On Fri, Apr 11, 2008 at 2:56 PM, Listman <listman_at_burble.net> wrote:
>
>
>
> >
> > On Thu, Apr 10, 2008 at 3:43 PM, John Peacock
> > <john.peacock_at_havurah-software.org> wrote:
> > > Benjamin Smith-Mannschott wrote:
> > >
> > > > Yuck. At first blush, this seems to me a pretty unnatural way to work.
> > > >
> > >
> > > Me too.
> > I think hundreds of thousands of perforce users would disagree with
> > you guys. ;-)
> >
> >
> > I have to admit, when I first started using perforce a couple of years
> > ago, it seemed strangely restrictive compared to cvs or svn. But now
> > running 'p4 edit' doesn't seem any weirder to me than running 'svn
> > add', 'svn rm', 'svn mv', or 'svn cp'. It's just one more case of
> > telling the system what you're doing. And holy awesome, what an
> > incredible speed boost you get in return!
> >
> >
>
> I'd agree with this. I can't understand how anyone would see "adequate" svn
> performance when the repository gets large (read 10's of 1000's of files).
>
> Note that "warming the cache" 90% of the time doesn't help - my company has
> ~ 50
> users and the cache quickly gets out of date..
>
> we also have perforce here and i thought you'd be interested in seeing a
> comparison.
>
>
> for a 505MB working copy with 36,781 objects
>
> comparing Subversion and Perforce:
>
> SUBVERSION
> [cad_at_x09 /home/cad/trials/svn/work] -57- % time svn status
> ? fab7
> 1.614u 5.141s 5:09.28 2.1% 0+0k 0+0io 8pf+0w
>
>
> PERFORCE
> [cad_at_x09 /home/cad/trials/versic/p4/work] -78- % time p4 opened ...
> ... - file(s) not opened on this client.
> 0.000u 0.000s 0:00.00 0.0% 0+0k 0+0io 0pf+0w
>
> [sbutler_at_x07 /home/sbutler/trials/p4/work] -70- % time p4 sync
> File(s) up-to-date.
> 0.000u 0.000s 0:00.14 0.0% 0+0k 0+0io 0pf+0w
>
>
> so subversion took 5:09min to report back and p4 less than a second.
>
>
> NOTE that svn update is very slow also.
Perforce and Subversion have different scaling characteristics. Some
situations work better for Perforce; some work better for Subversion;
others would work better for Subversion if the wc was improved.
--dave
--
David Glasser | glasser@davidglasser.net | http://www.davidglasser.net/
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Received on 2008-04-12 00:05:51 CEST