From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on yquem.inria.fr X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=AWL autolearn=disabled version=3.1.3 X-Original-To: caml-list@yquem.inria.fr Delivered-To: caml-list@yquem.inria.fr Received: from mail2-relais-roc.national.inria.fr (mail2-relais-roc.national.inria.fr [192.134.164.83]) by yquem.inria.fr (Postfix) with ESMTP id D40F1BC6B for ; Thu, 29 Nov 2007 09:20:39 +0100 (CET) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ao8CALQFTkfUnw7Ulmdsb2JhbACCOY0MAQEBAQcEBiIH X-IronPort-AV: E=Sophos;i="4.23,228,1194217200"; d="scan'208";a="4723286" Received: from ptb-relay01.plus.net ([212.159.14.212]) by mail2-smtp-roc.national.inria.fr with ESMTP; 29 Nov 2007 09:20:39 +0100 Received: from [80.229.56.224] (helo=beast.local) by ptb-relay01.plus.net with esmtp (Exim) id 1IxedR-0006GP-RS for caml-list@yquem.inria.fr; Thu, 29 Nov 2007 08:20:37 +0000 From: Jon Harrop Organization: Flying Frog Consultancy Ltd. To: caml-list@yquem.inria.fr Subject: Re: [Caml-list] Help with simple ocaml memoization problem Date: Thu, 29 Nov 2007 08:11:28 +0000 User-Agent: KMail/1.9.5 References: <005301c83260$15d1a850$017ca8c0@countertenor> In-Reply-To: <005301c83260$15d1a850$017ca8c0@countertenor> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200711290811.29007.jon@ffconsultancy.com> X-Spam: no; 0.00; ocaml:01 memoization:01 hash:01 ocaml:01 stdlib:01 frog:98 wrote:01 caml-list:01 inefficient:02 slower:02 benchmark:04 problem:05 space:07 space:07 quite:08 On Thursday 29 November 2007 08:16, David Allsopp wrote: > Map is often slower (though hash tables potentially waste a lot of space... The Map implementation in the OCaml stdlib is also quite inefficient. I did a little benchmark once and discovered that Maps actually waste more space than Hashtbls. -- Dr Jon D Harrop, Flying Frog Consultancy Ltd. http://www.ffconsultancy.com/products/?e