From: Martin Langhoff <martin.langhoff@gmail.com>
To: Marius Storm-Olsen <mstormo@gmail.com>
Cc: Git Mailing List <git@vger.kernel.org>
Subject: Re: Delta compression not so effective
Date: Wed, 1 Mar 2017 15:19:29 -0500 [thread overview]
Message-ID: <CACPiFC+=ZpHT=xh7Y8f68BcXxNYx8EFJfzqqG2ub4NL=uREu7g@mail.gmail.com> (raw)
In-Reply-To: <4d2a1852-8c84-2869-78ad-3c863f6dcaf7@gmail.com>
On Wed, Mar 1, 2017 at 8:51 AM, Marius Storm-Olsen <mstormo@gmail.com> wrote:
> BUT, even still, I would expect Git's delta compression to be quite effective, compared to the compression present in SVN.
jar files are zipfiles. They don't delta in any useful form, and in
fact they differ even if they contain identical binary files inside.
> Commits: 32988
> DB (server) size: 139GB
Are you certain of the on-disk storage at the SVN server? Ideally,
you've taken the size with a low-level tool like `du -sh
/path/to/SVNRoot`.
Even with no delta compression (as per Junio and Linus' discussion),
based on past experience importing jar/wars/binaries from SVN into
git... I'd expect git's worst case to be on-par with SVN, perhaps ~5%
larger due to compression headers on uncompressible data.
cheers,
m
--
martin.langhoff@gmail.com
- ask interesting questions ~ http://linkedin.com/in/martinlanghoff
- don't be distracted ~ http://github.com/martin-langhoff
by shiny stuff
next prev parent reply other threads:[~2017-03-01 21:18 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-01 13:51 Delta compression not so effective Marius Storm-Olsen
2017-03-01 16:06 ` Junio C Hamano
2017-03-01 16:17 ` Junio C Hamano
2017-03-01 17:36 ` Linus Torvalds
2017-03-01 17:57 ` Marius Storm-Olsen
2017-03-01 18:30 ` Linus Torvalds
2017-03-01 21:08 ` Martin Langhoff
2017-03-02 0:12 ` Marius Storm-Olsen
2017-03-02 0:43 ` Linus Torvalds
2017-03-04 8:27 ` Marius Storm-Olsen
2017-03-06 1:14 ` Linus Torvalds
2017-03-06 13:36 ` Marius Storm-Olsen
2017-03-07 9:07 ` Thomas Braun
2017-03-01 20:19 ` Martin Langhoff [this message]
2017-03-01 23:59 ` Marius Storm-Olsen
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