Playing with counting word frequencies (and the performance thereof) in various languages. See the full article for context and background: https://benhoyt.com/writings/count-words/

To run the tests and benchmarks (you'll need Go, Rust, Python 3, AWK and perhaps other tools installed). Only tested on Linux:

./test.sh
./benchmark.py

Kudos and credits to Andrew Gallant for the Rust versions.