From owner-svn-src-head@FreeBSD.ORG  Mon May 13 00:17:34 2013
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Date: Mon, 13 May 2013 00:17:34 +0000
From: Alexey Dokuchaev <danfe@FreeBSD.org>
To: Dmitry Morozovsky <marck@rinet.ru>
Subject: Re: svn commit: r250565 - head/etc
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On Mon, May 13, 2013 at 01:14:35AM +0400, Dmitry Morozovsky wrote:
> method	realtm	arsize
> ====================
> gzip	45s	183M
> bzip2	5m32s	115M
> xz	11m43s	112M
> 
> I would tend to use xz for distributives (including freebsd-updates or
> portsnap), where compression process is quite rare, but download size is
> significant -- but not for logs, backups, or other similar once-packed
> data...

+1.  xz is not part of all our releases, yet people still might be running
6.x for example, and they certainly won't be happy to keep two versions of
their newsyslog.conf (otherwise identical) -- just another reason why this
change is moot at least.

Otherwise I totally agree with Dmitry that xz is not for frequent
compressions of small files when it clearly loses to bzip2.

./danfe