Re: git gc ineffective

["Michal Suchánek" <msuchanek@suse.de>]

Hello,

On Mon, Nov 09, 2020 at 12:17:57PM +0100, Andreas Schwab wrote:
> On Nov 09 2020, Michal Suchánek wrote:
> 
> > On Mon, Nov 09, 2020 at 11:17:38AM +0100, Michal Suchánek wrote:
> >> On Mon, Nov 09, 2020 at 10:49:21AM +0100, Andreas Schwab wrote:
> >> > On Nov 09 2020, Michal Suchánek wrote:
> >> > 
> >> > > I noticed I am running out of disk space, and one repository taking up
> >> > > about 38G. Did git gc --aggressive, and the used space *raised* to 42G,
> >> > > and git would report it does gc after every commit.
> >> > 
> >> > Do you have a lot of loose objects?
> >> { for i in  .git/objects/?? ; do ls $i ; done ; } | wc -l
> >> 53392
> > And in the double-size repository it's doubled, too:
> >  { for i in  .git/objects/?? ; do ls $i ; done ; } | wc -l
> >  101167
> 
> git count-objects also shows the size.
$ git count-objects
59853 objects, 43249880 kilobytes
$ du -hs .git
48G     .git
$ git gc --aggressive
Enumerating objects: 1825080, done.
Counting objects: 100% (1825080/1825080), done.
Delta compression using up to 4 threads
Compressing objects: 100% (1803925/1803925), done.
Writing objects: 100% (1825080/1825080), done.
Total 1825080 (delta 1234005), reused 587969 (delta 0), pack-reused 0
Removing duplicate objects: 100% (256/256), done.
Checking connectivity: 2003814, done.
Expanding reachable commits in commit graph: 337512, done.
$ du -hs .git
172G    .git
$ git count-objects
178734 objects, 175309572 kilobytes

> Does it help to prune them --exprire now?

$ git prune
Checking connectivity: 1825478, done.
$ du -hs .git
3.9G    .git
$ git --version
git version 2.26.2

So it is my wrong expectation that 'gc' comand removes garbage. It
creates it en masse.

It just makes is in a way that the 'prune' command that really reoves
garbage can now remove it.

Thanks

Michal