Cuckoo Hash Table
Inspired by the behavior of cuckoo birds, where they displace the eggs of other birds from their nests to be replaced with their own, cuckoo hashing uses a similar approach to collision handling by having a newly inserted value evict an existing key to be relocated to a second hash bucket.
As proven by the famous balls-and-bin problems, cuckoo hashing achieves efficient performance, with insertion taking
O(1) amortized time and O(log log n) time with high probability when the load factor is below 0.5.
This makes cuckoo hashing a powerful choice for applications that require fast lookups and insertions, such as in-memory databases and caching systems.
Languages
C++Tools & Libraries
GTest CMAKE Git
Project Details:
- The Cuckoo Hash Table uses multiple hash functions to resolve collisions efficiently. When inserting a new element, if the target slot is occupied, the existing element is "kicked out" and reinserted using another hash function.
- This project was implemented in C++, with unit tests to verify correctness and performance. The table is optimized for memory usage while maintaining fast lookup and insertion times.