Re: [PATCH] RFC: git lazy clone proof-of-concept

From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Feb 14, 2008, 21:04 UTC
Message-ID: <alpine.LSU.1.00.0802142054080.30505@racer.site>
In-Reply-To: <m3y79nb8xk.fsf@localhost.localdomain>

Hi,

On Thu, 14 Feb 2008, Jakub Narebski wrote:

> Do you perchance know why OOo needs so large pack?

No.

> Perhaps you could try running contrib/stats/packinfo.pl on this pack to 
> examine it to get to know what takes most space.

$ ~/git/contrib/stats/packinfo.pl < \ objects/pack/pack-e4dc6da0a10888ec4345490575efc587b7523b45.pack 2>&1 | \ tee packinfo.txt Illegal division by zero at /home/imaging/git/contrib/stats/packinfo.pl line 141, <STDIN> line 6330855.

> What is the size of checkout, by the way?

I work on a bare repository, but:

$ git archive origin/master | wc -c 2010060800

Or more precisely:

$ echo $(($(git ls-tree -l -r origin/master | sed -n 's/^[^ ]* [^ ]* [^ ]* *$[0-9]*$.*$/\1/p' | tr '\012' +)0)) 1947839459

So yes, we still have the crown of the _whole_ repository being _smaller_ than a single checkout.

Yeah!

> Hmmm... I wonder if packv4 would help...

I could imagine that it does, what with it being so much better with strings. But it would come at a price of performance, I guess, as the string table should be well over 64k.

Ciao, Dscho