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Data processing system and method for efficient L3 cache directory management
Data processing system and method for efficient L3 cache directory management
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机译:高效的三级缓存目录管理的数据处理系统和方法
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摘要
A system and method for cache management in a data processing system having a memory hierarchy of upper memory and lower memory cache. A lower memory cache controller accesses a coherency state table to determine replacement policies of coherency states for cache lines present in the lower memory cache when receiving a cast-in request from one of the upper memory caches. The coherency state table implements a replacement policy that retains the more valuable cache coherency state information between the upper and lower memory caches for a particular cache line contained in both levels of memory at the time of cast-out from the upper memory cache.
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