Virtual-CPU based frequency and voltage scaling
US8364997B2 · kind B2 · utility
18Cited by
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20Claims
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Key dates
| Filing date | Dec 22, 2009 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Jan 26, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Frequency and voltage scaling are performed for each virtual processor in a virtual environment. The characteristics of the workload performed by each virtual processor are dynamically profiled and a scaling algorithm determines a scale factor for that virtual processor as a function of the profiled characteristics. The profiled characteristics may include virtualization events associated with the workload being performed. In addition, a particular scaling algorithm and profiling technique may be selected based on which virtual processor is currently running.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.