Efficient inclusive cache management

• Main Authors: Rayadurgam, Chakrapani, Ambroladze, Ekaterina M, Sonnelitter, III, Robert J, Huynh, Hieu T, Wilson, Chad G, Bronson, Tim, Kohl, Jason D
• Format: Patent
• Language: English
• Published: 26.01.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

Methods and systems for cache management are provided. Aspects include providing a drawer including a plurality of clusters, each of the plurality of clusters including a plurality of processor each having one or more cores, wherein each of the one or more cores shares a first cache memory, providing a second cache memory shared among the plurality of clusters, and receiving a cache line request from one of the one or more cores to the first cache memory, wherein the first cache memory sends a request to a memory controller to retrieve the cache line from a memory, store the cache line in the first cache memory, create a directory state associated with the cache line, and provide the directory state to the second cache memory to create a directory entry for the cache line.