IcebergDB: High Performance Hash Tables Through Stability and Low Associativity

IcebergDB is a fast, concurrent, and resizeable hash table implementation. It supports insertions, deletions and queries for 64-bit keys and values.

• 'iceberg_insert(KeyType key, ValueType value)': insert a key-value pair to the hash table
• 'iceberg_get_value(KeyType key)': return the value associated with the key.
• 'iceberg_remove(KeyType key)': remove the key.

This library depends on libssl, libtbb, and libpmem.

The code uses AVX512 instructions to speed up operatons.

 $ make main
 $ ./main 24 4

The argument to main is the log of the number of slots in the hash table and the number of threads. For example, to create a hash table with 2^30 slots, the argument will be 30.

Contributions via GitHub pull requests are welcome.