171.FEE996EB@FreeBSD.org>

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On Friday,  7 December 2001 at 18:42:25 +0200, Maxim Sobolev wrote:
> 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.

I think you're misunderstanding.  We're talking about a ratio here,
not a size.  16:2 is the same ratio as 8:1.

Greg
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