Re: git repack command on larger pack file

From: Junio C Hamano <gitster@pobox.com>
Date: Oct 28, 2015, 06:47 UTC
Message-ID: <xmqqh9lbmqve.fsf@gitster.mtv.corp.google.com>
In-Reply-To: <xmqqlhanmrz7.fsf@gitster.mtv.corp.google.com>

Junio C Hamano <gitster@pobox.com> writes:

Show 9 quoted lines

>> [1] This is all theory, and I don't know how well git actually finds
>>     such deltas, but it is probably better to have a dense tree of
>>     deltas rather than long chains.  If you have a chain of N objects
>>     and would to add object N+1 to it, you are probably not much worse
>>     off to base it on object N-1, creating a "fork" at N.
>
> Yes, your guess is perfectly correct here, and indeed we did an
> extensive work along that line in 2006/2007.  For an example, see
> http://thread.gmane.org/gmane.comp.version-control.git/51949/focus=52003

And here is another, which is probably one of the most important thread on pack-objects, before the bitmap was introduced:

http://thread.gmane.org/gmane.comp.version-control.git/20056/focus=20134