From: Jeff King <peff@peff.net>
Date: Sun, 15 Apr 2012 02:15:50 GMT
Subject: Re: GSoC - Some questions on the idea of
Message-ID: <20120415021550.GA24102@sigill.intra.peff.net>
In-Reply-To: <4F8A2EBD.1070407@gmail.com>

On Sat, Apr 14, 2012 at 09:13:17PM -0500, Neal Kreitzinger wrote:

> Does a file's delta-compression efficiency in the pack-file directly
> correlate to its efficiency of transmission size/bandwidth in a
> git-fetch and git-push?  IOW, are big-files also a problem for
> git-fetch and git-push by taking too long in a remote transfer?

Yes. The on-the-wire format is a packfile. We create a new packfile on
the fly, so we may find new deltas (e.g., between objects that were
stored on disk in two different packs), but we will mostly be reusing
deltas from the existing packs.

So any time you improve the on-disk representation, you are also
improving the network bandwidth utilization.

-Peff