linux-kernel - Re: In response to kernel compression e-mail a few months ago.

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Message-ID: <Pine.LNX.4.64.0710161608200.10197@fbirervta.pbzchgretzou.qr>
Date:	Tue, 16 Oct 2007 16:22:27 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Denys Vlasenko <vda.linux@...glemail.com>
cc:	Justin Piszcz <jpiszcz@...idpixels.com>,
	Al Viro <viro@....linux.org.uk>, linux-kernel@...r.kernel.org,
	apiszcz@...arrain.com
Subject: Re: In response to kernel compression e-mail a few months ago.


On Oct 16 2007 14:19, Denys Vlasenko wrote:
>Sizes in Kb again:
>
>32392 linux-2.6.16.17.tar.7z
>33520 linux-2.6.16.17.tar.lzma
>
>P.S. sorting files by extension in tarball generally helps, but in case
>of Linux kernel, they are all C code anyway, so no measurable gain there.

Extension is not all so interesting because, as you point out,
most of it is C code, and .h files are mostly like .c in that they
have structs and function prototype keywords. But sorting by
name buys:

-rw-r--r--  1 jengelh users 45477128 Oct 12 18:47 linux-2.6.23.1.orig.tar.bz2
-rw-r--r--  1 jengelh users 45560647 Oct 16 16:18 linux-2.6.23.1.new.tar.bz2

(actually, `find "$@" -print0 | sort -z | tar -T- --null --no-r --owner=root
--group=root -cvjf "$output";` was used)
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