Method and apparatus for controlling operating speed of processor in computer
US6513124B1 · kind B1 · utility
120Cited by
7References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1999 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | May 14, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The number of executed instructions (Iu) in a user mode as one of performance indexes of a computer, and the total number of executed instructions (It) as one of power consumption indexes are used. These parameters have a relationship of E−It/Iu with energy index E. An operating speed (operating frequency) of CPU is increased or decreased so that a value of the performance index may be increased within a range of the power consumption index specified by a user, or a value of the energy index E may be decreased. By doing so, power management processing may be performed, which balances the power saving with the performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.