From: Jon Harrop <jon@jdh30.plus.com>
To: caml-list@inria.fr
Subject: Re: [Caml-list] Caml monomorphisation (was Observations on OCaml vs. Haskell)
Date: Tue, 28 Sep 2004 18:50:19 +0100 [thread overview]
Message-ID: <200409281850.19855.jon@jdh30.plus.com> (raw)
In-Reply-To: <Pine.A41.4.44.0409281155590.1122358-100000@ibm1>
On Tuesday 28 September 2004 11:10, Diego Olivier Fernandez Pons wrote:
> Why doesn't Caml compiler specialize the type of [max]?
OCaml tends to side with concise code. So it doesn't like inlining and type
specializing, preferring heavy factoring and run-time dispatch instead.
Analysing the productivity of these trade-offs is notoriously tricky because
there are lots of interdependent variables. So the heuristics for inlining
and type specialization are suspiciously subjective. Hence, the current
approach is just being cautious.
I've considered writing a whole program optimiser to do things like type
specialization and inlining but in most cases it wouldn't buy you much. It
some it could buy you a few times better performance though...
Cheers,
Jon.
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next prev parent reply other threads:[~2004-09-28 17:54 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-27 19:08 [Caml-list] Observations on OCaml vs. Haskell John Goerzen
2004-09-27 20:24 ` Rafael 'Dido' Sevilla
2004-09-27 21:34 ` Danny Yoo
2004-09-28 7:22 ` Ville-Pertti Keinonen
2004-09-28 18:02 ` Jon Harrop
2004-09-29 14:26 ` Brian Hurt
2004-09-29 14:20 ` Jon Harrop
2004-09-29 15:03 ` Dmitry Lomov
2004-09-28 10:10 ` [Caml-list] Caml monomorphisation (was Observations on OCaml vs. Haskell) Diego Olivier Fernandez Pons
2004-09-28 12:01 ` Richard Jones
2004-09-28 17:50 ` Jon Harrop [this message]
2004-09-28 1:56 ` [Caml-list] Observations on OCaml vs. Haskell skaller
2004-09-28 9:31 ` Keith Wansbrough
2004-09-28 9:55 ` Rafael 'Dido' Sevilla
2004-09-27 21:11 ` Christophe TROESTLER
2004-09-28 1:32 ` Jacques GARRIGUE
2004-09-28 1:46 ` skaller
2004-09-28 8:27 ` Richard Jones
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