Re: [PATCH] git-bundle: Make thin packs

From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mar 8, 2007, 00:34 UTC
Message-ID: <Pine.LNX.4.64.0703071632140.5963@woody.linux-foundation.org>
In-Reply-To: <Pine.LNX.4.63.0703080121210.22628@wbgn013.biozentrum.uni-wuerzburg.de>

On Thu, 8 Mar 2007, Johannes Schindelin wrote:

Show 9 quoted lines

>
> 	> Since a bundle doesn't make any sense *anyway* unless you have 
> 	> the prerequisites at the other end, I think you might as well do 
> 	> thin packs. That will cut down on the bundle size a *lot* for 
> 	> the common cases.
> 
> 	Well, I disagree on the blanket "*anyway*". Shallow fetches are no 
> 	longer possible from these bundles (at least after this commit 
> 	_and_ ":/git-bundle: avoid packing" which I just sent out).

Does anybody actually use shallow clones in real life?

When I did the numbers a long time ago, the shallow clone didn't actually help much, because it meant that there were no deltas. Which meant that you got 1% of the history for 60% of the price of all history, and the shallow thing didn't really seem to make much sense.

I guess that for something with a really long history, you'd get 0.001% of the history for 10% of the price, and maybe it makes sense then.

		Linus