From: Fabrice Le Fessant <Fabrice.Le_fessant@inria.fr>
To: Jon Harrop <jonathandeanharrop@googlemail.com>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Efficient OCaml multicore -- roadmap?
Date: Wed, 20 Apr 2011 11:25:10 +0200 [thread overview]
Message-ID: <4DAEA676.1090500@inria.fr> (raw)
In-Reply-To: <869445701.579183.1303253283515.JavaMail.root@zmbs4.inria.fr>
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On 04/20/2011 12:48 AM, Jon Harrop wrote:
> Fabrice wrote:
>> Well, Java has fully multi-threaded garbage collection, so there is no point that it
>> is possible to do it.
>>
>> The problem is that it has a cost, and the cost is a huge slowdown on mono-
>> threaded programs.
>
> Lucas says "zero". You say "huge". Can we do a better job of quantifying this?
No, I cannot, but you can ask the OC4MC team for numbers, to compare the
performance of their implementation with the official one for sequential
programs (coq, ocamlopt, etc.) I could only find 3 programs on their
slides, not really representative of classical OCaml programs, but one
of them already showed a 17% slowdown compared to OCaml.
Fabrice
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next prev parent reply other threads:[~2011-04-20 9:25 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <2054357367.219171.1300974318806.JavaMail.root@zmbs4.inria.fr>
2011-03-24 23:13 ` Fabrice Le Fessant
2011-03-25 0:23 ` [Caml-list] " Sylvain Le Gall
2011-03-25 9:55 ` [Caml-list] " Alain Frisch
2011-03-25 11:44 ` Gerd Stolpmann
[not found] ` <1396338209.232813.1301046980856.JavaMail.root@zmbs4.inria.fr>
2011-03-25 10:23 ` Fabrice Le Fessant
2011-03-25 12:07 ` Gerd Stolpmann
2011-04-16 12:12 ` Jon Harrop
2011-03-25 10:51 ` Hugo Ferreira
2011-03-25 12:25 ` Gerd Stolpmann
2011-03-25 12:58 ` Hugo Ferreira
[not found] ` <341494683.237537.1301057887481.JavaMail.root@zmbs4.inria.fr>
2011-03-25 13:10 ` Fabrice Le Fessant
2011-03-25 13:41 ` Dario Teixeira
2011-03-30 18:12 ` Jon Harrop
2011-03-25 15:44 ` Hugo Ferreira
2011-03-25 18:24 ` Martin Jambon
2011-03-25 19:19 ` Hugo Ferreira
2011-03-25 20:26 ` Gerd Stolpmann
2011-03-26 9:11 ` Hugo Ferreira
2011-03-26 10:31 ` Richard W.M. Jones
2011-03-30 16:56 ` Jon Harrop
2011-03-30 19:24 ` Richard W.M. Jones
2011-04-20 21:44 ` Jon Harrop
2011-04-19 9:57 ` Eray Ozkural
2011-04-19 10:05 ` Hugo Ferreira
2011-04-19 20:26 ` Gerd Stolpmann
2011-04-20 7:59 ` Hugo Ferreira
2011-04-20 12:30 ` Markus Mottl
2011-04-20 12:53 ` Hugo Ferreira
2011-04-20 13:22 ` Markus Mottl
2011-04-20 14:00 ` Edgar Friendly
2011-04-19 22:49 ` Jon Harrop
2011-03-30 17:02 ` Jon Harrop
2011-04-20 19:23 ` Jon Harrop
2011-04-20 20:05 ` Alexy Khrabrov
2011-04-20 23:00 ` Jon Harrop
[not found] ` <76544177.594058.1303341821437.JavaMail.root@zmbs4.inria.fr>
2011-04-21 7:48 ` Fabrice Le Fessant
2011-04-21 8:35 ` Hugo Ferreira
2011-04-23 17:32 ` Jon Harrop
2011-04-21 9:09 ` Alain Frisch
[not found] ` <20110421.210304.1267840107736400776.Christophe.Troestler+ocaml@umons.ac.be>
2011-04-21 19:53 ` Hezekiah M. Carty
2011-04-22 8:34 ` Alain Frisch
[not found] ` <799994864.610698.1303412613509.JavaMail.root@zmbs4.inria.fr>
2011-04-22 8:06 ` Fabrice Le Fessant
2011-04-22 9:11 ` Gerd Stolpmann
2011-04-23 10:17 ` Eray Ozkural
2011-04-23 13:47 ` Alexy Khrabrov
2011-04-23 17:39 ` Eray Ozkural
2011-04-23 20:18 ` Alexy Khrabrov
2011-04-23 21:18 ` Jon Harrop
2011-04-24 0:33 ` Eray Ozkural
2011-04-28 14:42 ` orbitz
2011-04-23 19:02 ` Jon Harrop
2011-04-22 9:44 ` Vincent Aravantinos
2011-04-21 10:09 ` Philippe Strauss
2011-04-23 17:44 ` Jon Harrop
2011-04-23 17:05 ` Jon Harrop
2011-04-20 20:30 ` Gerd Stolpmann
2011-04-20 23:33 ` Jon Harrop
2011-03-25 20:27 ` Philippe Strauss
2011-04-19 22:47 ` Jon Harrop
[not found] ` <869445701.579183.1303253283515.JavaMail.root@zmbs4.inria.fr>
2011-04-20 9:25 ` Fabrice Le Fessant [this message]
2011-03-25 18:45 ` Andrei Formiga
2011-03-30 17:00 ` Jon Harrop
2011-04-13 3:36 ` Lucas Dixon
2011-04-13 13:01 ` Gerd Stolpmann
2011-04-13 13:09 ` Lucas Dixon
2011-04-13 23:04 ` Goswin von Brederlow
2011-04-16 13:54 ` Jon Harrop
2011-03-24 13:44 Alexy Khrabrov
2011-03-24 14:57 ` Gerd Stolpmann
2011-03-24 15:03 ` Joel Reymont
2011-03-24 15:28 ` Guillaume Yziquel
2011-03-24 15:48 ` Gerd Stolpmann
2011-03-24 15:38 ` Gerd Stolpmann
2011-03-25 19:49 ` Richard W.M. Jones
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