Access tracking mechanism for hybrid memories in a unified virtual system
US9830262B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2013 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Jan 31, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/205
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the approaches disclosed herein include a subsystem that includes an access tracking mechanism configured to monitor access operations directed to a first memory and a second memory. The access tracking mechanism detects an access operation generated by a processor for accessing a first memory page residing on the second memory. The access tracking mechanism further determines that the first memory page is included in a first subset of memory pages residing on the second memory. The access tracking mechanism further locates, within a reference vector, a reference bit that corresponds to the first memory page, and sets the reference bit. One advantage of the present invention is that memory pages in a hybrid system migrate as needed to increase overall memory performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.