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

From
Nguyen Thai Ngoc Duy <pclouds@gmail.com>
Date
Feb 10, 2012, 12:33 UTC
Message-ID
<CACsJy8DnqYZ5CdZqbebWS4NS85mfwumyao0abeqDxMXrHhDELA@mail.gmail.com>
In-Reply-To
<CAA01Csr8FbvQ8uFvxX8_6i-hysin6JuaifVVC-yoLyoT0N5F4Q@mail.gmail.com>

On Fri, Feb 10, 2012 at 4:42 PM, Piotr Krukowiecki <piotr.krukowiecki@gmail.com> wrote:

Show 5 quoted lines
> Hi,
>
> I compared stating whole tree vs one small subdirectory, and I
> expected that for the subdirectory status will be very very fast.
> After all, it has only few files to stat. But it's not fast. Why?

Because stat'ing is not the only thing git-status does? In order to find out staged changes, unstaged changes and untracked files, it has to do the equivalence of "git diff --cached", "git diff" and "git ls-files -o". I think copy detection is also enabled, which uses more cycles.

Profiling it should give you a good idea what parts cost most.
-- 
Duy
Previous: Piotr KrukowieckiNext: Piotr Krukowiecki
Message 2 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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