Invention Grant
- Patent Title: Managing power consumption in a multi-core processor
- Patent Title (中): 管理多核处理器的功耗
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Application No.: US13422476Application Date: 2012-03-16
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Publication No.: US09069555B2Publication Date: 2015-06-30
- Inventor: Eric Fetzer , Reid J. Reidlinger , Don Soltis , William J. Bowhill , Satish Shrimali , Krishnakanth Sistla , Efraim Rotem , Rakesh Kumar , Vivek Garg , Alon Naveh , Lokesh Sharma
- Applicant: Eric Fetzer , Reid J. Reidlinger , Don Soltis , William J. Bowhill , Satish Shrimali , Krishnakanth Sistla , Efraim Rotem , Rakesh Kumar , Vivek Garg , Alon Naveh , Lokesh Sharma
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Trop, Pruner & Hu, P.C.
- Priority: IN773/DEL/2011 20110321
- Main IPC: G06F1/26
- IPC: G06F1/26 ; G06F1/32

Abstract:
A processor may include a core and an uncore area. The power consumed by the core area may be controlled by controlling the dynamic capacitance of the processor such that the dynamic capacitance is within an allowable dynamic capacitance value irrespective of the application being processed by the core area. The power management technique includes measuring digital activity factor (DAF), monitoring architectural and data activity levels, and controlling power consumption by throttling the instructions based on the activity levels. As a result of throttling the instructions, throttling may be implemented in 3rd droop and thermal design point (TDP). Also, the idle power consumed by the uncore area while the core area is in deep power saving states may be reduced by varying the reference voltage VR and the VP provided to the uncore area. As a result, the idle power consumed by the uncore area may be reduced.
Public/Granted literature
- US20120254643A1 Managing Power Consumption In A Multi-Core Processor Public/Granted day:2012-10-04
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