On Mon, 2005-04-11 at 20:07 -0700, Peter Gordon wrote:
> Ow Mun Heng wrote:
> > dir_index
> >         Use hashed b-trees to speed up lookups in large directories.
> > 
> > Can you explain to me this feature? It's the first I've heard of it.
> 
> I'm not an expert or guru, but I'll sure try. From what I understand, the
> filesystem normally stores the block and inode information in a very linear
> fashion. When you enable this feature, this information is then stored in a 
> hashed B-tree [1] so that the information can be accessed and manipulated
> faster. However, as far as I know this does incur a small storage penalty for
> storing the extra node structure information.
> 
> Hope that helps. :-/
> 
> [1] http://en.wikipedia.org/wiki/B-tree

Thanks for the link. Will look it up and read.

-- 
Ow Mun Heng
Gentoo/Linux on DELL D600 1.4Ghz 
98% Microsoft(tm) Free!! 
Neuromancer 16:18:22 up 2 days, 7:03, 4 users, load average: 0.28, 0.59,
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