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Re: [PATCH] add the ability to create and retrieve delta objects

From
C. Scott Ananian <cscott@cscott.net>
Date
May 3, 2005, 15:57 UTC
Message-ID
<Pine.LNX.4.61.0505031153550.32767@cag.csail.mit.edu>
In-Reply-To
<200505030724.57827.mason@suse.com>
On Tue, 3 May 2005, Chris Mason wrote:
> your delta generator later this week.  Some quick and dirty space numbers to
> show why we need to pack the files together:

Are you accurately accounting for the cost of the extra hard/soft links your scheme requires? Ie the directories get larger, lookups take slightly longer, etc. Also access to a given file takes longer, and the deltas are referring to *other* packed files which *also* take longer to decompress and access...

How much better does delta-fication do, compared to just packing?
  --scott
NSA FJDEFLECT radar WASHTUB justice LCFLUTTER KUCLUB PBHISTORY Ft. Bragg 
ammunition immediate ESMERALDITE DC terrorist C4 SLBM affinity group
                          ( http://cscott.net/ )
Previous: Chris MasonNext: Chris Mason
Message 13 of 32 in “RFC: adding xdelta compression to git”
  1. Alon ZivMay 3, 2005
  2. Nicolas PitreMay 3, 2005
  3. Linus TorvaldsMay 3, 2005
  4. Davide LibenziMay 3, 2005
  5. C. Scott AnanianMay 3, 2005
  6. Linus TorvaldsMay 3, 2005
  7. Davide LibenziMay 3, 2005
  8. add the ability to create and retrieve delta objectsNicolas Pitre, May 3, 2005
  9. Chris MasonMay 3, 2005
  10. Nicolas PitreMay 3, 2005
  11. Linus TorvaldsMay 3, 2005
  12. Chris MasonMay 3, 2005
  13. C. Scott AnanianMay 3, 2005
  14. Chris MasonMay 3, 2005
  15. Chris MasonMay 3, 2005
  16. Nicolas PitreMay 3, 2005
  17. Chris MasonMay 3, 2005
  18. Nicolas PitreMay 3, 2005
  19. Chris MasonMay 3, 2005
  20. Linus TorvaldsMay 3, 2005
  21. add the ability to create and retrieve delta objectsNicolas Pitre, May 3, 2005
  22. Chris MasonMay 4, 2005
  23. C. Scott AnanianMay 4, 2005
  24. Chris MasonMay 4, 2005
  25. Linus TorvaldsMay 4, 2005
  26. Chris MasonMay 4, 2005
  27. Nicolas PitreMay 5, 2005
  28. Geert BoschMay 4, 2005
  29. Chris MasonMay 4, 2005
  30. Nicolas PitreMay 5, 2005
  31. Dan HolmsandMay 3, 2005
  32. C. Scott AnanianMay 3, 2005

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