FAIRNESS MECHANISM FOR STARVATION PREVENTION IN DIRECTORY-BASED CACHE COHERENCE PROTOCOLS

摘要

Methods and apparatus relating to a fairness mechanism for starvation prevention in directory-based cache coherence protocols are described. In one embodiment, negatively-acknowledged (nack'ed) requests from a home agent may be tracked (e.g., using distributed linked-lists). In turn, the tracked requests may be served in a fair order. Other embodiments are also disclosed.