From: Eric Wong <normalperson@yhbt.net>
To: Nicolas Pitre <nico@cam.org>
Cc: Peter Stahlir <peter.stahlir@googlemail.com>,
Johannes Schindelin <Johannes.Schindelin@gmx.de>,
git@vger.kernel.org
Subject: Re: Git as a filesystem
Date: Fri, 21 Sep 2007 16:33:43 -0700 [thread overview]
Message-ID: <20070921233343.GA8327@muzzle> (raw)
In-Reply-To: <alpine.LFD.0.9999.0709210912120.32185@xanadu.home>
Nicolas Pitre <nico@cam.org> wrote:
> On Fri, 21 Sep 2007, Peter Stahlir wrote:
>
> > This is was I was looking for. My motivation is whether it is possible
> > to run a system, for example Debian on a computer on top of gitfs,
> > and then have a huge mirror on it, for example a complete 252GB
> > Debian mirror as space efficient as possible.
> >
> > I wonder how big a deltified Debian mirror in one pack file would be. :)
>
> It would be just as big as the non gitified storage on disk.
>
> The space saving with git comes from efficient delta storage of
> _versioned_ files, i.e. multiple nearly identical versions of the same
> file where the stored delta is only the small difference between the
> first full version and subsequent versions. Unless you plan on storing
> many different Debian versions together, you won't benefit from any
> delta at all. And since Debian packages are already compressed, git
> won't be able to compress them further.
>
> So don't waste your time.
On a similar note, has anybody experimented with using git to
store maildirs or news spools? I'd imagine the quoted portions of
most message threads could be delta-compressed quite efficiently.
--
Eric Wong
next prev parent reply other threads:[~2007-09-21 23:33 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-21 10:51 Git as a filesystem Peter Stahlir
2007-09-21 11:11 ` Johannes Schindelin
2007-09-21 11:41 ` Peter Stahlir
2007-09-21 12:53 ` Karl Hasselström
2007-09-21 13:28 ` Peter Stahlir
2007-09-21 13:41 ` Michael Poole
2007-09-21 14:38 ` jlh
2007-09-21 17:29 ` Dmitry Potapov
2007-09-21 23:56 ` Martin Langhoff
2007-09-22 3:09 ` Sam Vilain
2007-09-21 13:22 ` Nicolas Pitre
2007-09-21 13:35 ` Peter Stahlir
2007-09-21 13:45 ` Nicolas Pitre
2007-09-21 15:46 ` Christian von Kietzell
2007-09-21 23:33 ` Eric Wong [this message]
2007-09-21 23:42 ` Johannes Schindelin
2007-09-22 2:06 ` Eric Wong
2007-09-22 12:06 ` Johannes Schindelin
2007-09-21 14:22 ` Miklos Vajna
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