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Re: [PATCH 0/5] Suggested for PU: revision caching system to significantly speed up packing/walking

From
Shawn O. Pearce <spearce@spearce.org>
Date
Aug 6, 2009, 20:32 UTC
Message-ID
<20090806203223.GK1033@spearce.org>
In-Reply-To
<c77435a80908061330h2461012at8b877970cab4906b@mail.gmail.com>
Nick Edelen <sirnot@gmail.com> wrote:
Show 8 quoted lines
> Hrmm, I just realized that it dosn't actually cache paths/names...
> This obviously has no bearing on its use in packing, but I should
> either add that in or restrict usage in non-packing-related walks.
> Weird how things like that escape you.
> 
> I think I may go ahead and add support for this tomorrow.  It should
> have no effect on performance and very little impact on cache slice
> size.

You may not need the path name, but instead the hash value that pack-objects computes from the path name. All that matters is the hash, so pack-objects can schedule the objects into the right buckets when its doing delta computation for objects which are not yet delta compressed, or whose delta cannot be suitably reused.

-- 
Shawn.
Previous: Nick EdelenNext: A Large Angry SCM
Message 8 of 34 in “Suggested for PU: revision caching system to significantly speed up packing/walking”
  1. 0/5 Suggested for PU: revision caching system to significantly speed up packing/walkingNick Edelen, Aug 6, 2009
  2. Johannes SchindelinAug 6, 2009
  3. Michael J GruberAug 6, 2009
  4. Nick EdelenAug 6, 2009
  5. Johannes SchindelinAug 6, 2009
  6. Nick EdelenAug 6, 2009
  7. Nick EdelenAug 6, 2009
  8. Shawn O. PearceAug 6, 2009
  9. A Large Angry SCMAug 6, 2009
  10. Shawn O. PearceAug 6, 2009
  11. A Large Angry SCMAug 6, 2009
  12. Nick EdelenAug 7, 2009
  13. Johannes SchindelinAug 7, 2009
  14. Nicolas PitreAug 7, 2009
  15. Sam VilainAug 7, 2009
  16. Nicolas PitreAug 7, 2009
  17. Johannes SchindelinAug 7, 2009
  18. Nicolas PitreAug 7, 2009
  19. Johannes SchindelinAug 8, 2009
  20. Junio C HamanoAug 8, 2009
  21. Sam VilainAug 8, 2009
  22. Nicolas PitreAug 9, 2009
  23. Nick EdelenAug 9, 2009
  24. Johannes SchindelinAug 7, 2009
  25. Nicolas PitreAug 7, 2009
  26. Nick EdelenAug 7, 2009
  27. Junio C HamanoAug 7, 2009
  28. Nick EdelenAug 7, 2009
  29. Junio C HamanoAug 8, 2009
  30. Nick EdelenAug 8, 2009
  31. Jeff KingAug 8, 2009
  32. Nick EdelenAug 8, 2009
  33. Jeff KingAug 8, 2009
  34. Junio C HamanoAug 8, 2009

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