Apparatus and method for prefetching access request addresses in an adjacent region of memory
US10866896B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2015 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Oct 18, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/6026
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Prefetch apparatus and a method of prefetching are presented. The prefetch apparatus monitors access requests, each having an access request address, and has request tracking storage to store region entries for regions of memory space which each span multiple access request addresses. The request tracking storage keeps access information for access requests received in their corresponding region entries. When a new region access request is received, which belongs to a new region for which there is no region entry, and when the request tracking storage has an adjacent region entry for which the access information shows that at least a predetermined number of the access request addresses have been accessed, a page mode region prefetching process is initiated for all access request addresses in the new region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.