Octave 3.0.1 plotting is very slow

[Jerry]

I noticed that plotting with the new Octave version 3.0.1 on Macports  
is very slow compared to older versions of Octave, e.g. 2.1.71. In  
the old Octave, small plots appear instantaneously, probably before  
the Return key hits its stop. In Octave 3.0.1, there is a lag of  
about a second--enough to be slightly annoying. On larger plots, the  
problem gets much worse. Plotting a 100,000 point vector on old  
Octave takes 3 seconds but on Octave 3.0.1 it takes 21 seconds.

I suppose this is something that I should take up with the Octave  
people but I thought I'd tweak this list and the maintainer just in  
case it is something obviously wrong with this particular version.

BTW, the first time or two that I tried to make a plot (simple, like  
plot(x, y)) with the newly installed version of Octave from Macports,  
it failed completely and emitted about 10 lines of Octave-related  
errors. One or two restarts resulted in plots being made, but slowly,  
as noted above.

Thanks,
Jerry