From owner-freebsd-current@FreeBSD.ORG  Tue Dec  7 06:51:14 2010
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id B20EF106566B
	for <freebsd-current@freebsd.org>; Tue,  7 Dec 2010 06:51:14 +0000 (UTC)
	(envelope-from tim@kientzle.com)
Received: from mail-pw0-f54.google.com (mail-pw0-f54.google.com
	[209.85.160.54])
	by mx1.freebsd.org (Postfix) with ESMTP id 891958FC1A
	for <freebsd-current@freebsd.org>; Tue,  7 Dec 2010 06:51:14 +0000 (UTC)
Received: by pwi10 with SMTP id 10so2470024pwi.13
	for <multiple recipients>; Mon, 06 Dec 2010 22:51:14 -0800 (PST)
Received: by 10.142.161.16 with SMTP id j16mr332223wfe.281.1291704674052;
	Mon, 06 Dec 2010 22:51:14 -0800 (PST)
Received: from [10.123.2.178] (99-74-169-43.lightspeed.sntcca.sbcglobal.net
	[99.74.169.43])
	by mx.google.com with ESMTPS id b11sm8462429wff.21.2010.12.06.22.51.11
	(version=TLSv1/SSLv3 cipher=RC4-MD5);
	Mon, 06 Dec 2010 22:51:12 -0800 (PST)
Mime-Version: 1.0 (Apple Message framework v1082)
Content-Type: text/plain; charset=us-ascii
From: Tim Kientzle <tim@kientzle.com>
In-Reply-To: <9132C068-A9C7-41EE-AA98-714385441EE3@mac.com>
Date: Mon, 6 Dec 2010 22:50:44 -0800
Content-Transfer-Encoding: quoted-printable
Message-Id: <1639A255-7C84-4D81-A97E-AEB624E68A70@kientzle.com>
References: <20101206171358.GA17125@ravenloft.kiev.ua>
	<9132C068-A9C7-41EE-AA98-714385441EE3@mac.com>
To: Chuck Swiger <cswiger@mac.com>
X-Mailer: Apple Mail (2.1082)
Cc: freebsd-current@freebsd.org, Alex Kozlov <spam@rm-rf.kiev.ua>,
	Norikatsu Shigemura <nork@freebsd.org>
Subject: Re: trying to use xz on manuals.
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 07 Dec 2010 06:51:14 -0000


On Dec 6, 2010, at 11:17 AM, Chuck Swiger wrote:

> On Dec 6, 2010, at 9:13 AM, Alex Kozlov wrote:
>> On Tue, Dec 07, 2010 at 02:03:50AM +0900, Norikatsu Shigemura wrote:
>>> 	.xz smaller than .gz, but effective is about 96.2%:-(.
>>=20
>> Some time ago I do similar tests. Changing compression for base man's =
to bz2 or xz doesn't make much sense.
>=20
> Oh, agreed.  The issue with small files is that they will always take =
up at least one sector [*]; different compression routines don't gain =
any benefit if they don't change the number of sectors needed to store =
the file.
>=20
> More than half of the manpages end up as 1K .gz catman files as it is; =
~90% are 2K or smaller.

It might make sense if XZ decompression were significantly
faster than GZip decompression.  (Especially since man pages
are decompressed much more often than they are compressed.)

Tim