Obtaining power profile information with low overhead
US8949637B2 · kind B2 · utility
11Cited by
3References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 24, 2011 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | May 28, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method includes, upon occurrence of multiple power state transition events for a core of a multi-core processor, reading a value of a system counter of the core and values of low power counters of the core, without expiration of a timer or triggering of an interrupt. These values can be stored in a storage of the processor. Then, after collection is completed, the storage can be accessed to determine a power profile of the processor using the stored values. Other embodiments are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.