Comment by username223
5 days ago
tl;dr: Two orders of magnitude slower than Rust, so 2-3 orders slower than native. Python on a 2 GHz processor runs as fast as C on a 2-20 MHz processor.
5 days ago
tl;dr: Two orders of magnitude slower than Rust, so 2-3 orders slower than native. Python on a 2 GHz processor runs as fast as C on a 2-20 MHz processor.
*for very specific benchmarks, not "on average"
True, Python could be better or worse than two orders of magnitude slower for your particular use case, but it's 70x slower for recursion and addition that it clearly hasn't special-cased. That's good to know.
Well, if that's good to know --
https://benchmarksgame-team.pages.debian.net/benchmarksgame/...
For compute-heavy code "100x slower than C++" is a good rule of thumb in my experience in python 3.10.
Maybe when you are reinventing the wheel instead of using e.g. numpy, Jax, PyTorch. Python is an ecosystem some of which is tooling built in C/C++. There’s no reason to ignore those libraries just because C devs like to roll their own everything.
quick n dirty Python code will run faster than quick n dirty C++ code