SYSTEM AND METHOD FOR DETERMINING CACHE ACTIVITY AND OPTIMIZING CACHE RECLAMATION

• Main Authors: ARORA, Pankaj, KÖNIG, Arnd Christian, OSLAKE, John M, LIU, Jiaqi, DONG, Junfeng, XU, Shize, SYAMALA, Manoj A, LI, Changsong, KALHAN, Ajay, NARASAYYA, Vivek R
• Format: Patent
• Language: English
• Published: 10.03.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

Methods for determining cache activity and for optimizing cache reclamation are performed by systems and devices. A cache entry access is determined at an access time, and a data object of the cache entry for a current time window is identified that includes a time stamp for a previous access and a counter index. A conditional counter operation is then performed on the counter associated with the index to increment the counter when the time stamp is outside the time window or to maintain the counter when the time stamp is within the time window. A counter index that identifies another counter for a previous time window where the other counter value was incremented for the previous cache entry access causes the other counter to be decremented. A cache configuration command to reclaim, or additionally allocate space to, the cache is generated based on the values of the counters.