From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 11 Mar 2011 03:09:31 GMT
Subject: Re: [PATCH] find_unique_abbrev(): honor caller-supplied "len" better
Message-ID: <7vei6e1hg4.fsf@alter.siamese.dyndns.org>
In-Reply-To: <AANLkTinHCsyN4TLBAxzxOn_QAK67VkT1pLgcu7XB0JCD@mail.gmail.com>

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.