Re: [PATCH] add the ability to create and retrieve delta objects

From: Chris Mason <mason@suse.com>
Date: May 4, 2005, 22:34 UTC
Message-ID: <200505041834.19053.mason@suse.com>
In-Reply-To: <DE5D04E8-B182-45B1-AB9A-6AA178005FFD@adacore.com>

On Wednesday 04 May 2005 17:47, Geert Bosch wrote:

>  From your tests it would seem that the zdelta version is the only one
> to provide a uniform improvement over plain git. As it also seems the
> simplest approach, I wonder why the consensus is that using xdiff
> would be better?

zdelta seems to be a research project. It does compress better than the xdiff lib, but the speed improvements against xdiff(1) are probably because the resulting tree is smaller. I favor the xdiff code because it's so much smaller, and seems easier for us to maintain.

For performance, there's still quite a bit of tuning that can be done in terms of when and how we delta.

-chris