(Sorry that it's not quite the right place to post this, but org's don't have issues and this repo said "parsing")
There's a nice perf comparison of parsing libs at https://gitlab.com/FinnBender/haskell-parsing-benchmarks – would it make sense to incorporate such tests in a repo here? (Or even just import it wholesale as a first step so it gets visibility? @Fybe may want to chime in )