From bug-octave-request at bevo dot che dot wisc dot edu  Wed Dec  8 00:54:52 1999
Subject: 2.1.19 Slow "source"  
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: etienne at isr dot isr dot ist dot utl dot pt
Cc: bug-octave at bevo dot che dot wisc dot edu, etienne@isr.ist.utl.pt
Date: Wed, 8 Dec 1999 00:55:05 -0600 (CST)

On  6-Dec-1999, etienne grossmann <etienne at anonimo dot isr dot ist dot utl dot pt> wrote:

| 
| 
|   Hello,
| 
|   This is just to tell the developers that there may be something
| wrong with the "source" function : 
| 
|   I have a file "data/work/calib2/centers.m" of the form :
| 
| ======================================================================
| % 
| % data/work/calib2/centers.m , created by any2m.m on Mon Dec 06 09:39:21 1999
|  
| imbase = 'data/images/calib_circles/calib2%02i.pgm' ;
| 
| imsz = reshape([  768 
|  576  ]  ,1,2 )  ;
| 
| centers = reshape([  22.3 
|  90.47499999999999 
| 
|  ... something like 20395 lines, each with a single number on it ...
| 
| 706.5321100917431 
|  395.0137614678899  ]  ,50,408 )  ;
| 
| ======================================================================
| 
|   This file cannot be loaded in Octave 2.1.19, whereas Matlab loads it
| about 2 seconds. Octave takes 30seconds to load smaller (4000 lines)
| files of the same kind. Is there a known cause of slowness in the
| "source" function? Do you think it is easy to fix?

I see the problem, but not the fix.

A simple workaround is to put the data in a file and use load to read
it instead.

jwe



-----------------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.che.wisc.edu/octave/octave.html
How to fund new projects:  http://www.che.wisc.edu/octave/funding.html
Subscription information:  http://www.che.wisc.edu/octave/archive.html
-----------------------------------------------------------------------