Profiling
Is your feature request related to a problem? Please describe.
I realize my testing loop is not efficient at all. I need to understand where is the bottleneck and how I can make it faster.
Describe the solution you'd like
An option similar to fast_dev_run where the training OR validation OR testing loop is profiled, in order to see where is the bottleneck.
Describe alternatives you've considered
No alternative so far.