Re: min function very slow?

[Daniel J Sebald]

Dmitri A. Sergatskov wrote:

> Daniel J Sebald wrote:
>
> > My eyes are deceiving me.  I came across a slow loop and to my 
> > surprise traced it to the min function.  But I'm wondering how this 
> > can be because I looked through the source code and the min/max 
> > commands inside minmax.cc and dNDArray.cc look identical except 
> > obviously for the change in sign when testing order.  I have a fairly 
> > recent version of 2.1.64.
> >
> > I put together a little test script.  Someone please try the attached 
> > script.  My result is
> >
> > octave:1> minmaxtime
> > looptime = 0.044205
> > maxtime = 0.081752
> > mintime = 7.5832
> >
> > Thank you,
> >
> > Dan
>
> octave:1> minmaxtime
> looptime = 0.035128
> maxtime = 0.065962
> mintime = 0.30040
>
> Regards,
>
> Dmitri
>
> p.s. 2.1.64 + octave-forge-2004.11.16 / athlonMP 2000 MHz


Thank you... so do you think your increase for mintime is a blip in the 
OS?  Yours is a factor of 4.5 difference, mine is a factor of 76.

Dan