TRACKING ALTERNATIVE CACHELINE PLACEMENT LOCATIONS IN A CACHE HIERARCHY

摘要

Data can be stored in a multi-level cache hierarchy memory system by, for example, storing valid data associated with a cacheline in a primary location in a first cache memory location. The first cache memory also stores location information about an alternative location in a second cache memory associated with the cacheline. Space is allocated in the alternative location of the second cache memory to store data associated with the cacheline.

主权项

1. A multi-level cache hierarchy memory system comprising:
a first and second cache memory, each configured to store cachelines, each cacheline having data; and wherein a cacheline's primary location in the first cache memory stores valid data associated with the cacheline; wherein the cacheline's primary location stores locality information about an alternative location in the second cache memory associated with the cacheline; wherein the alternative location has space allocated to store data associated with the cacheline.