From: "Marcin 'Qrczak' Kowalczyk" <qrczak@knm.org.pl>
To: caml-list@inria.fr
Subject: [Caml-list] Specialized dictionaries
Date: Mon, 5 Nov 2001 10:06:42 +0000 (UTC) [thread overview]
Message-ID: <slrn9ucp5i.4an.qrczak@qrnik.zagroda> (raw)
I need dictionaries indexed by ints which must be very fast. I'm
afraid that there is an overhead in using Hashtbl.t such that the
generic hash function must recognize that the value is immediate
instead of using it as a hash directly.
Is it worth to do something with it? What to do? I could copy the first
half of hashtbl.ml and replace all occurrences of the function hash by
land'ing with 0x3FFFFFFF (so the value is nonnegative and mod gives
nonnegative results). Any better idea?
--
__("< Marcin Kowalczyk * qrczak@knm.org.pl http://qrczak.ids.net.pl/
\__/
^^
QRCZAK
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next reply other threads:[~2001-11-05 10:05 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-05 10:06 Marcin 'Qrczak' Kowalczyk [this message]
2001-11-05 10:19 ` Xavier Leroy
2001-11-05 10:32 ` Jean-Christophe Filliatre
2001-11-05 17:36 ` Florian Hars
2001-11-05 17:54 ` Sven
[not found] ` <9s6j7c$i6r$1@qrnik.zagroda>
2001-11-05 18:18 ` Marcin 'Qrczak' Kowalczyk
2001-11-05 18:24 ` Nicolas George
[not found] ` <9s6m53$k16$1@qrnik.zagroda>
2001-11-05 20:56 ` Marcin 'Qrczak' Kowalczyk
2001-11-06 6:53 ` Sven
2001-11-06 0:35 ` Marcin 'Qrczak' Kowalczyk
[not found] ` <9s5pe7$5k6$1@qrnik.zagroda>
2001-11-05 11:49 ` Marcin 'Qrczak' Kowalczyk
2001-11-05 23:40 ` Julian Assange
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