Re: [KORG] Re: kernel.org lies about latest -mm kernel

From: Nigel Cunningham
Date: Tue Jan 09 2007 - 00:52:28 EST


Hi again.

On Tue, 2007-01-09 at 06:09 +0100, Adrian Bunk wrote:
> On Tue, Jan 09, 2007 at 03:29:35PM +1100, Nigel Cunningham wrote:
> > Hi again.
> >
> > On Sat, 2007-01-06 at 21:17 -0800, H. Peter Anvin wrote:
> > > Nigel Cunningham wrote:
> > > > On Tue, 2006-12-26 at 08:49 -0800, H. Peter Anvin wrote:
> > > >> The two things git users can do to help is:
> > > >>
> > > >> 1. Make sure your alternatives file is set up correctly;
> > > >> 2. Keep your trees packed and pruned, to keep the file count down.
> > > >>
> > > >> If you do this, the load imposed by a single git tree is fairly negible.
> > > >
> > > > Sorry for the slow reply, and the ignorance... what's an alternatives
> > > > file? I've never heard of them before.
> > > >
> > >
> > > Just a minor correction; it's the "alternates" file
> > > (objects/info/alternates).
> >
> > I went looking for documentation on how to use the alternates feature,
> > and found an email from September 2005
> > (http://www.ussg.iu.edu/hypermail/linux/kernel/0509.1/2860.html) that
> > says:
> >
> > <quote>
> > /pub/scm/linux/kernel/git/$u/$tree
> >
> > Of course, you may have more than one such $tree. The
> > suggestion by Linus was to do (please do not do this yet -- that
> > is what this message is about):
> >
> > $ cd /pub/scm/linux/kernel/git/$u/$tree
> > $ cat /pub/scm/linux/kernel/git/torvalds/linux-2.6/objects \
> > >objects/info/alternates
> > $ GIT_DIR=. git prune
> > </quote>
> >
> > Are these instructions still correct in the case of master.kernel.org?
>
> It works for me (instead of "git prune" I was using
> "git-repack -a -d -l -f").

There's a typo in the above commands. It should be echo instead of cat.
In addition, just typing "git prune" didn't save much. When I did
git-prune -a -l -d, however, all of my trees shrunk to just a couple of
megs (just my deltas, I assume).

Maybe this will be helpful to someone else.

Regards,

Nigel

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