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Re: Poor performance of git describe in big repos

From
Antoine Pelisse <apelisse@gmail.com>
Date
May 30, 2013, 19:01 UTC
Message-ID
<CALWbr2xd4k_P6KUQOcRJotWj3=DfJNnhL4rsGSw0yE+53gdyWw@mail.gmail.com>
In-Reply-To
<87bo7sbeoc.fsf@linux-k42r.v.cablecom.net>
> The culprit, according to some callgrind investigation, is
> lookup_commit_reference_gently() [for the unannotated case] or
> deref_tag() [annotated case] calling parse_object().

Using the scenario you described earlier, I think it ends-up spending most of its time in check_sha1_signature (both deref_tag and lookup_commit_reference_gently() go there) with 20% inflating, 80% in SHA1_Update(). Not much we can do about that, can we ?

Previous: Thomas RastNext: John Keeping
Message 11 of 33 in “Poor performance of git describe in big repos”
  1. Alex BennéeMay 30, 2013
  2. Ramkumar RamachandraMay 30, 2013
  3. Alex BennéeMay 30, 2013
  4. Ramkumar RamachandraMay 30, 2013
  5. Alex BennéeMay 30, 2013
  6. Ramkumar RamachandraMay 30, 2013
  7. Thomas RastMay 30, 2013
  8. Alex BennéeMay 30, 2013
  9. Thomas RastMay 30, 2013
  10. Thomas RastMay 30, 2013
  11. Antoine PelisseMay 30, 2013
  12. John KeepingMay 30, 2013
  13. Alex BennéeMay 31, 2013
  14. Thomas RastMay 31, 2013
  15. Alex BennéeMay 31, 2013
  16. Thomas RastMay 31, 2013
  17. Alex BennéeMay 31, 2013
  18. Alex BennéeJun 3, 2013
  19. Junio C HamanoJun 3, 2013
  20. Junio C HamanoJun 3, 2013
  21. Thomas RastMay 31, 2013
  22. Jeff KingMay 31, 2013
  23. Alex BennéeJun 3, 2013
  24. Jeff KingJun 3, 2013
  25. John KeepingMay 31, 2013
  26. Alex BennéeMay 31, 2013
  27. John KeepingMay 31, 2013
  28. John KeepingMay 30, 2013
  29. Alex BennéeMay 30, 2013
  30. Duy NguyenMay 30, 2013
  31. Alex BennéeMay 30, 2013
  32. Duy NguyenMay 30, 2013
  33. Alex BennéeMay 30, 2013

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