Actually single-level store concept was introduced in Atlas, used in MULTICS, AS/400. [1] Some modern and quite high-performance solutions are using this concep

Actually single-level store concept was introduced in Atlas, used in MULTICS, AS/400. [1] Some modern and quite high-performance solutions are using this concept, e.g. LMDB [2] [1] https://en.wikipedia.org/wiki/Single-level_store https://en.wikipedia.org/wiki/Single-level_store [2] https://symas.com/getting-down-and-dirty-with-lmdb-qa-with-symas-corporations-howard-chu-about-symass-lightning-memory-mapped-database/ https://symas.com/getting-down-and-dirty-with-lmdb-qa-with-s...