Pruning of low power state information for a processor
US9746908B2 · kind B2 · utility
0Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2015 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Jul 9, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A processor prunes state information based on information provided by software, thereby reducing the amount of state information to be stored prior to the processor entering a low-power state. The software, such as an operating system or application program executing at the processor, indicates one or more registers of the processor as storing data that is no longer useful. When preparing to enter the low-power state, the processor omits the indicated registers from the state information stored to memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.