linux-kernel - Re: the " 'official' point of view" expressed by kernelnewbies.org regarding reiser4 inclusion

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Message-ID: <20060726172029.GS32243@opteron.random>
Date:	Wed, 26 Jul 2006 19:20:29 +0200
From:	andrea@...share.com
To:	"J. Bruce Fields" <bfields@...ldses.org>
Cc:	Adrian Bunk <bunk@...sta.de>, Hans Reiser <reiser@...esys.com>,
	Nikita Danilov <nikita@...sterfs.com>,
	Rene Rebe <rene@...ctcode.de>,
	Linux Kernel Mailing List <Linux-Kernel@...r.Kernel.ORG>
Subject: Re: the " 'official' point of view" expressed by kernelnewbies.org regarding reiser4 inclusion

On Wed, Jul 26, 2006 at 01:02:36PM -0400, J. Bruce Fields wrote:
> On Wed, Jul 26, 2006 at 06:06:04PM +0200, andrea@...share.com wrote:
> > JFYI: all statistics only take a sample of the larger space, the whole
> > point of having a statistic is because you can't measure the total.
> > The smaller the sample compared to the total, the less the stats are
> > accurate
> 
> Definitely not true in general.  If I wanted to know the gender ratio at
> the latest OLS I'd take the results from a sample of a dozen chosen
> randomly over the results from a sample of hundreds all taken from the
> men's room.

Well, your example is perhaps the worst one since you wouldn't be
decreasing the quality of your stats very much by only doing the
sample in the men's room ;). I guess you meant the woman's room.

> For exactly the same quality of sampling, yes, the larger the better,
> but the point of diminishing returns comes pretty quickly.  So given
> limited resources it's probably more important to work on the quality of
> the sample rather than on its size....

No matter how you see it, the larger the better (in the worst case it
won't make a difference). Certainly if I could work on the quality,
that would be more important than adding 1 more user. But I can't work
on the quality.
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