Intel Corporation
APPARATUSES, METHODS, AND SYSTEMS FOR DYNAMIC BYPASSING OF LAST LEVEL CACHE

Abstract:

Systems, methods, and apparatuses relating to circuitry to implement dynamic bypassing of last level cache are described. In one embodiment, a hardware processor includes a cache to store a plurality of cache lines of data, a processing element to generate a memory request and mark the memory request with a reuse hint value, and a cache controller circuit to mark a corresponding cache line in the cache as more recently used when the memory request is a read request that is a hit in the cache and the reuse hint value is a first value, and mark the corresponding cache line in the cache as less recently used when the memory request is the read request that is the hit in the cache and the reuse hint value is a second, different value.