Vyacheslav Egorov wrote an article[0] on monomorphic function calls and how they impact JavaScript performance. While it's very in-depth, it is over 2 years old at this point, so I'm not sure how well it applies to the current version of V8.
Hello @metrognome, three of your last four posts were [dead] even though none of them appear to break the HN guidelines... I vouched for the last two, the other one is too old for me as user to do anything about it.
You may want to contact the mods about this.