| 摘要 |
A line swapping scheme for reducing invalidation in a snoop filter is provided to reduce the invalidations and improve issuance of back invalidations by selecting a better replacement measure without increasing the size of the snoop filter. A data request is received from one of a plurality of processors(702), and a cache entry position is determined particularly based on the data request(704). Data is stored to the cache entry position in a cache corresponding to the processor(706). Occurrence of cache miss is determined. A consistency record corresponding to the data is stored to affinity corresponding to the cache by storing the data to the cache entry position, which is selected in the affinity corresponding to the cache based on a way-hint replacement policy, when the cache entry position is found in the corresponding affinity(708A). The consistency record is stored to the guided cache entry position of the affinity when the cache entry position is not found in the corresponding affinity(708B).
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