bzr speed

[Diwaker Gupta]

On 2/7/06, Robert Collins <robertc at robertcollins.net> wrote:
> On Tue, 2006-02-07 at 18:58 -0800, Diwaker Gupta wrote:
> > Two days back I did a 'bzr branch' on the main bzr.dev branch. I was
> > on a reasonably fast cable line, and it took *more than one hour* for
> > the operation to finish.
>
> What bzr were you using ? If you where using 0.7 its largely fixed in
> bzr.dev itself.

I was indeed using bzr 0.7. After my pull yesterday, I installed bzr
from bzr.dev and 'bzr version' now reports 0.8pre. So I thought I'll
do a clean pull again today -- it still took MORE than an hour.

> >  Being worked on?
>
> Yes. We have improvements in bzr.dev, and we have the versionedfile
> branch been aimed at as a priority, which makes the time approximately
> the same as hg.

I certainly hope so. But cutting down from 1 hr to 1 min seems
somewhat daunting to me. I haven't scraped through the mailing lists
yet, so don't waste your time on this, but _if_ someone wishes, I'd
love to hear about exactly what are the bottlenecks? I mean, this is
an order of magnitude slowdown, and bzr.dev is nowhere as big as say
the kernel tree.

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