Re: Slow fetches of tags

From: Ralf Baechle <ralf@linux-mips.org>
Date: May 25, 2006, 13:27 UTC
Message-ID: <20060525132746.GA30476@linux-mips.org>
In-Reply-To: <7vslmz6zah.fsf@assigned-by-dhcp.cox.net>

On Wed, May 24, 2006 at 11:41:26AM -0700, Junio C Hamano wrote:

Show 16 quoted lines

> > $ git-name-rev 0bcf7932d0ea742e765a40b
> > 0bcf7932d0ea742e765a40b master
> > $ git-name-rev 54e938a80873e85f9c02ab4
> > 54e938a80873e85f9c02ab4 34k-2.6.16.18
> > $ git-name-rev 2d0a9369c540519bab8018e
> > 2d0a9369c540519bab8018e 34k-2.6.16.18~1
> > $ git-name-rev bf3060065ef9f0a8274fc32
> > bf3060065ef9f0a8274fc32 34k-2.6.16.18~2
> > $ git-name-rev 27602bd8de8456ac619b77c
> > 27602bd8de8456ac619b77c 34k-2.6.16.18~3
> >
> > It's sending every object back to the start of history ...
> 
> Is this "master" commit 0bcf79 part of v2.6.16.18 history?  If
> not, how diverged are you?  That is, what does this command tell
> you?

No, the master branch is where the MIPS development happens and it's tracking Linus' master branch. The fact that I'm talking about this in context of -stable / v2.6.16.18 is that I started looking into why things were taking minutes when doing a small fetch from 2.6.16-stable. It happens just as well with Linus' tree or yet others like Matthias Urlich's -mm git tree.

> 	git rev-list b7d0617..master | wc -l
> 
> Here, b7d0617 is the name of the commit object that is pointed
> by v2.6.16.18 tag.

$ git rev-list b7d0617..master | wc -l 12845 $ git rev-list master..b7d0617 | wc -l (that is swapped arguments) 173 $

  Ralf