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Subject: Problem with Object Oriented Design (programming issue)

Author: Mathieu Pagé

Date: 09:54:21 09/15/03

Hi,
   As I said 2 or 3 weeks ago I have tried to redesign my chess engine in a
object oriented way (in C++). It is done, but ...

   I have some _really_ bad performaces. My code was used to do a perft(5) at a
speed of about 630 000 nps (on a old Celeron 800mhz). Now, the OO version do
about 4500 nps on the same computer and with the same compiler options.

   I have not still investigate so much, so maybe I will find that there is some
bad code causing this problem.

   I thought that a performances problem could happen while programming with
objects, but i'd never tought that it could be so much. Is it normal or
expectable ?

   And if you think you know what i am doing wrong, please give me a hint :)

Mathieu Pagé
pagemathieu at hotmail dot com

Re: Problem with Object Oriented Design (programming issue) Daniel Clausen 10:02:53 09/15/03
- Re: Problem with Object Oriented Design (programming issue) Mathieu Pagé 16:28:39 09/15/03
  - Re: Problem with Object Oriented Design (programming issue) Dave Gomboc 12:58:03 09/20/03
    - uh oh... CCC posted slow through opera so kept enter AMAI (NT) Vincent Diepeveen 17:08:40 09/21/03
      - Glad to see that your browser also takes benefit of 500 processors! (nt) Omid David Tabibi 12:52:19 09/22/03
    - Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 17:07:14 09/21/03
      - Re: Problem with Object Oriented Design (programming issue) Dave Gomboc 19:16:30 09/21/03
        
        Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 05:36:46 09/22/03
        
        Re: Problem with Object Oriented Design (programming issue) Dave Gomboc 10:48:47 09/22/03
    - Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 17:07:13 09/21/03
      - Re: Problem with Object Oriented Design (programming issue) Matthew White 15:27:05 09/22/03
      - Re: Problem with Object Oriented Design (programming issue) Daniel Clausen 11:46:47 09/22/03
    - Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 17:07:11 09/21/03
    - Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 17:07:11 09/21/03
    - Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 17:07:11 09/21/03
      - Re: Problem with Object Oriented Design (programming issue) Robert Hyatt 18:15:06 09/21/03
        
        Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 05:39:49 09/22/03
        
        Re: Problem with Object Oriented Design (programming issue) Dave Gomboc 09:08:06 09/24/03
        
        Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 15:58:51 09/24/03
        
        Re: Problem with Object Oriented Design (programming issue) Dave Gomboc 22:04:55 09/28/03
        
        Re: Problem with Object Oriented Design (programming issue) Robert Hyatt 08:43:28 09/25/03
        
        Re: Problem with Object Oriented Design (programming issue) Robert Hyatt 09:12:19 09/22/03
        
        Re: Problem with Object Oriented Design (programming issue) Pat King 12:19:04 09/23/03
        
        OOP: objects and methods Edward Seid 20:25:15 09/21/03
        
        Re: OOP: objects and methods Dan Andersson 12:37:17 09/22/03
        
        Re: OOP: objects and methods Bo Persson 09:21:21 09/22/03
        
        Re: OOP: objects and methods Robert Hyatt 09:14:04 09/22/03
        
        Re: OOP: objects and methods Daniel Clausen 09:54:26 09/22/03
        
        Re: OOP: objects and methods Bo Persson 10:27:54 09/22/03
        
        Re: OOP: objects and methods Dan Andersson 12:40:20 09/22/03
        
        Re: OOP: objects and methods Bo Persson 14:33:35 09/22/03
        
        Re: OOP: objects and methods Dan Andersson 14:56:48 09/22/03
        
        Re: OOP: objects and methods Daniel Clausen 14:51:21 09/22/03
        
        Re: OOP: objects and methods Pat King 12:38:50 09/23/03
        
        Re: OOP: objects and methods Bo Persson 15:01:06 09/22/03
        
        Re: OOP: objects and methods Daniel Clausen 15:09:24 09/22/03
        
        Re: OOP: objects and methods Bo Persson 02:35:48 09/23/03
        
        Re: OOP: objects and methods Daniel Clausen 11:34:20 09/22/03
        
        Re: OOP: objects and methods Anthony Cozzie 10:45:03 09/22/03
        
        Re: OOP: objects and methods Bo Persson 14:42:28 09/22/03
        
        Re: OOP: objects and methods Anthony Cozzie 16:29:51 09/22/03
        
        Re: OOP: objects and methods Robert Hyatt 10:23:41 09/22/03
        
        Re: OOP: objects and methods Vincent Diepeveen 06:16:09 09/22/03
        
        Re: OOP: objects and methods Gerd Isenberg 11:51:03 09/22/03
        
        Re: OOP: objects and methods Dan Andersson 13:50:49 09/22/03
        
        Re: OOP: objects and methods Gerd Isenberg 15:09:36 09/22/03
        
        Re: OOP: objects and methods Dan Andersson 15:39:14 09/22/03
        
        Re: OOP: objects and methods Bo Persson 09:03:37 09/22/03
        
        Re: OOP: objects and methods Vincent Diepeveen 09:26:28 09/22/03
        
        Re: OOP: objects and methods Robert Hyatt 09:14:59 09/22/03
    - Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 17:07:11 09/21/03
    - Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 17:07:11 09/21/03
    - Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 17:07:11 09/21/03
    - Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 17:07:11 09/21/03
    - Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 17:07:10 09/21/03
    - Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 17:07:04 09/21/03
    - Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 17:07:03 09/21/03
    - Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 17:07:01 09/21/03
    - Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 17:07:01 09/21/03
    - Re: Problem with Object Oriented Design (programming issue) Vincent Diepeveen 17:07:00 09/21/03
  - Re: Problem with Object Oriented Design (programming issue) Pat King 07:57:30 09/16/03
    - Re: Problem with Object Oriented Design (programming issue) Rick Bischoff 10:22:02 09/17/03
      - Re: Problem with Object Oriented Design (programming issue) Pat King 15:56:13 09/17/03
    - Re: Problem with Object Oriented Design (programming issue) Daniel Clausen 08:45:37 09/16/03
      - Re: Problem with Object Oriented Design (programming issue) Pat King 16:14:24 09/17/03
        
        Re: Problem with Object Oriented Design (programming issue) Daniel Clausen 02:41:35 09/18/03
        
        Re: Problem with Object Oriented Design (programming issue) Pat King 18:19:34 09/19/03
  - Re: Problem with Object Oriented Design (programming issue) Bo Persson 23:35:03 09/15/03
- Re: Problem with Object Oriented Design (programming issue) Dan Andersson 10:40:09 09/15/03
  - Re: Problem with Object Oriented Design (programming issue) Pat King 16:20:34 09/17/03
    - Re: Problem with Object Oriented Design (programming issue) Dan Andersson 11:46:26 09/18/03
  - Re: Problem with Object Oriented Design (programming issue) Roy Eassa 12:18:58 09/16/03
    - Re: Problem with Object Oriented Design (programming issue) Dan Andersson 13:34:56 09/16/03

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