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Re: [PATCH 3/3] revision: insert unsorted, then sort in prepare_revision_walk()

From
MFMartin Fick <mfick@codeaurora.org>
Date
Apr 3, 2012, 05:55 UTC
Message-ID
<53707c0a-3782-47a4-8a35-da7136ff4822@email.android.com>
In-Reply-To
<CACsJy8DGaFg=oEwLWWo33cJa=SDuuZshW4=cZpifCWLp5gGcTA@mail.gmail.com>
Nguyen Thai Ngoc Duy <pclouds@gmail.com> wrote:
Show 16 quoted lines
>> we could even store the data in a separate file to
>> retain indexv2 compatibility).
>>
>> So it's sort-of a cache, in that it's redundant with the actual data.
>> But staleness and writing issues are a lot simpler, since it only
>gets
>> updated when we index the pack (and the pack index in general is a
>> similar concept; we are "caching" the location of the object in the
>> packfile, rather than doing a linear search to look it up each time).
>
>I think I have something like that, (generate a machine-friendly
>commit cache per pack, staying in $GIT_DIR/objects/pack/ too). It's
>separate cache staying in $GIT_DIR/objects/pack, just like pack-.idx
>files. It does improve rev-list time, but I'd rather wait for packv4,
>or at least be sure that packv4 will not come anytime soon, before
>pushing the cache route.
I would love to try those patches out if you have them?
-Martin
Employee of Qualcomm Innovation Center,Inc. which is a member of Code Aurora Forum
Previous: Nguyen Thai Ngoc DuyNext: Nguyễn Thái Ngọc Duy
Message 25 of 37 in “Git push performance problems with ~100K refs”
  1. Martin FickMar 30, 2012
  2. Junio C HamanoMar 30, 2012
  3. Martin FickMar 30, 2012
  4. Jeff KingMar 30, 2012
  5. Jeff KingMar 30, 2012
  6. Martin FickMar 30, 2012
  7. 1/3 add mergesort() for linked listsRené Scharfe, Mar 31, 2012
  8. Junio C HamanoApr 5, 2012
  9. René ScharfeApr 8, 2012
  10. Junio C HamanoApr 9, 2012
  11. Stephen BoydApr 11, 2012
  12. Junio C HamanoApr 11, 2012
  13. 2/3 commit: use mergesort() in commit_list_sort_by_date()René Scharfe, Mar 31, 2012
  14. 3/3 revision: insert unsorted, then sort in prepare_revision_walk()René Scharfe, Mar 31, 2012
  15. Martin FickMar 31, 2012
  16. Junio C HamanoMar 31, 2012
  17. Martin FickApr 2, 2012
  18. Shawn PearceApr 2, 2012
  19. Martin FickApr 2, 2012
  20. Shawn PearceApr 2, 2012
  21. Jeff KingApr 2, 2012
  22. Jeff KingApr 2, 2012
  23. Martin FickApr 2, 2012
  24. Nguyen Thai Ngoc DuyApr 3, 2012
  25. Martin FickApr 3, 2012
  26. 0/3 Commit cacheNguyễn Thái Ngọc Duy, Apr 3, 2012
  27. 1/3 parse_commit_buffer: rename a confusing variable nameNguyễn Thái Ngọc Duy, Apr 3, 2012
  28. 2/3 Add commit cache to help speed up commit traversalNguyễn Thái Ngọc Duy, Apr 3, 2012
  29. 3/3 Add parse_commit_for_rev() to take advantage of sha1-cacheNguyễn Thái Ngọc Duy, Apr 3, 2012
  30. Nguyen Thai Ngoc DuyApr 5, 2012
  31. Shawn PearceApr 6, 2012
  32. Nguyen Thai Ngoc DuyApr 7, 2012
  33. Nguyen Thai Ngoc DuyApr 3, 2012
  34. Jeff KingApr 2, 2012
  35. René ScharfeApr 2, 2012
  36. Jeff KingApr 3, 2012
  37. Jeff KingApr 3, 2012

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