Re: Let's stop using CVS for debian.org website

[Ian Jackson]

Jonas Smedegaard writes ("Re: Let's stop using CVS for debian.org website"):
> Quoting Holger Levsen (2016-11-24 10:43:40)
> > $ git clone --depth 1 https://anonscm.debian.org/cgit/webwml/webwml2git.git
> > Cloning into 'webwml2git'...
> > fatal: The remote end hung up unexpectedly
> > fatal: protocol error: bad pack header

I get this too.

> Can you get these related data points too? - relevant for those with 
> limited internet bandwidth (as is the case for some translators):
> 
>   * amount of data transfered over the wire for initial full git clone

231658055 bytes ie 220 Mby, via HTTPS.  [1]
227047513 bytes ie 216 Mby, via SSH.  [1a]

>   * amount of data transfered over the wire for shallow git clone

75485138 bytes ie 71 Mby, via SSH.  [1a] with --depth 1 added

>   * amount of data transfered over the wire for CVS clone

471085959 bytes ie 449 Mby.  [2]

Note however that with CVS it is possible to clone only subtrees.
That makes a huge difference for many use cases.

For example, cvs co only webml/english/devel:

1793649 bytes ie 1.71 Mby.  [2] with cvs clone ... webwml/english/devel

>   * disk space used for CVS clone

501 Mby.

Thanks,
Ian.


[1]
  rm -rf t.* t webwml2git; strace -ffot git clone 
https://anonscm.debian.org/cgit/webwml/webwml2git.git
  grep connect t.* |less
  cat t.* |perl -ne 'next unless m/^recv\(5,/; next if m/ = -1 EAGAIN [^=]+$/; 
die "$_ ?" unless m/ = (\d+)$/; $total+=$1; END { print $total,"\n" }' 

[1a]
  rm -rf t.* t webwml2git2; strace -ffot git clone 
mariner:/volatile/iwj/d/webwml2git webwml2git2
  grep connect t.* |less
  cat t.* |perl -ne 'next unless m/^read\(3,/; next if m/ = -1 EAGAIN [^=]+$/; 
die "$_ ?" unless m/ = (\d+)$/; $total+=$1; END { print $total,"\n" }'

[2]
  rm -rf t t.* webwml; strace -ffot cvs -d cvs.debian.org:/cvs/webwml co webwml
  grep connect t.* |less
  cat t.* |perl -ne 'next unless m/^read\(3,/; next if m/ = -1 EAGAIN [^=]+$/; 
die "$_ ?" unless m/ = (\d+)$/; $total+=$1; END { print $total,"\n" }'


-- 
Ian Jackson <ijack...@chiark.greenend.org.uk>   These opinions are my own.

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