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Date: Thu, 21 Sep 2006 16:42:50 -0400
To: Dax Kelson <dax@gurulabs.com>
Cc: Linux kernel <linux-kernel@vger.kernel.org>,
       Linus Torvalds <torvalds@osdl.org>
Subject: Re: Smaller compressed kernel source tarballs?
Message-ID: <20060921204250.GN13641@csclub.uwaterloo.ca>
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From: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
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On Thu, Sep 21, 2006 at 02:32:57PM -0600, Dax Kelson wrote:
> Today as I was watching the linux-2.6.18.tar.bz2 slowly download I
> thought it would be nice if it could be made smaller.
> 
> The 7zip program/algorithm is free software (LGPL) and can be obtained
> from http://www.7-zip.org/ and it is distributed with several
> distributions (it is in Fedora Core 6 extras for example).
> 
> Here are the numbers:
> 
> ls -al
> -rw-r--r--  1 root root 240138240 Sep 21 13:55 linux-2.6.18.tar
> -rw-r--r--  1 root root  34180796 Sep 21 13:42 linux-2.6.18.tar.7z
> -rw-r--r--  1 root root  41863580 Sep 21 13:45 linux-2.6.18.tar.bz2
> -rw-r--r--  1 root root  52467357 Sep 21 13:13 linux-2.6.18.tar.gz
> 
> ls -alh
> -rw-r--r--  1 root root 230M Sep 21 13:55 linux-2.6.18.tar
> -rw-r--r--  1 root root  33M Sep 21 13:42 linux-2.6.18.tar.7z
> -rw-r--r--  1 root root  40M Sep 21 13:45 linux-2.6.18.tar.bz2
> -rw-r--r--  1 root root  51M Sep 21 13:13 linux-2.6.18.tar.gz
> 
> Smaller the better, especially with the international audience.

But after you download it once, you can just get the diff next time.
How is the decompression time on 7zip versus bzip2 and gzip?

--
Len Sorensen
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