Info Q article on DVCS - a request and some feedback

[Ian Clatworthy]

AUVRAY Sebastien wrote:
> Hi Ian,
> 
> With:
> /cd mozilla.bzr
> bzr clone master my-fix/
> I get better times: 117sec, which is nearly twice faster than without
> shared repository but still a lot higher than competitors.

OK. Could you please update your graph (and supporting data) in your
article accordingly?

Given the slowness you're seeing vs my earlier benchmarks, I'm guessing
we're slowing down badly in this case as history grows. This may well be
because we validate everything as we create a new branch. In Bazaar,
clone is more than just "copy" - it also prevents any corruptions in the
source being propagated.

While we don't openly document it, you can always use 'cp -a' to clone a
Bazaar branch inside a shared repository. Because of our storage
architecture (where the revisions are stored in the shared repo), this
is space efficient (without the need for hardlinking).

Anyhow, thanks for the updated measurement. I'll raise a bug about this
issue.

Ian C.