Hm. That seems to be comparing against a 2013 era leveldb, which at the time also used mmap. (It's since switched the default for performance reasons) It's als

Hm. That seems to be comparing against a 2013 era leveldb, which at the time also used mmap. (It's since switched the default for performance reasons) It's also strange to me that there's no transition in performance when the data set size grows beyond cache.