Yarko, Thanks for the updated benchmark. Will pass it on to bzr devs. Indeed, bzr is a bit slower than hg, and I'd love to see that performance gap closed. All the best with web2py!
Cheers, David On Dec 8, 5:22 pm, Yarko Tymciurak <[email protected]> wrote: > 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 --versionMercurialDistributed 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]. > > > > For more options, visit this group > > > > athttp://groups.google.com/group/web2py?hl=en. -- You received this message because you are subscribed to the Google Groups "web2py-users" group. 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