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Indeed. A more interesting comparison would be between C/C++ based shared library and Rust based one.

Or how about Rust-FFI, C-FFI, C-API directly, Nim-to-C-API (pymod), Julia python module, ctypes, cython, libboost, and swig for a good measure.

There are examples of each of these compared to one or the other but it would be nice to see all of them compared in a few benchmarks.

One benchmark to rule-them-all would sound awesome!