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Re: Decompression speed: zip vs lzo

From
Junio C Hamano <gitster@pobox.com>
Date
Jan 9, 2008, 23:49 UTC
Message-ID
<7vprwaeezp.fsf@gitster.siamese.dyndns.org>
In-Reply-To
<47855765.9090001@vilain.net>
Sam Vilain <sam@vilain.net> writes:
Show 8 quoted lines
> I think to go forward this would need a prototype and benchmark figures
> for things like "annotate" and "fsck --full" - but bear in mind it would
> be a long road to follow-up to completion, as repository compatibility
> would need to be a primary concern and this essentially would create a
> new pack type AND a new *object* type.  Not only that, but currently
> there is no header in the objects on disk which can be used to detect a
> gzip vs. an lzop stream.  Not really worth it IMHO - gzip is already
> fast enough on even the most modern processor these days.

For the compression type detection, I was hoping that we could do something like sha1_file.c::legacy_loose_object(), but I tend to agree it is not probably worth it.

Previous: Dana How
Message 39 of 39 in “Decompression speed: zip vs lzo”
  1. Marco CostalbaJan 9, 2008
  2. Junio C HamanoJan 9, 2008
  3. Sam VilainJan 9, 2008
  4. Johannes SchindelinJan 9, 2008
  5. Sam VilainJan 10, 2008
  6. Sam VilainJan 10, 2008
  7. Pierre HabouzitJan 10, 2008
  8. Nicolas PitreJan 10, 2008
  9. Linus TorvaldsJan 10, 2008
  10. Nicolas PitreJan 10, 2008
  11. Pierre HabouzitJan 11, 2008
  12. Sam VilainJan 10, 2008
  13. Linus TorvaldsJan 10, 2008
  14. Sam VilainJan 10, 2008
  15. Linus TorvaldsJan 10, 2008
  16. Sam VilainJan 11, 2008
  17. Linus TorvaldsJan 11, 2008
  18. Sam VilainJan 11, 2008
  19. Sam VilainJan 11, 2008
  20. Linus TorvaldsJan 11, 2008
  21. Sam VilainJan 12, 2008
  22. Nicolas PitreJan 12, 2008
  23. Sam VilainJan 12, 2008
  24. Nicolas PitreJan 12, 2008
  25. Johannes SchindelinJan 12, 2008
  26. Junio C HamanoJan 12, 2008
  27. Marco CostalbaJan 10, 2008
  28. Sam VilainJan 10, 2008
  29. Nicolas PitreJan 10, 2008
  30. Pierre HabouzitJan 11, 2008
  31. Nicolas PitreJan 11, 2008
  32. Morten WelinderJan 11, 2008
  33. Nicolas PitreJan 10, 2008
  34. Marco CostalbaJan 10, 2008
  35. Marco CostalbaJan 10, 2008
  36. Johannes SchindelinJan 10, 2008
  37. Marco CostalbaJan 10, 2008
  38. Dana HowJan 10, 2008
  39. Junio C HamanoJan 9, 2008

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