The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2026
Filed:
May. 01, 2024
Akeana, Inc., San Jose, CA (US);
Rabin Sugumar, Sunnyvale, CA (US);
Akeana, Inc., Santa Clara, CA (US);
Abstract
Disclosed embodiments provide techniques for prefetching. A processor core that executes instructions out of order (OOO) is accessed. The processor core includes a local cache hierarchy, data prefetch logic, and a prefetch table and is coupled to an external memory system. A first load instruction with a first address is detected and causes a miss in the local cache hierarchy. Information pertaining to the first load instruction is saved in an entry of the prefetch table. The information includes the first address, a confidence count, and an out-of-order mask. A second load instruction with a second address is identified. The information is updated based on the detecting. The information is advanced. The second address is the next sequential address after the first address. The advancing is based on the detecting. One or more data prefetch instructions are issued to the second address plus an offset.