Re: Move to git is imminent - awaiting Stefan's approval

[Angelo Graziosi]

Il 08/01/2014 18.32, Eli Zaretskii ha scritto:
> > Date: Tue, 07 Jan 2014 21:08:51 +0100
> > From: Angelo Graziosi <address@hidden>
> > CC: address@hidden, address@hidden, address@hidden
> >
> > $ cd emacs.git/
> > $ git gc --aggressive
> > Counting objects: 735546, done.
> > Delta compression using up to 2 threads.
> > Compressing objects: 100% (734446/734446), done.
> > Writing objects: 100% (735546/735546), done.
> > Total 735546 (delta 589814), reused 143177 (delta 0)
> > Checking connectivity: 735546, done.
> >
> > which took almost 3 hours to be completed.
> >
> > And the size is:
> >
> > $ cd ..
> >
> > $ du -s emacs.git/
> > 327M    emacs.git/
> >
> > which seems very good!
>
> I guess this was on Windows 7, right?  I succeeded to do this on a

NO!! It is on Win XP 32 bit (SP3) with AMD Athlon 64 X2 Dual Core 
Processor 3800+ and 1.7GiB of RAM.

On the same machine I have Kubuntu 12.04 and "git gc --aggressive" works 
there too..

BTW, I noticed that running "git pull" to have the local repository 
updated, the size increases of about 1 MiB.

> 64-bit Windows 7 as well, and it took about 2 hours.  And now I
> understand why git ran out of memory on Windows XP: the memory
> footprint of git-pack-objects goes up to 3GB, whereas Windows XP has
> only 3GB address space for all the applications.

Here, on XP, Task Manager shows a memory usage under 1500 MiB (about 1.4 
GiB)

In any case this

> So I guess we will need to repack the repository on savannah as a
> prerequisite for switching, and then make sure it is repacked
> regularly afterwards.  Otherwise, people with low memory and/or slow
> CPUs will need many hours to do this on their local machines.

should be mandatory..

Ciao,
 Angelo.