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Re: Git as a filesystem

From
Nicolas Pitre <nico@cam.org>
Date
Sep 21, 2007, 13:45 UTC
Message-ID
<alpine.LFD.0.9999.0709210943270.32185@xanadu.home>
In-Reply-To
<fbe8b1780709210635l5803456aof3757418dc9653e7@mail.gmail.com>
On Fri, 21 Sep 2007, Peter Stahlir wrote:
Show 19 quoted lines
> > > 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.
> 
> The 252GB stem from the fact that there are more than 10 architectures.
> I guess the /usr/share/doc of all architectures could be deltified (as could
> be all files that are architecture-independent)
> 
> Right?
Indeed.

But how much does this represents, once compressed, compared to the rest? I doubt it is significant enough for the trouble.

Nicolas
Previous: Peter StahlirNext: Christian von Kietzell
Message 13 of 19 in “Git as a filesystem”
  1. Peter StahlirSep 21, 2007
  2. Johannes SchindelinSep 21, 2007
  3. Peter StahlirSep 21, 2007
  4. Karl HasselströmSep 21, 2007
  5. Peter StahlirSep 21, 2007
  6. Michael PooleSep 21, 2007
  7. jlhSep 21, 2007
  8. Dmitry PotapovSep 21, 2007
  9. Martin LanghoffSep 21, 2007
  10. Sam VilainSep 22, 2007
  11. Nicolas PitreSep 21, 2007
  12. Peter StahlirSep 21, 2007
  13. Nicolas PitreSep 21, 2007
  14. Christian von KietzellSep 21, 2007
  15. Eric WongSep 21, 2007
  16. Johannes SchindelinSep 21, 2007
  17. Eric WongSep 22, 2007
  18. Johannes SchindelinSep 22, 2007
  19. Miklos VajnaSep 21, 2007

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