ALLOCATION AND WRITE POLICY FOR A GLUELESS AREA-EFFICIENT DIRECTORY CACHE FOR HOTLY CONTESTED CACHE LINES
摘要
Methods and apparatus relating to allocation and/or write policy for a glueless area-efficient directory cache for hotly contested cache lines are described. In one embodiment, a directory cache stores data corresponding to a caching status of a cache line. The caching status of the cache line is stored for each of a plurality of caching agents in the system. An write-on-allocate policy is used for the directory cache by using a special state (e.g., snoop-all state) that indicates one or more snoops are to be broadcasted to all agents in the system. Other embodiments are also disclosed.
申请公布号
WO2012040731(A2)
申请公布日期
2012.03.29
申请号
WO2011US53317
申请日期
2011.09.26
申请人
INTEL CORPORATION;MOGA, ADRIAN C.;MANDVIWALLA, MALCOLM;GEETHA, VEDARAMAN;HUM, HERBERT H.
发明人
MOGA, ADRIAN C.;MANDVIWALLA, MALCOLM;GEETHA, VEDARAMAN;HUM, HERBERT H.