From bug-request at octave dot org Sat May 15 14:11:29 2004
Subject: Re: bug in octave 2.1.33 (memory leak)
From: Paul Kienzle <pkienzle at users dot sourceforge dot net>
To: "David J.C. MacKay" <mackay at mrao dot cam dot ac dot uk>
Cc: help at octave dot org, bugs@octave.org
Date: Sat, 15 May 2004 15:10:15 -0400

I can confirm this for 2.1.55 on OS X:

	for t=1:10000000, y=1; doit2; end

where doit2.m contains:

	x = y;

By running top in another terminal, I see the memory consumption  
increasing with time.

Paul Kienzle
pkienzle at users dot sf dot net

On May 15, 2004, at 2:49 PM, David J.C. MacKay wrote:

> octave memory leak
> There is a memory leak problem in octave versions 2.1.33 and 2.0.16.  
> To experience the problem, create the following three files (also  
> available in the test.tar file in  
> http://www.inference.phy.cam.ac.uk/mackay/octave/index.html) and run  
> test0 in octave.
>
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
> %%%%%%%
> % test0.m          Program to demonstrate memory leak in octave  
> versions 2.1.33  and   2.0.16
> %                  This is one of three files: test0.m, doit.m, and  
> doit2.m
> %                  To demonstrate the memory leak, please run
> %                                octave:> test0
> %                  David MacKay   mackay at mrao dot cam dot ac dot uk
> T=10000000;
> for t=1:T
>   doit;
> endfor
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> % doit.m
> y=1;
> doit2;
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> % doit2.m
> x=y;
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>
> -- 
> --  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> David J.C. MacKay                                 mackay at mrao dot cam dot ac dot uk
>                              http://www.inference.phy.cam.ac.uk/mackay/
>           Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE. U.K.
>     (01223) 339852 | fax: 354599 | home: 740511 international: +44 1223
>
>
>
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Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
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