US 12,189,953 B2
Speculative dram request enabling and disabling
Jagadish B. Kotra, Austin, TX (US); and John Kalamatianos, Boxborough, MA (US)
Assigned to Advanced Micro Devices, Inc.
Filed by Advanced Micro Devices, Inc., Santa Clara, CA (US)
Filed on Sep. 29, 2022, as Appl. No. 17/956,417.
Prior Publication US 2024/0111420 A1, Apr. 4, 2024
Int. Cl. G06F 12/00 (2006.01); G06F 3/06 (2006.01)
CPC G06F 3/0611 (2013.01) [G06F 3/0653 (2013.01); G06F 3/0673 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for retrieving information based on cache miss prediction, the method comprising:
predicting, based on a history of cache misses at a private cache, that a cache lookup for the information will miss a shared cache;
executing a speculative memory request based on the prediction that the cache lookup for the information will miss the shared cache; and
fetching the information based on the speculative memory request.