Some selling benchmark
This benchmark does some crazy calculations, which usually is never done in pure perl.
It calculate N in 10000 degree and each step it gets mod (%) 10000 from temporary result.
It is here just to demonstrate benefits of parallelizing calclulations.
So in the end you have as much benefit as core cpu you have with almost the same code.
does not want result context
Now if parallel_map can see it is called in scalar or void context
it optimizes execution and does not collect result from childs.
This way it is similar to for loop.