Method and apparatus for caching memory content on a computing system to facilitate instant-on resuming from a hibernation state
US7594073B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2006 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | Sep 5, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The memory content may be cached in the non-volatile cache when a computing system is entering S4 state. The non-volatile cache may be coupled to a bus that connects the disk drive with the disk controller. When resuming from S4 state, the memory content may be read from the non-volatile cache rather than from the slow disk drive, which facilitates instant-on resuming for the system. The caching process may be performed in an OS-transparent manner. During the caching process, data with contiguous addresses may be merged into a block of data. A mapping table may be created and stored in the non-volatile cache which includes multiple entries, each for a block of data. The mapping table facilitates data reading from the non-volatile cache to provide instant-on resuming from S4 state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.