This is very cool, but note that it is a microbenchmark comparing the overhead of calling plus(int, int). This is a very specific case of FFI that is easy and s

This is very cool, but note that it is a microbenchmark comparing the overhead of calling plus(int, int). This is a very specific case of FFI that is easy and simple. For my work on the Oil shell, I care more about moving strings back and forth across the VM boundary (not to mention bigger objects like records and arrays of records). There are many more design choices in that case, and I suspect the results will also look different.