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    • 8. 发明申请
    • SYSTEM AND METHOD FOR ACHIEVING CACHE COHERENCY WITHIN MULTIPROCESSOR COMPUTER SYSTEM
    • 在多处理器计算机系统中实现高速缓存的系统和方法
    • US20090094418A1
    • 2009-04-09
    • US12244700
    • 2008-10-02
    • Craig WARNERGary GostinDan Robinson
    • Craig WARNERGary GostinDan Robinson
    • G06F12/08
    • G06F12/082G06F12/0831G06F12/12G06F2212/1048
    • An embodiment of a multiprocessor computer system comprises main memory, a remote processor capable of accessing the main memory, a remote cache device operative to store accesses by said remote processor to said main memory, and a filter tag cache device associated with the main memory. The filter cache device is operative to store information relating to remote ownership of data in the main memory including ownership by the remote processor. The filter cache device is operative to selectively invalidate filter tag cache entries when space is required in the filter tag cache device for new cache entries. The remote cache device is responsive to events indicating that a cache entry has low value to the remote processor to send a hint to the filter tag cache device. The filter tag cache device is responsive to a hint in selecting a filter tag cache entry to invalidate.
    • 多处理器计算机系统的实施例包括主存储器,能够访问主存储器的远程处理器,可操作以存储所述远程处理器对所述主存储器的访问的远程高速缓存设备以及与主存储器相关联的过滤器标签高速缓存设备。 过滤器高速缓存设备用于存储与主存储器中的数据的远程所有权有关的信息,包括远程处理器的所有权。 过滤器高速缓存设备可操作以在过滤器标签高速缓存设备中为新的高速缓存条目需要空间时,选择性地使过滤器标签高速缓存条目无效。 远程高速缓存设备响应于指示高速缓存条目对于远程处理器具有低值以向该过滤器标签高速缓存设备发送提示的事件。 过滤器标签缓存设备响应于选择过滤器标签高速缓存条目以使其无效的提示。