COHERENCY CONTROL MODULE FOR MAINTAINING CACHE COHERENCY IN A MULTI-PROCESSOR-BUS SYSTEM

A mechanism for efficiently filtering snoop requests in a multi-processor bus system. Specifically, a snoop filter is provided to filter unnecessary snoops in a multi-bus system.

Coherency control module for maintaining cache coherency in a multi-processor-bus system

COMPUTING; CALCULATING OR COUNTING

Accessing, addressing or allocating within memory systems or architectures -Addressing or allocation; Relocation -in hierarchically structured memory systems, e.g. virtual memory systems-Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches-Multiuser, multiprocessor or multiprocessing cache systems-Cache consistency protocols-using directory methods-Associative directories 

ELECTRIC DIGITAL DATA PROCESSING 

Accessing, addressing or allocating within memory systems or architectures -Addressing or allocation; Relocation -in hierarchically structured memory systems, e.g. virtual memory systems-Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches-Multiuser, multiprocessor or multiprocessing cache systems-Cache consistency protocols-using a bus scheme, e.g. with bus monitoring or watching means

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