[Savannah-hackers-public] Re: [sr #107505] Please reduce gnash git repo size

[Sylvain Beucler]

On Mon, Oct 25, 2010 at 10:44:00PM +0200, Jim Meyering wrote:
> Sylvain Beucler wrote:
> 
> > On Mon, Oct 25, 2010 at 10:30:13PM +0200, Jim Meyering wrote:
> >> Sylvain Beucler wrote:
> >> > Do you know about concurrency?  I.e. need we make the repo read-only
> >> > for developers when we're doing such a repack?
> >>
> >> >From what I recall, that's not necessary.
> >> I think (probably a gross simplification) it creates a big pack of
> >> whatever's on hand, and then flips a ref (atomic rename) to make the new
> >> pack's objects live, and then removes the packed (and now logically
> >> unlinked) objects at its leisure. Any new objects that came in while
> >> packing are simply not packed.
> >
> > I guess I'll try on a copy of the Gnash repo.
> >
> > It seems there's some kind of special condition in that project
> > though, I don't get nearly the same ratio on my projects (admittedly
> > not nearly as active either :)).
> 
> Those numbers are typical of a large project that's been converted from
> e.g., cvs, and whose repository has never been properly compressed.

I committed during various phases of the 'gc' (counting, compressing,
writing), all the commits were kept, just not packed.

I'll optimize the real gnash.git right now - lots of b/w saved :)

Speaking of git, there are messages from cvs2git piling up in the mail
system, due to no alias defined for cvs2git, which is now done.  I
think you disabled the emacs cvs->git repo but not the cron.

-- 
Sylvain