The disclosed embodiments may relate to cache memory systems. A multiprocessor
computer system may include multiple processors and caches that may be organized
in a hierarchical configuration. The caches may be organized into lines and include
data and cache tags. Due to the limitations in the system architecture, the lower
level caches may be limited in size, which may not be able to maintain the inclusion
property. By including the unbalanced inclusion caches tags, a request for data
within list from other components, such as other processors, may be handled without
interacting with the upper level caches.