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Re: gc --aggressive

From
Junio C Hamano <gitster@pobox.com>
Date
Apr 17, 2012, 22:17 UTC
Message-ID
<7vr4vmm29z.fsf@alter.siamese.dyndns.org>
In-Reply-To
<20120417220838.GB10797@sigill.intra.peff.net>
Jeff King <peff@peff.net> writes:
Show 9 quoted lines
> ...
> I wonder where the memory is going. In theory, the memory consumption
> for packing comes from keeping all of the objects for a given window in
> memory (so we are looking for a delta for object X, and we have a window
> of Y[0]..Y[$window] objects that we will consider). And for a
> multi-threaded pack, that's per-thread.
>
> How many cores are there on this box? Have you tried setting
> pack.windowMemory to (12 / # of cores) or thereabouts?

Hrm, from the end-user's point of view, it appears that pack.windowMemory ought to mean the total without having to worry about the division of it across threads (which the implementation should be responsible for).

> ... But it seems lame that git _can't_
> do a full repack on such a beefy machine. You don't want to do it all
> the time, but you might want to do it at least once.
True.
Previous: Jeff KingNext: Jeff King
Message 22 of 26 in “gc --aggressive”
  1. Jay SoffianApr 17, 2012
  2. Jay SoffianApr 17, 2012
  3. Matthieu MoyApr 17, 2012
  4. Jeff KingApr 17, 2012
  5. Jeff KingApr 28, 2012
  6. Nicolas PitreApr 28, 2012
  7. Jeff KingApr 29, 2012
  8. Nicolas PitreApr 29, 2012
  9. Jeff KingMay 1, 2012
  10. Jeff KingMay 1, 2012
  11. Nicolas PitreMay 1, 2012
  12. Junio C HamanoMay 1, 2012
  13. Nicolas PitreMay 1, 2012
  14. Jeff KingMay 1, 2012
  15. Jeff KingMay 1, 2012
  16. Nicolas PitreMay 1, 2012
  17. Nicolas PitreMay 1, 2012
  18. Jeff KingMay 1, 2012
  19. Nicolas PitreMay 1, 2012
  20. Nicolas PitreApr 28, 2012
  21. Jeff KingApr 17, 2012
  22. Junio C HamanoApr 17, 2012
  23. Jeff KingApr 17, 2012
  24. Junio C HamanoApr 17, 2012
  25. Nicolas PitreApr 28, 2012
  26. Andreas EricssonApr 18, 2012

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