REDUCTION OF EVICTIONS IN CACHE MEMORY MANAGEMENT DIRECTORIES

摘要

A module of cache coherence management by directory, in which each datum stored in cache memory is associated with a state, at least one of which indicates data sharing among a plurality of processors, the module including a storage unit to store a directory containing a list of cache memory addresses, each address possibly associated with a state corresponding to the state of the datum available at this address, and a processing unit configured to update said list, said processing unit being configured so as not to list the address lines related to data associated with the first state.

主权项

1. A module of cache coherence management by directory in a multiprocessor system, in which each datum stored in cache memory is associated with one state among a plurality of states, at least a first state of which indicates data sharing among a plurality of processors of the multiprocessor system, the module comprising:
a storage unit configured to store a directory containing a list of cache memory addresses, each address associated with one state among a plurality of states, said one state corresponding to the state of the datum available at the address, and a processing unit configured to update said list, said processing unit being configured so as not to list in said list address lines related to data associated with the first state indicating data sharing among the plurality of processors.