git/list[1] front-page[2] threads[3] people[4] search[5] about
 

Re: Why repository grows after "git gc"? / Purpose of *.keep files?

From
Shawn O. Pearce <spearce@spearce.org>
Date
May 13, 2008, 05:22 UTC
Message-ID
<20080513052232.GH29038@spearce.org>
In-Reply-To
<48292243.3050307@gnu.org>
Paolo Bonzini <bonzini@gnu.org> wrote:
Show 11 quoted lines
> Shawn O. Pearce wrote:
> >Junio C Hamano <gitster@pobox.com> wrote:
> >>Perhaps clone can decide to keep the .keep file depending on the size of
> >>the pack then?
> >
> >Yea, I think that's the better thing to do here.  I'm not sure where
> >the cut-off is, maybe its <512M delete the .keep once the refs are
> >inplace and the objects are ensured to be reachable.
> 
> I think separate cutoffs should be in place for file size and number of 
> objects.  Very tight packs probably require hours to repack as efficiently.

So long as you don't use `gc --aggressive` or `repack -f` the tightness of a pack doesn't matter; delta reuse means we copy the tight delta from the source pack to the new destination pack.

However, you are correct that the more objects in the source pack
the longer it will take to compute what is reachable, which does
extend the time needed for even a simple git-gc.
 
-- 
Shawn.
Previous: Paolo BonziniNext: Teemu Likonen
Message 32 of 35 in “Why repository grows after "git gc"? / Purpose of *.keep files?”
  1. Teemu LikonenMay 12, 2008
  2. Teemu LikonenMay 12, 2008
  3. Johannes SchindelinMay 12, 2008
  4. Teemu LikonenMay 12, 2008
  5. Nicolas PitreMay 12, 2008
  6. Teemu LikonenMay 12, 2008
  7. Nicolas PitreMay 12, 2008
  8. Govind SalinasMay 12, 2008
  9. Nicolas PitreMay 12, 2008
  10. Govind SalinasMay 12, 2008
  11. Teemu LikonenMay 12, 2008
  12. Mike HommeyMay 12, 2008
  13. Mike HommeyMay 12, 2008
  14. Shawn O. PearceMay 13, 2008
  15. Mike HommeyMay 13, 2008
  16. Nicolas PitreMay 14, 2008
  17. Junio C HamanoMay 14, 2008
  18. Juergen RuehleMay 14, 2008
  19. Nicolas PitreMay 14, 2008
  20. Junio C HamanoMay 14, 2008
  21. Linus TorvaldsMay 14, 2008
  22. Linus TorvaldsMay 14, 2008
  23. Nicolas PitreMay 14, 2008
  24. Linus TorvaldsMay 14, 2008
  25. A Large Angry SCMMay 14, 2008
  26. Nicolas PitreMay 12, 2008
  27. David TweedMay 12, 2008
  28. Shawn O. PearceMay 12, 2008
  29. Junio C HamanoMay 12, 2008
  30. Shawn O. PearceMay 13, 2008
  31. Paolo BonziniMay 13, 2008
  32. Shawn O. PearceMay 13, 2008
  33. Teemu LikonenMay 13, 2008
  34. Stephen R. van den BergMay 13, 2008
  35. Teemu LikonenMay 14, 2008

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.