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Date:      Tue, 11 Sep 2012 15:48:55 -0700
From:      Arthur Mesh <arthurmesh@gmail.com>
To:        d@delphij.net
Cc:        Arthur Mesh <arthurmesh@gmail.com>, Doug Barton <dougb@FreeBSD.org>, freebsd-rc@freebsd.org, obrien@freebsd.org, freebsd-security@freebsd.org, RW <rwmaillists@googlemail.com>, Dag-Erling ??? <des@des.no>
Subject:   Re: svn commit: r239569 - head/etc/rc.d
Message-ID:  <20120911224855.GE14077@x96.org>
In-Reply-To: <504FBD15.8040907@delphij.net>
References:  <20120911061530.GA77399@dragon.NUXI.org> <504EDC67.9070700@FreeBSD.org> <86sjao7q8c.fsf@ds4.des.no> <20120911205302.27484fd6@gumby.homeunix.com> <20120911200925.GA88456@dragon.NUXI.org> <504FA76A.5000209@delphij.net> <20120911211730.GB89188@dragon.NUXI.org> <504FAB87.3020701@delphij.net> <20120911215212.GA89515@dragon.NUXI.org> <504FBD15.8040907@delphij.net>

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On Tue, Sep 11, 2012 at 03:37:09PM -0700, Xin Li wrote:
> Using gzip is better than not using it though, since 4k worth of
> compressed data is better than 4k worth of plain text because of
> higher entropy destiny (note that the FreeBSD gzip uses 64K of
> input/output buffer for compression by the way so maybe only the first
> 64K is meaningful if we take only 4k of output).

Since there is 1:1 correspondence between compressed and uncompressed
data, entropy should be the same in both. I am not sure it's better to
use compression than not -- you do end up seeding fewer bytes to yarrow,
but you spend more CPU cycles compressing it...



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