发明授权
- 专利标题: Managing power consumption in a multi-core processor
- 专利标题(中): 管理多核处理器的功耗
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申请号: US13782492申请日: 2013-03-01
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公开(公告)号: US09075614B2公开(公告)日: 2015-07-07
- 发明人: Eric Fetzer , Reid Riedlinger , Don Soltis , William Bowhill , Satish Shrimali , Krishnakanth Sistla , Efraim Rotem , Rakesh Kumar , Vivek Garg , Alon Naveh , Lokesh Sharma
- 申请人: Intel Corporation
- 申请人地址: US CA Santa Clara
- 专利权人: Intel Corporation
- 当前专利权人: Intel Corporation
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Trop, Pruner & Hu, P.C.
- 优先权: IN773/DEL/2011 20110321
- 主分类号: G06F1/26
- IPC分类号: G06F1/26 ; G06F1/32
摘要:
A processor may include a core and an uncore area. The power consumed by the core area may be controlled by controlling the Cdyn of the processor such that the Cdyn is within an allowable Cdyn 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.
公开/授权文献
- US20130232368A1 MANAGING POWER CONSUMPTION IN A MULTI-CORE PROCESSOR 公开/授权日:2013-09-05
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