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    Runtime power table index adjustment for performance and power management
    1.
    发明授权
    Runtime power table index adjustment for performance and power management 有权

    公开(公告)号：US10921876B2

    公开(公告)日：2021-02-16

    申请号：US15963307

    申请日：2018-04-26

    Applicant: MediaTek Inc.

    Inventor： Jih-Ming Hsu ,  Tai-Hua Lu ,  Pei-Yu Huang ,  Chien-Yuan Lai ,  Shu-Hsuan Chou ,  I-Cheng Cheng ,  Yun-Ching Li ,  Ming Hsien Lee

    IPC: G06F1/329 ,  G06F1/3203 ,  G06F1/3209 ,  G06F1/3206

    Abstract: Power and performance of a multi-core system is managed dynamically by adjusting power table indices at runtime. Runtime statistics is measured, when an application is executed on a first core of a first type at a first operating point (OPP) in a first time period, and on a second core of a second core type at a second OPP in a second time period. A controller estimates, based on the runtime statistics, a first pair of indices associated with a first OPP for the first core and a second pair of indices associated with a second OPP for the second core. During runtime, the controller incorporates the first pair of indices and the second pair of indices into power table indices; and determines, from the power table indices, selected indices associated with a selected OPP of a core of a selected core type for executing the application.

    RUNTIME POWER TABLE INDEX ADJUSTMENT FOR PERFORMANCE AND POWER MANAGEMENT
    3.
    发明申请
    RUNTIME POWER TABLE INDEX ADJUSTMENT FOR PERFORMANCE AND POWER MANAGEMENT 审中-公开

    公开(公告)号：US20190332157A1

    公开(公告)日：2019-10-31

    申请号：US15963307

    申请日：2018-04-26

    Applicant: MediaTek Inc.

    Inventor： Jih-Ming Hsu ,  Tai-Hua Lu ,  Pei-Yu Huang ,  Chien-Yuan Lai ,  Shu-Hsuan Chou ,  I-Cheng Cheng ,  Yun-Ching Li ,  Ming Hsien Lee

    IPC: G06F1/32

    Abstract: Power and performance of a multi-core system is managed dynamically by adjusting power table indices at runtime. Runtime statistics is measured, when an application is executed on a first core of a first type at a first operating point (OPP) in a first time period, and on a second core of a second core type at a second OPP in a second time period. A controller estimates, based on the runtime statistics, a first pair of indices associated with a first OPP for the first core and a second pair of indices associated with a second OPP for the second core. During runtime, the controller incorporates the first pair of indices and the second pair of indices into power table indices; and determines, from the power table indices, selected indices associated with a selected OPP of a core of a selected core type for executing the application.

    Adaptive Thermal Slope Control
    9.
    发明申请
    Adaptive Thermal Slope Control 审中-公开
    自适应热斜率控制

    公开(公告)号：US20170068261A1

    公开(公告)日：2017-03-09

    申请号：US15257022

    申请日：2016-09-06

    Applicant: MEDIATEK INC.

    Inventor： Jih-Ming Hsu ,  Wei-Ting Wang ,  Tai-Yu Chen ,  Wen-Tsan Hsieh ,  Hong-Jie Huang ,  Pei-Yu Huang ,  Ming-Hsien Lee

    IPC: G05D23/19 ,  G05B13/04

    CPC classification number: G05D23/1917 ,  G06F1/206

    Abstract: Methods and apparatus are provided for adaptive thermal slope control for dynamic thermal management. In one novel aspect, the device monitors and obtains sampling temperatures, calculates a thermal-slope index, determines whether the calculated thermal-slope index is greater than a predefined slope threshold, adjusts a power budget based on a thermal-slope algorithm, and applies the dynamic thermal management (DTM) adaptively based on the adjusted power budget. In one embodiment, fixed slope algorithm is used. The power budget is adjusted such that an adjusted slope of temperatures stays at a constant. In another embodiment, the time prediction algorithm is used. The power budget is adjusted such that a predicted time to reach a predefined thermal threshold stays a constant. In one embodiment, the time-prediction algorithm is a time-to-target-point (T2TP) algorithm. The T2TP is obtained using a linear equation or a LOG equation.

    Abstract translation: 提供了用于动态热管理的自适应热边坡控制的方法和装置。 在一个新颖的方面，设备监测和获取采样温度，计算热斜率指数，确定计算的热斜率指数是否大于预定义的斜率阈值，基于热斜率算法调整功率预算，并应用 基于调整后的功率预算自动进行动态热管理（DTM）。 在一个实施例中，使用固定斜率算法。 调整功率预算，使得调整的温度斜率保持恒定。 在另一个实施例中，使用时间预测算法。 调整功率预算，使得达到预定义热阈值的预测时间保持不变。 在一个实施例中，时间预测算法是时间到目标点（T2TP）算法。 使用线性方程或LOG方程获得T2TP。

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