Re: bug in octave 2.1.33 (memory leak)

[Paul Thomas]

Yes, so do I on RH9 and octave-2.1.56.

for t=1:1e4; y=1; doit2; end       increases used memory by about 500kbyte
for t=1:1e4; y=1; x=y; end         does nothing

Paul T


Paul Kienzle wrote:

> 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
> address@hidden
>
> 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   address@hidden
> > T=10000000;
> > for t=1:T
> >   doit;
> > endfor
> > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> >
> > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> > % doit.m
> > y=1;
> > doit2;
> > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> >
> > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> > % doit2.m
> > x=y;
> > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> >
> > --
> > --  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> > David J.C. MacKay                                 address@hidden
> >                              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
> >
> >
> >
> > -------------------------------------------------------------
> > Octave is freely available under the terms of the GNU GPL.
> >
> > Octave's home on the web:  http://www.octave.org
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>
>
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> Octave is freely available under the terms of the GNU GPL.
>
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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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