CONOPT time Total 0.037 seconds
of which: Function evaluations 0.000 = 0.0%
1st Derivative evaluations 0.000 = 0.0%
2nd Derivative evaluations 0.000 = 0.0%
Directional 2nd Derivative 0.000 = 0.0%
My models tend to show a relatively small percentage of time spent in the 2nd derivatives (not sure if you can conclude from this I am a good modeler). But if you have a model that shows poor timings here, I am sure the GAMS people would like to know about this, so send the model to firstname.lastname@example.org. Furthermore, in such a case you may want to check if AIMMS does better on your model.