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Re: Official Git mirror?


From: Óscar Fuentes
Subject: Re: Official Git mirror?
Date: Mon, 21 Feb 2011 06:36:48 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux)

Eli Zaretskii <address@hidden> writes:

>> From: "Oleksandr Gavenko (aka gavenkoa)" <address@hidden>
>> Date: Sun, 20 Feb 2011 23:11:16 +0200
>> 
>> As Bzr have network inefficient protocol I search for Git mirror.
>
> Bzr is no less efficient than Git.  If the initial checkout is slow,
> try one of these two, for the first "bzr branch" command only:
>
>   bzr branch nosmart+bzr://bzr.savannah.gnu.org/emacs/trunk
>
>   bzr branch lp:emacs

address@hidden:~/dev/ff$ time bzr branch lp:emacs
Branched 103368 revision(s).                                                    
                                                                    
real    17m41.424s
user    7m56.250s
sys     0m8.240s

address@hidden:~/dev/ff/git-emacs$ time git clone git://repo.or.cz/emacs.git 
git-emacs
Initialized empty Git repository in /home/oscar/dev/ff/git-emacs/git-emacs/.git/
remote: Counting objects: 597983, done.
remote: Compressing objects: 100% (122520/122520), done.
remote: Total 597983 (delta 474994), reused 597778 (delta 474826)
Receiving objects: 100% (597983/597983), 521.43 MiB | 1.00 MiB/s, done.
Resolving deltas: 100% (474994/474994), done.
real    11m42.616s
user    2m36.630s
sys     0m14.820s


Please note that git downloads all 51 branches that exists or existed on
Savannah while bzr gets just `trunk'.

Git keeps the pipe downloading data at full speed all the time, while
bzr fluctuates a lot, including several long pauses, possibly because
the server is doing some CPU-intensive work for preparing the data.

Maybe the differences are not big enough to notice by most people that
update their Emacs mirrors from time to time, but it is not accurate to
say that bzr's network protocol is no less efficient than git.




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