| 摘要 |
Embodiments of the present invention provide a system that maintains load-marks on cache lines. The system includes: (1) a cache which accommodates a set of cache lines, wherein each cache line includes metadata for load-marking the cache line, and (2) a local cache controller for the cache. Upon determining that a remote cache controller has made a request for a cache line that would cause the local cache controller to invalidate a copy of the cache line in the cache, the local cache controller determines if there is a load-mark in the metadata for the copy of the cache line. If not, the local cache controller invalidates the copy of the cache line. Otherwise, the local cache controller signals a denial of the invalidation of the cache line and retains the copy of the cache line and the load-mark in the metadata for the copy of the cache line.
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