From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu, 23 Jul 2009 00:55:51 GMT
Subject: Re: Performance issue of 'git branch'
Message-ID: <alpine.LFD.2.01.0907221753290.3352@localhost.localdomain>
In-Reply-To: <alpine.LFD.2.01.0907221742010.3352@localhost.localdomain>



On Wed, 22 Jul 2009, Linus Torvalds wrote:
> 
> If you have ext3, you'd do something like
> 
> 	tune2fs -O dir_index /dev/<node-of-your-filesystem-goes-here>

One last email note on this subject. Really. Promise.

If you do that "tune2fs -O dir_index" thing, it will only take effect for 
_newly_ created directories. So you'll still need to do that whole 
"mv+cp+rm" dance, just to make sure that the refs directories are all new.

I think you can also force all directories to be indexed by using fsck, 
but I forget the details. I'm sure man-pages will have it. Or google.

		Linus