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 Open addressing is one way to implement a hash table. 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. ...