> That worked well when the storage system was made of spinning disks, and you were incentivized to use data structures laying data out appropriate for that acc

> That worked well when the storage system was made of spinning disks, and you were incentivized to use data structures laying data out appropriate for that access pattern. It was all complementary and cooperated pretty well. > Then SSDs became commonplace. You are laughably wrong. Random I/O is random I/O whether you do it using lseek/read or whether you access a page offset in a mmap. And we've got hundreds of hours of benchmarks that show that LMDB outperforms everything else, whether on spinning rust or solid state. http://www.lmdb.tech/bench/ http://www.lmdb.tech/bench/