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From: Junio C Hamano <gitster@pobox.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Junio C Hamano <gitster@pobox.com>,
	git@vger.kernel.org, Namhyung Kim <namhyung@gmail.com>
Subject: Re: [PATCH] find_unique_abbrev(): honor caller-supplied "len" better
Date: Thu, 10 Mar 2011 19:09:31 -0800	[thread overview]
Message-ID: <7vei6e1hg4.fsf@alter.siamese.dyndns.org> (raw)
In-Reply-To: <AANLkTinHCsyN4TLBAxzxOn_QAK67VkT1pLgcu7XB0JCD@mail.gmail.com> (Linus Torvalds's message of "Thu, 10 Mar 2011 18:21:36 -0800")

Linus Torvalds <torvalds@linux-foundation.org> writes:

> But it is somewhat expensive to calculate "max current uniqueness", so
> I would suggest ditching the whole notion of "how many extra numbers
> do I need for futureproofing", and go for just setting the absolute
> value of DEFAULT_ABBREV.

Thanks; apparently our mails crossed...

I suspect that in a sane repository with set of reasonably packed objects,
we can cheaply get a rough estimate of the number of objects to about an
order of magnitude (e.g. "likely to have 10k to 100k objects"), and we
might able to come up with a way to automatically raise the default
length.

  reply	other threads:[~2011-03-11  3:09 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <E1PBKT9-0004Uk-Sm@tytso-glaptop>
     [not found] ` <20101028075631.GA7690@elte.hu>
     [not found]   ` <AANLkTi=8SbOZizWpxLg=Bgp7atdgr8MsR6tnRDYr1+eW@mail.gmail.com>
     [not found]     ` <20101028163854.GA15450@elte.hu>
     [not found]       ` <AANLkTin62vAwJxcsrFk6Yn7Q6tzr-D=EmKKwPazuAJ11@mail.gmail.com>
     [not found]         ` <20101028171701.GA18368@elte.hu>
2010-10-28 17:27           ` Minimum git commit abbrev length (Was Re: -tip: origin tree build failure (was: [GIT PULL] ext4 update) for 2.6.37) Ted Ts'o
2010-10-28 18:28             ` Linus Torvalds
2010-10-28 18:54               ` Linus Torvalds
2010-10-29  0:14                 ` Minimum git commit abbrev length (Was Re: -tip: origin tree build failure Brandon Casey
     [not found]         ` <7veiba9ev2.fsf@alter.siamese.dyndns.org>
2011-03-10 22:37           ` [PATCH] find_unique_abbrev(): honor caller-supplied "len" better Junio C Hamano
2011-03-10 23:07             ` Linus Torvalds
2011-03-11  0:40               ` Junio C Hamano
2011-03-11  1:16                 ` Linus Torvalds
2011-03-11  1:33                   ` Junio C Hamano
2011-03-11  2:21                     ` Linus Torvalds
2011-03-11  3:09                       ` Junio C Hamano [this message]
2011-03-11  3:03                     ` Junio C Hamano
2011-03-11  5:22                       ` Jeff King
2011-03-11  5:33                         ` Jeff King
2011-03-11 22:45                       ` Junio C Hamano
2011-03-13 13:30                         ` Namhyung Kim
2011-03-19  1:22                         ` Jay Soffian
2011-03-19 16:24                           ` Namhyung Kim

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