dirstate reduces status by 1/6th on bzr.dev trees:

[Robert Collins]

On Thu, 2007-02-22 at 07:58 -0600, John Arbash Meinel wrote:
> 
> My earlier work is pretty close to what we need now, so it shouldn't
> take long. The only thing I would like to add is a bisect that can
> find
> all children of a given directory (similar to how
> find_ids_across_trees() works). Bisecting for specific files and dirs
> is
> nice, but being able to do the recursive form should be quite useful.

Agreed: the implementation of paths2ids in workingtree_4 is what you
mean I think : doing a version of that that does not assume everything
is in memory would be good.

-Rob

-- 
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