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:
Nov. 05, 2024
Filed:
Feb. 14, 2023
Qualcomm Incorporated, San Diego, CA (US);
Ramkumar Srinivasan, Saratoga, CA (US);
Gerard Williams, Newport Coast, CA (US);
Varun Palivela, Santa Clara, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
In one aspect, a delta prefetcher disclosed herein bases its predictions on both past memory accesses and predictively prefetched memory accesses. More specifically, the delta prefetcher disclosed herein bases its prediction on both the difference or 'delta' between memory addresses of data previously fetched from memory and the difference or “delta” between addresses of data predictively fetched from memory. The delta prefetcher tracks the delta memory accesses by utilizing two distinctive tables. The fetch table tracks the memory deltas for each memory operation, such as a LOAD or STORE instruction, that the CPU has executed. The delta table predicts the next memory address to prefetch based on the last prefetched memory accesses.