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List:       gentoo-dev
Subject:    Re: [gentoo-dev] Having fun with compression
From:       Patrick Lauer <patrick () gentoo ! org>
Date:       2006-04-30 19:03:26
Message-ID: 1146423806.15273.2.camel () localhost
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On Sun, 2006-04-30 at 10:30 -0700, Robin H. Johnson wrote:
> On Sun, Apr 30, 2006 at 06:30:23PM +0200, Patrick Lauer wrote:
> > We have ~15k .tar.gz in distfiles. ~6500 .tar.bz2, ~2000 others.
> > A short run over 477 distfiles spanning 833M gave me 586M of .tar.bz2 -
> > roughly 30% more efficient!
> > A comparison run with 7zip gave me 590M files, so bzip2 seems to be
> > quite good.
> Try rzip, esp. on the larger files, and see a serious improvement, with
> the cost of one major penalty [*].
> 
> * rzip cannot handle streams, it seeks across the file multiple times
>   for what it does.
> 
642M on my data set - not bad, but bzip2 seems to be better on the files
I have tested.

Patrick
-- 
Stand still, and let the rest of the universe move

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