Hi,

At Thu, 2 Dec 2004 15:51:46 +0900,
Yukihiro Matsumoto wrote in [ruby-talk:122141]:
> Nobu himself made a patch to preserve hash order.  I have not decided
> yet to merge it.  The only concern is performance.

The performance wouldn't increase for insertion, iteration and
lookup, but do for direct deleting (except for st_delete_safe).
And the memory usage increases 2 pointers for each hash
entries.

-- 
Nobu Nakada