I suspected that sort of thing.
That said, I think for the things that I do, I could still argue that a 3D map of the space completed would be feasible... perhaps not terribly useful - but for what I do, eye-candy actually does have merit when presenting to non-tech heads.

If it is plotting in one direction the time that you are testing over (say +/- X), then another direction (say +/- Y) the performance score of your code, and then in say the Z +/- direction perhaps the series of evolutions that you do.

That way I could show them with pretty charts that as the cycles of the code went on, I moved away from certain points and towards others.

I see your point at the level of usefulness of this - but I still raise my question of if there is a way to in Perl to make 3D plots - I haven't seen it, but then I honestly haven't looked all that hard in the past bit (I looked over a year ago I can recall).