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Re: [PATCH 0/6] Speed up mirror-fetches with many refs

From
Junio C Hamano <gitster@pobox.com>
Date
Aug 21, 2021, 00:09 UTC
Message-ID
<xmqq1r6nu08l.fsf@gitster.g>
In-Reply-To
<cover.1629452412.git.ps@pks.im>
Patrick Steinhardt <ps@pks.im> writes:
> I've taken another look at fetches in the context of repos with a huge
> amount of refs. This time around, I've taken a look at mirror fetches:
> in our notorious repo with 2.3M refs, these mirror fetches can take up
> to several minutes of time even if there are no changes at all.

I notice that 4/6 (and no other patch) is not signed-off and wonder if there is a reason (e.g. you are not so comfortable with the idea behind the step or the implementation) or a simple oversight?

> Note that this series depends on ps/connectivity-optim and thus only
> applies on top of next.

It seems that the dependency of this series is not just 'master' plus 'ps/connectivity-optim' but some more stuff from 'next'. I expact that topics that have been cooking in 'next' during the previous cycle will graduate to 'master' early next week, so perhaps it is easier to handle this kind of "depends on some stuff in 'next'" topics after that happens.

Thanks.
Previous: Derrick StoleeNext: Patrick Steinhardt
Message 22 of 48 in “Speed up mirror-fetches with many refs”
  1. 0/6 Speed up mirror-fetches with many refsPatrick Steinhardt, Aug 20, 2021
  2. 1/6 fetch: speed up lookup of want refs via commit-graphPatrick Steinhardt, Aug 20, 2021
  3. Derrick StoleeAug 20, 2021
  4. Junio C HamanoAug 20, 2021
  5. Patrick SteinhardtAug 23, 2021
  6. Derrick StoleeAug 25, 2021
  7. 2/6 fetch: avoid unpacking headers in object existence checkPatrick Steinhardt, Aug 20, 2021
  8. Ævar Arnfjörð BjarmasonAug 25, 2021
  9. 3/6 connected: refactor iterator to return next object ID directlyPatrick Steinhardt, Aug 20, 2021
  10. Derrick StoleeAug 20, 2021
  11. Junio C HamanoAug 20, 2021
  12. René ScharfeAug 20, 2021
  13. Patrick SteinhardtAug 23, 2021
  14. 4/6 fetch-pack: optimize loading of refs via commit graphPatrick Steinhardt, Aug 20, 2021
  15. Derrick StoleeAug 20, 2021
  16. 5/6 fetch: refactor fetch refs to be more extendablePatrick Steinhardt, Aug 20, 2021
  17. Derrick StoleeAug 20, 2021
  18. 6/6 fetch: avoid second connectivity check if we already have all objectsPatrick Steinhardt, Aug 20, 2021
  19. Derrick StoleeAug 20, 2021
  20. Patrick SteinhardtAug 23, 2021
  21. Derrick StoleeAug 20, 2021
  22. Junio C HamanoAug 21, 2021
  23. 0/7 Speed up mirror-fetches with many refsPatrick Steinhardt, Aug 24, 2021
  24. 1/7 fetch: speed up lookup of want refs via commit-graphPatrick Steinhardt, Aug 24, 2021
  25. Derrick StoleeAug 25, 2021
  26. 2/7 fetch: avoid unpacking headers in object existence checkPatrick Steinhardt, Aug 24, 2021
  27. 3/7 connected: refactor iterator to return next object ID directlyPatrick Steinhardt, Aug 24, 2021
  28. 4/7 fetch-pack: optimize loading of refs via commit graphPatrick Steinhardt, Aug 24, 2021
  29. 5/7 fetch: refactor fetch refs to be more extendablePatrick Steinhardt, Aug 24, 2021
  30. Derrick StoleeAug 25, 2021
  31. Patrick SteinhardtSep 1, 2021
  32. 7/7 fetch: avoid second connectivity check if we already have all objectsPatrick Steinhardt, Aug 24, 2021
  33. 6/7 fetch: merge fetching and consuming refsPatrick Steinhardt, Aug 24, 2021
  34. Derrick StoleeAug 25, 2021
  35. Patrick SteinhardtSep 1, 2021
  36. Junio C HamanoAug 24, 2021
  37. Patrick SteinhardtAug 25, 2021
  38. Derrick StoleeAug 25, 2021
  39. 0/7 Speed up mirror-fetches with many refsPatrick Steinhardt, Sep 1, 2021
  40. 1/7 fetch: speed up lookup of want refs via commit-graphPatrick Steinhardt, Sep 1, 2021
  41. 2/7 fetch: avoid unpacking headers in object existence checkPatrick Steinhardt, Sep 1, 2021
  42. 3/7 connected: refactor iterator to return next object ID directlyPatrick Steinhardt, Sep 1, 2021
  43. 4/7 fetch-pack: optimize loading of refs via commit graphPatrick Steinhardt, Sep 1, 2021
  44. 5/7 fetch: refactor fetch refs to be more extendablePatrick Steinhardt, Sep 1, 2021
  45. 6/7 fetch: merge fetching and consuming refsPatrick Steinhardt, Sep 1, 2021
  46. 7/7 fetch: avoid second connectivity check if we already have all objectsPatrick Steinhardt, Sep 1, 2021
  47. Junio C HamanoSep 1, 2021
  48. Junio C HamanoSep 8, 2021

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