Invention Grant
- Patent Title: Optimizing power consumption by tracking how program runtime performance metrics respond to changes in operating frequency
- Patent Title (中): 通过跟踪程序运行时性能指标如何响应运行频率的变化来优化功耗
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Application No.: US12330284Application Date: 2008-12-08
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Publication No.: US08261112B2Publication Date: 2012-09-04
- Inventor: John B. Carter , Heather L. Hanson , Karthick Rajamani , Freeman L. Rawson, III , Malcolm S. Ware
- Applicant: John B. Carter , Heather L. Hanson , Karthick Rajamani , Freeman L. Rawson, III , Malcolm S. Ware
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Yudell Isidore Ng Russell, PLLC
- Main IPC: G06F1/32
- IPC: G06F1/32 ; G06F1/26 ; G06F1/08
Abstract:
A method, system, and computer program product for optimizing power consumption of an executing processor executing. The method includes determining a first sensitivity relationship (SR) based on a first and a second performance metric value (PMV) measured at a first and second operating frequency (OF), respectively. The first SR predicts workload performance over a range of OFs. A third OF is determined based on the first SR and a specified workload performance floor. A third PMV is measured by executing the processor operating at the third OF. A second SR based on the second and third PMVs is then determined. The first and second SRs are logically combined to generate a third SR. Based on the third SR, a fourth OF is outputted.
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