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From: brogoff <brogoff@speakeasy.net>
To: Daniel Andor <da209@cam.ac.uk>
Cc: Ocaml <caml-list@inria.fr>
Subject: Re: [Caml-list] looping recursion
Date: Thu, 29 Jul 2004 05:56:38 -0700 (PDT)	[thread overview]
Message-ID: <Pine.LNX.4.58.0407290542380.22555@shell1.speakeasy.net> (raw)
In-Reply-To: <200407291144.11633.da209@cam.ac.uk>

On Thu, 29 Jul 2004, Daniel Andor wrote:

> On Thursday 29 July 2004 10:57 am, Xavier Leroy wrote:
> > Because for smaller list the "vanilla way" is more efficient.
>
> A little benchmarking with short lists shows that for lists that are near or
> smaller than my cache size (skaller's point), the stack map performs better;
> especially in the byte-code case.
>
> However, the thread was originally about long lists, and for that it is clear
> that algorithms other than the vanilla map are better suited.

It's not at all clear to me. Better how? Faster? Less coding effort? Clearer
to others maintaining the code?

> To me, this  just proves that there's no such thing as universal optimisation (yet!).

I agree with that. And I agree with Xavier's prioritization of a clean fix
to this as a "nice to have but not critical". For now, use ExtLib or roll your
own.

> One's got to actually think about the problem at hand. Damn. ;)

Yes. I'm going back to C and assembly code now, thanks to these arguments :-)

-- Brian

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  reply	other threads:[~2004-07-29 12:56 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-07-27 23:43 briand
2004-07-28  0:27 ` John Prevost
2004-07-28  0:38   ` John Prevost
2004-07-28  1:17     ` skaller
2004-07-28  1:05   ` briand
2004-07-28  1:43     ` Brian Hurt
2004-07-28  2:49       ` briand
2004-07-28  3:12         ` Brian Hurt
2004-07-28  3:20         ` Brian Hurt
2004-07-28  5:54         ` brogoff
2004-07-28  7:22           ` Alex Baretta
2004-07-28 16:38             ` brogoff
2004-07-28 19:40               ` Jon Harrop
2004-07-28 20:18                 ` Brandon J. Van Every
2004-07-29  6:01                   ` Alex Baretta
2004-07-28 21:22                 ` brogoff
2004-07-29  9:13                   ` Daniel Andor
2004-07-29  9:25                     ` Keith Wansbrough
2004-07-29  9:41                       ` Nicolas Cannasse
2004-07-29  9:57                       ` Xavier Leroy
2004-07-29 10:44                         ` Daniel Andor
2004-07-29 12:56                           ` brogoff [this message]
2004-07-29 10:11                     ` skaller
2004-07-29 12:41                     ` brogoff
2004-07-29  6:28               ` Alex Baretta
2004-07-29 14:58                 ` brogoff
2004-07-29 16:12                   ` Brian Hurt
2004-07-29 17:49                     ` james woodyatt
2004-07-29 19:25                       ` Brian Hurt
2004-07-29 20:01                         ` brogoff
2004-07-30  4:42                           ` james woodyatt
2004-07-29 17:44                   ` james woodyatt
2004-07-29 23:12                     ` skaller
2004-07-29 22:42                   ` Alex Baretta
2004-07-30  2:38                     ` Corey O'Connor
     [not found]                     ` <200407300136.14042.jon@jdh30.plus.com>
2004-07-30 12:45                       ` Alex Baretta
2004-07-30 17:07                     ` brogoff
2004-07-30 18:25                       ` [Caml-list] kaplan-okasaki-tarjan deque (was "looping recursion") james woodyatt
2004-07-30 21:20                         ` brogoff
2004-07-31  5:37                           ` james woodyatt
2004-07-28  7:27       ` [Caml-list] looping recursion skaller
2004-07-28 14:36         ` Brian Hurt
2004-07-28 22:05           ` skaller
2004-07-28  0:37 ` skaller

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