Wear Minimization for Cuckoo Hashing: How Not to Throw a Lot of Eggs into One Basket

David Eppstein, Michael T. Goodrich, Michael Mitzenmacher, Paweł Pszona

We study wear-leveling techniques for cuckoo hashing, showing that it is possible to achieve a memory wear bound of $\log\log n+O(1)$ after the insertion of $n$ items into a table of size $Cn$ for a suitable constant $C$ using cuckoo hashing. Moreover, we study our cuckoo hashing method empirically, showing that it significantly improves on the memory wear performance for classic cuckoo hashing and linear probing in practice.

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