Inside Google’s Swiss Table: A High-Performance Hash Table Explained
Swiss Tables:A Modern, High-Performance Hash Table Swiss Table is a high-performance hash table design introduced by Google engineers in 2017. It has since inspired many standard-library implementations across languages, including: Go 1.24 ships its map with this design (up to 60% faster) Rust’s standard HashMap has also moved from Robin Hood hashing to a Swiss Table-inspired layout. Datadog reported as much as 70% memory savings after migrating to Swiss Table Open Addressing, Briefly An open addressing hash table is one of the implementation methods for hash tables. Unlike separate chaining — which uses external data structures such as linked lists or trees — open addressing implements the entire hash table as a single contiguous array. ...