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Date: -- (:)
From: Alain Frisch <Alain.Frisch@e...>
Subject: Re: [Caml-list] some profile data
On 26 Jun 2004, skaller wrote:

> This is curious enough to report: I use hash tables quite
> a bit, but i didn't quite expect this profile: 2/3 of ALL time
> doing comparisons??

You should be aware that the polymorphic compare function is slow (for
each block, it has to do a dispatch on the tag, etc...).  In general, it
is a good idea to write your own compare function for your types; it also
allows you to stop the recursive descent where you want (e.g. for
comparing only some fields). And this is a must if you have cyclic
data-structure.


-- Alain

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