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Re: There should have be git gc --repack-arguments

From
Junio C Hamano <gitster@pobox.com>
Date
Apr 7, 2021, 22:13 UTC
Message-ID
<xmqqa6q9yc8c.fsf@gitster.g>
In-Reply-To
<YG4mImcQyTC1/S8X@coredump.intra.peff.net>
Jeff King <peff@peff.net> writes:
Show 17 quoted lines
> On Wed, Apr 07, 2021 at 01:40:16PM -0700, Junio C Hamano wrote:
>
>> Jeff King <peff@peff.net> writes:
>> 
>> >> ... git repack ...  --max-pack-size=<desired pack size> to create split and
>> >> smaller packs instead.
>> > ...
>> > You can also set pack.packSizeLimit for the latter, though I do not
>> > recommend it. It will not help with memory usage (neither while
>> > repacking nor for later commands).
>> 
>> In other words, passing --max-pack-size, whether it is done with a
>> new --repack-arguments option or it is done with the existing
>> pack.packSizeLimit configuration, would make things worse.
>
> Right. I wish we didn't have --max-pack-size at all. I do not think it
> is ever a good idea, and it complicates the packing code quite a bit.

I suspect that the original motivation was sneaker-netting on multiple floppy disks ;-)

Show 11 quoted lines
>>  - on a small box, it may make sense to avoid repacking everything
>>    into one in the first place, but we do not want the number of
>>    packs to grow unbounded.
>> 
>> Would the new geometric repack feature help here, especially for the
>> latter?
>
> Yes, I think it would. You'd perhaps want to generate a multi-pack-index
> file, too, to avoid having to look for objects in multiple packs
> sequentially (we have a "git repack --write-midx" option on the way, as
> well).
Thanks.
Previous: Jeff KingNext: Jeff King
Message 5 of 10 in “There should have be git gc --repack-arguments”
  1. Bagas SanjayaApr 7, 2021
  2. Jeff KingApr 7, 2021
  3. Junio C HamanoApr 7, 2021
  4. Jeff KingApr 7, 2021
  5. Junio C HamanoApr 7, 2021
  6. Jeff KingApr 7, 2021
  7. Bagas SanjayaApr 9, 2021
  8. Jeff KingApr 9, 2021
  9. Bryan TurnerApr 7, 2021
  10. Bagas SanjayaApr 8, 2021

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