On Dec 7, 10:25 pm, dmuir <[email protected]> wrote:
> Thadeus,
> Apologies for butting in on this list... but the links you gave show
> exactly why it's important to run your own tests. The comparisons are
> *very* out-dated. There have been over 16 releases of Bazaar since
> then. I don't follow hg or git development, but I'm guessing they've
> had a few releases since then as well...
>
> Overall, Yarko's comparisons are more between Launchpad and Google
> Code than bzr vs hg.

*sigh* - yes, it would appear that  _might_ be so, and I agree - you
should take your own measures...

Let me look at a machine local hg clone of the same, and compare it to
a machine local bzr branch.  The way I did this:  the web2py hg clone
from google code copied, revision history cleared, and then the tree
init'd with each, and then cloned/branched.

hg :  0.514s
bzr:  2.236s

so now it's only ~1/2 an order of magnitude difference (Bigtable, and
Google resources no doubt had impact).

The thing I will point out, regardless of the numbers, the experience
is born out.   Yes, we made it _much_ worse by vresioning compressed
tar files (shame on us); this really exacerbated the situation.
Even so, the feel of hg has always seemed faster (locally, you can
_feel_ this), and these numbers (however empirical) so far bear that
out.

Regards,
- Yarko
---------------------------
~/workspace/web2py$ rm -rf local-hg
~/workspace/web2py$ time hg clone clean-hg-hg local-hg
updating to branch default
603 files updated, 0 files merged, 0 files removed, 0 files unresolved

real    0m0.514s
user    0m0.364s
sys     0m0.152s
~/workspace/web2py$ hg --version
Mercurial Distributed SCM (version 1.4.1)
------------------------------------
~/workspace/web2py$ rm -rf local-bzr
~/workspace/web2py$ time bzr branch clean-hg-bzr local-bzr
Branched 1 revision
(s).

real    0m2.236s
user    0m1.880s
sys     0m0.248s
~/workspace/web2py$ bzr --version
Bazaar (bzr) 2.0.2
  Python interpreter: /usr/bin/python 2.6.2
  Python standard library: /usr/lib/python2.6
  Platform: Linux-2.6.28-17-generic-i686-with-Ubuntu-9.04-jaunty
  bzrlib: /usr/lib/python2.6/dist-packages/bzrlib
  Bazaar configuration: ~/.bazaar
  Bazaar log file: ~/.bzr.log

>
> Cheers,
> David
>
> On Dec 8, 11:19 am, Thadeus Burgess <[email protected]> wrote:
>
>
>
> > There are many.... many... many comparisons on version control systems
> > and times.
>
> > Read this, and we can stop doing our own tests :)
>
> >http://www.infoq.com/articles/dvcs-guide
>
> > Want an even better description of the differences of each of the systems
>
> >http://versioncontrolblog.com/comparison/Bazaar/CVS/Git/Mercurial/Sub...
>
> > How about home directory versioning
>
> >http://joshcarter.com/productivity/svn_hg_git_for_home_directory
>
> > Needless to say, the statistics speak for themselves :)
>
> > -Thadeus
>
> > On Mon, Dec 7, 2009 at 5:54 PM, Yarko Tymciurak
>
> > <[email protected]> wrote:
>
> > > On Dec 7, 5:01 pm, Alexander Belchenko <[email protected]>
> > > wrote:
> > >> Just for the record.
>
> > >> Next time you will compare, try to compare similar history.
>
> > >> bzr repository has ~1500 revisions and it size ~600MB.
> > >> hg repository has only 3 revisions and its size ~6 MB.
>
> > > Yes, indeed, Alexander --- as I and 3 others already pointed out, this
> > > is true.
>
> > > However, even for an up-to-date bzr, an update of 5 files (one rev)
> > > took
>
> > > real    0m13.736s
>
> > > Repeating the same sort of pull from googlecode / hg, to the first hg
> > > checkin:
>
> > >   hg clone -r be4727e88ehttps://web2py.googlecode.com/hg/clean-hg
>
> > > and then updating with the last 3 changesets:
>
> > >   time hg update
>
> > > produces this result:
>
> > >   added 3 changesets with 10 changes to 7 files
> > >   (run 'hg update' to get a working copy)
>
> > >   real 0m1.048s
> > >   user 0m0.164s
> > >   sys  0m0.044s
>
> > > (I didn't count "bzr ci" nor "hg update" in either of these).
>
> > > Still, this is 13 times difference.
>
> > > So empirically, this is still noticably (significantly) different,
> > > but more on the order of one order of magnitude (rather than
> > > serveral).
>
> > > Regards,
> > > - Yarko
>
> > >> Difference in 300 times don't make you think there is something wrong?
>
> > >> Anyway, good luck!
>
> > > --
>
> > > You received this message because you are subscribed to the Google Groups 
> > > "web2py-users" group.
> > > To post to this group, send email to [email protected].
> > > To unsubscribe from this group, send email to 
> > > [email protected].
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