ALLOCATION AND WRITE POLICY FOR A GLUELESS AREA-EFFICIENT DIRECTORY CACHE FOR HOTLY CONTESTED CACHE LINES
    1.
    发明申请
    ALLOCATION AND WRITE POLICY FOR A GLUELESS AREA-EFFICIENT DIRECTORY CACHE FOR HOTLY CONTESTED CACHE LINES 有权
    用于高速缓存高速缓存线路的无障碍区域高效目录的分配和写入策略

    公开(公告)号:US20120079214A1

    公开(公告)日:2012-03-29

    申请号:US12890649

    申请日:2010-09-25

    IPC分类号: G06F12/08 G06F12/00

    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.

    摘要翻译: 描述与用于热挑战的高速缓存行的无胶带区域高效目录高速缓存的分配和/​​或写入策略有关的方法和装置。 在一个实施例中,目录高速缓存存储与高速缓存行的高速缓存状态对应的数据。 为系统中的多个缓存代理中的每一个存储缓存行的高速缓存状态。 通过使用指示要广播到系统中的所有代理的一个或多个窥探的特殊状态(例如,窥探全状态),对目录高速缓存使用写入分配策略。 还公开了其他实施例。