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Re: git status: small difference between stating whole repository and small subdirectory

From
Jeff King <peff@peff.net>
Date
Feb 17, 2012, 22:29 UTC
Message-ID
<20120217222912.GC31830@sigill.intra.peff.net>
In-Reply-To
<7vaa4hrtbe.fsf@alter.siamese.dyndns.org>
On Fri, Feb 17, 2012 at 02:25:25PM -0800, Junio C Hamano wrote:
Show 13 quoted lines
> Jeff King <peff@peff.net> writes:
> 
> > That being said, we do have an index extension to store the tree sha1 of
> > whole directories (i.e., we populate it when we write a whole tree or
> > subtree into the index from the object db, and it becomes invalidated
> > when a file becomes modified). This optimization is used by things like
> > "git commit" to avoid having to recreate the same sub-trees over and
> > over when creating tree objects from the index. But we could also use it
> > here to avoid having to even read the sub-tree objects from the object
> > db.
> 
> Like b65982b (Optimize "diff-index --cached" using cache-tree, 2009-05-20)
> perhaps?
That's what I get for speaking before running "git log".

So yeah, we may be about as reasonably fast as we can go. Or maybe that optimization isn't kicking in for some reason. I think going further would require Piotr to do more profiling.

-Peff
Previous: Junio C HamanoNext: Piotr Krukowiecki
Message 21 of 52 in “git status: small difference between stating whole repository and small subdirectory”
  1. Piotr KrukowieckiFeb 10, 2012
  2. Nguyen Thai Ngoc DuyFeb 10, 2012
  3. Piotr KrukowieckiFeb 10, 2012
  4. Nguyen Thai Ngoc DuyFeb 10, 2012
  5. Piotr KrukowieckiFeb 13, 2012
  6. Piotr KrukowieckiFeb 10, 2012
  7. Thomas RastFeb 14, 2012
  8. Piotr KrukowieckiFeb 15, 2012
  9. Nguyen Thai Ngoc DuyFeb 15, 2012
  10. Piotr KrukowieckiFeb 15, 2012
  11. Piotr KrukowieckiFeb 16, 2012
  12. Jeff KingFeb 15, 2012
  13. Piotr KrukowieckiFeb 16, 2012
  14. Thomas RastFeb 16, 2012
  15. Junio C HamanoFeb 16, 2012
  16. Piotr KrukowieckiFeb 17, 2012
  17. Jeff KingFeb 16, 2012
  18. Piotr KrukowieckiFeb 17, 2012
  19. Jeff KingFeb 17, 2012
  20. Junio C HamanoFeb 17, 2012
  21. Jeff KingFeb 17, 2012
  22. Piotr KrukowieckiFeb 20, 2012
  23. Jeff KingFeb 20, 2012
  24. Thomas RastFeb 20, 2012
  25. Nguyen Thai Ngoc DuyFeb 20, 2012
  26. Jeff KingFeb 20, 2012
  27. Jeff KingFeb 20, 2012
  28. Thomas RastFeb 20, 2012
  29. Jeff KingFeb 20, 2012
  30. Junio C HamanoFeb 20, 2012
  31. Jeff KingFeb 20, 2012
  32. Junio C HamanoFeb 20, 2012
  33. Piotr KrukowieckiFeb 21, 2012
  34. Junio C HamanoFeb 20, 2012
  35. Jeff KingFeb 20, 2012
  36. Nguyen Thai Ngoc DuyFeb 21, 2012
  37. Junio C HamanoFeb 21, 2012
  38. Nguyen Thai Ngoc DuyFeb 22, 2012
  39. Junio C HamanoFeb 22, 2012
  40. Nguyen Thai Ngoc DuyFeb 22, 2012
  41. Thomas RastFeb 22, 2012
  42. Nguyen Thai Ngoc DuyFeb 22, 2012
  43. Junio C HamanoFeb 22, 2012
  44. Piotr KrukowieckiApr 10, 2012
  45. Junio C HamanoApr 10, 2012
  46. Jeff KingApr 10, 2012
  47. Junio C HamanoFeb 20, 2012
  48. Thomas RastFeb 20, 2012
  49. Nguyen Thai Ngoc DuyFeb 20, 2012
  50. Jeff KingFeb 20, 2012
  51. Junio C HamanoFeb 20, 2012
  52. Jeff KingFeb 20, 2012

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