* Floating point optimization patch for OCaml bytecode
@ 2005-09-15 23:21 Jeffrey Mathews
2005-09-16 15:17 ` [Caml-list] " Damien Guichard
0 siblings, 1 reply; 2+ messages in thread
From: Jeffrey Mathews @ 2005-09-15 23:21 UTC (permalink / raw)
To: caml-list
I know, I know -- why bother optimizing bytecode? (Compelling reasons
have long been debated -- for me, it's a need to do dynamic- / meta-
programming.)
Anyway, I've written a small patch for the OCaml bytecode compiler and
runtime that significantly improves the performance of a few
floating-point intensive benchmarks (from 30 to 40%) by reducing
boxing and unboxing of intermediate floating point results.
This is still preliminary work, and honestly I'm a little suspicious
that it works so well. Testing has also been light -- it compiles and
runs my 'benchmark' script when patched against ocaml 3.08.1 and
3.08.4 (as well as MetaOcaml, though the patch needs a little
coaxing).
A short write-up can be found at http://dem.inim.us/ocamlfp/README-FP.html
The patch is found at http://dem.inim.us/ocamlfp/ocamlfp-0.1.diff.gz
I'd greatly appreciate feedback, criticism, testing on other platforms.
Thanks in advance,
Jeff
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [Caml-list] Floating point optimization patch for OCaml bytecode
2005-09-15 23:21 Floating point optimization patch for OCaml bytecode Jeffrey Mathews
@ 2005-09-16 15:17 ` Damien Guichard
0 siblings, 0 replies; 2+ messages in thread
From: Damien Guichard @ 2005-09-16 15:17 UTC (permalink / raw)
To: Jeffrey Mathews, caml-list
Thanks Jeffrey.
When OCaml is used as a scripting language (think animation-scripting) it
has to compete with popular scripting language such as Perl, Python, Ruby.
For many people the choice is a tradeoff between language facilities and
implementation performance.
So, yes, bytecode performance matters.
- damien
----- Original Message -----
From: "Jeffrey Mathews" <jnamathews@acm.org>
To: <caml-list@inria.fr>
Sent: Friday, September 16, 2005 1:21 AM
Subject: [Caml-list] Floating point optimization patch for OCaml bytecode
I know, I know -- why bother optimizing bytecode? (Compelling reasons
have long been debated -- for me, it's a need to do dynamic- / meta-
programming.)
Anyway, I've written a small patch for the OCaml bytecode compiler and
runtime that significantly improves the performance of a few
floating-point intensive benchmarks (from 30 to 40%) by reducing
boxing and unboxing of intermediate floating point results.
This is still preliminary work, and honestly I'm a little suspicious
that it works so well. Testing has also been light -- it compiles and
runs my 'benchmark' script when patched against ocaml 3.08.1 and
3.08.4 (as well as MetaOcaml, though the patch needs a little
coaxing).
A short write-up can be found at http://dem.inim.us/ocamlfp/README-FP.html
The patch is found at http://dem.inim.us/ocamlfp/ocamlfp-0.1.diff.gz
I'd greatly appreciate feedback, criticism, testing on other platforms.
Thanks in advance,
Jeff
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