专利名称：Cache apparatus and control method
allowing speculative processing of data
发明人：Akira Naruse,Kouichi Kumon,Mitsuru Sato申请号：US09646704申请日：20000921公开号：US06526480B1公开日：20030225
专利附图：
摘要：The invention relates to cache apparatuses and a control method for managingcache memories in a multiprocessor system. A cache controller holds data which has tobe invalidated for a cache coherence as data in a status where the validity is unknown,
causes a cache hit in response to a reading request from a processor, provides the dataas speculation data, and allows the processor to speculatively process the data.
Therefore, since the data which has to be obtained from another cache or a main storagedue to the invalidation is held in an Unknown status, a cache hit occurs. Thus, a datawaiting time of the processor can be shortened.
申请人：FUJITSU LIMITED
代理机构：Staas & Halsely LLP
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