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From: Jeff King <peff@peff.net>
To: Neal Kreitzinger <nkreitzinger@gmail.com>
Cc: Sergio Callegari <sergio.callegari@gmail.com>,
	Bo Chen <chen@chenirvine.org>,
	git@vger.kernel.org
Subject: Re: GSoC - Some questions on the idea of
Date: Sat, 14 Apr 2012 22:15:50 -0400	[thread overview]
Message-ID: <20120415021550.GA24102@sigill.intra.peff.net> (raw)
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

  parent reply	other threads:[~2012-04-15  2:16 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-28  4:38 GSoC - Some questions on the idea of "Better big-file support" Bo Chen
2012-03-28  6:19 ` Nguyen Thai Ngoc Duy
2012-03-28 11:33   ` GSoC - Some questions on the idea of Sergio
2012-03-30 19:44     ` Bo Chen
2012-03-30 19:51     ` Bo Chen
2012-03-30 20:34       ` Jeff King
2012-03-30 23:08         ` Bo Chen
2012-03-31 11:02           ` Sergio Callegari
2012-03-31 16:18             ` Neal Kreitzinger
2012-04-02 21:07               ` Jeff King
2012-04-03  9:58                 ` Sergio Callegari
2012-04-11  1:24                 ` Neal Kreitzinger
2012-04-11  6:04                   ` Jonathan Nieder
2012-04-11 16:29                     ` Neal Kreitzinger
2012-04-11 22:09                       ` Jeff King
2012-04-11 16:35                     ` Neal Kreitzinger
2012-04-11 16:44                     ` Neal Kreitzinger
2012-04-11 17:20                       ` Jonathan Nieder
2012-04-11 18:51                         ` Junio C Hamano
2012-04-11 19:03                           ` Jonathan Nieder
2012-04-11 18:23                     ` Neal Kreitzinger
2012-04-11 21:35                   ` Jeff King
2012-04-12 19:29                     ` Neal Kreitzinger
2012-04-12 21:03                       ` Jeff King
     [not found]                         ` <4F8A2EBD.1070407@gmail.com>
2012-04-15  2:15                           ` Jeff King [this message]
2012-04-15  2:33                             ` Neal Kreitzinger
2012-04-16 14:54                               ` Jeff King
2012-05-10 21:43                             ` Neal Kreitzinger
2012-05-10 22:39                               ` Jeff King
2012-04-12 21:08                       ` Neal Kreitzinger
2012-04-13 21:36                       ` Bo Chen
2012-03-31 15:19         ` Neal Kreitzinger
2012-04-02 21:40           ` Jeff King
2012-04-02 22:19             ` Junio C Hamano
2012-04-03 10:07               ` Jeff King
2012-03-31 16:49         ` Neal Kreitzinger
2012-03-31 20:28         ` Neal Kreitzinger
2012-03-31 21:27           ` Bo Chen
2012-04-01  4:22             ` Nguyen Thai Ngoc Duy
2012-04-01 23:30               ` Bo Chen
2012-04-02  1:00                 ` Nguyen Thai Ngoc Duy
2012-03-30 19:11   ` GSoC - Some questions on the idea of "Better big-file support" Bo Chen
2012-03-30 19:54     ` Jeff King

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