Here are some benchmarks I ran to compare the speed of running a list of regexes on all the Markdown files in my Obsidian folder (210 when I wrote this). The benchmark compares running the regexes on memory-mapped files versus loading the file contents as a string and running the regexes on that string. I’m using hyperfine to run the benchmarks. Considerations When we memory-map a file, we work with bytes. Python can run regexes over those bytes too, but the pattern has to be .encode()‘ed...
