Maybe more than that if you have a sub-optimal hash map implementations. There are a bunch of those floating around - for example, Java's build-in HashMap has t

Maybe more than that if you have a sub-optimal hash map implementations. There are a bunch of those floating around - for example, Java's build-in HashMap has traditionally been kneecapped by lack of value types, and if you are not careful you can incur 2x cache misses per lookup...