Dynamic heterogeneous hashing functions in ranges of system memory addressing space

摘要

Dynamic heterogeneous hashing function technology for balancing memory requests between multiple memory channels is described. A processor includes functional units and multiple memory channels, and a memory controller unit (MCU) coupled between them. The MCU includes a dynamic heterogeneous hashing module (DHHM) that includes multiple specific-purpose hashing function blocks that define different interleaving sequences for memory requests to alternately access the multiple memory channels. The DHHM also includes a hashing-function selection block. The hashing-function selection block is operable to identify a requesting functional unit originating a current memory request and to select one of the specific-purpose hashing function blocks for the current memory request in view of the requesting functional unit.