Prefetching in a virtual memory system based upon repeated accesses across page boundaries
US7873792B2 · kind B2 · utility
8Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2008 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Mar 19, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/654
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method of improved handling of large pages in a virtual memory system. A data memory management unit (DMMU) detects sequential access of a first sub-page and a second sub-page out of a set of sub-pages that comprise a same large page. Then, the DMMU receives a request for the first sub-page and in response to such a request, the DMMU instructs a pre-fetch engine to pre-fetch at least the second sub-page if the number of detected sequential accesses equals or exceeds a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.