Re: git branch performance problem?

From: Han-Wen Nienhuys <hanwenn@gmail.com>
Date: Oct 10, 2007, 21:17 UTC
Message-ID: <f329bf540710101417w640b2421v73279cc8e34449b8@mail.gmail.com>
In-Reply-To: <8c5c35580710101344t3aed4214h4f999072483c4cb5@mail.gmail.com>

2007/10/10, Lars Hjemli <hjemli@gmail.com>:

Show 12 quoted lines

> On 10/10/07, Han-Wen Nienhuys <hanwenn@gmail.com> wrote:
> > I'm seeing very slow performance with 'git-branch'.  Is this the
> > canonical way to find out the current branch?
>
> You could also try 'git symbolic-ref HEAD', but see below...
>
> > hanwen@lilypond:/tmp/z$ find .git/refs/remotes | wc -l
> > 1856
>
> You probably want to run 'git gc' (which will run 'git pack-refs',
> i.e. put all files currently under .git/refs into a single file). This
> should speed up 'git branch' (and quite possibly other commands too).

This seems rather unuseful. After running gc pack-refs --all, I lost my HEAD,

hanwen@lilypond:~/vc/git5$ git show HEAD fatal: ambiguous argument 'HEAD': unknown revision or path not in the working tree. Use '--' to separate paths from revisions

Is there a way to only pack refs under a certain subdirectory of .git/refs ? (I'm thinking of .git/refs/remotes )

-- 
Han-Wen Nienhuys - hanwen@xs4all.nl - http://www.xs4all.nl/~hanwen