The thing this most makes me think of is Ottertune, that the Carnegie Mellon DB group came up with several years ago for MySQL, https://github.com/cmu-db/ottert

The thing this most makes me think of is Ottertune, that the Carnegie Mellon DB group came up with several years ago for MySQL, https://github.com/cmu-db/ottertune https://github.com/cmu-db/ottertune, and eventually commercialised https://ottertune.com/ https://ottertune.com/ for MySQL and Postgres. I keep thinking about this from a JVM perspective, there's so many settings you can tweak that can have such a drastic impact on performance, depending on your workload, that it seems likely there's some value in automated tuning. The main difficult there (from my probably naive perspective) is figuring out the right feedback loop.