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    • 1. 发明授权
    • Method for autonomous dynamic voltage and frequency scaling of microprocessors
    • 微处理器自主动态电压和频率缩放的方法
    • US07840825B2
    • 2010-11-23
    • US11838331
    • 2007-08-14
    • Peter AltevogtHans BoettigerWesley M. FelterCharles R. LefurgyLutz StiegeMalcolm S. Ware
    • Peter AltevogtHans BoettigerWesley M. FelterCharles R. LefurgyLutz StiegeMalcolm S. Ware
    • G06F1/32
    • G06F1/3203G06F1/324G06F1/3296Y02D10/126Y02D10/172
    • A method for autonomous dynamic voltage (v) and frequency (f) scaling (DVFS) of a microprocessor, wherein autonomous detection of phases of high microprocessor workload and prediction of their duration is performed (PID). The microprocessor frequency (f) will be temporarily increased (LUT) to an appropriate safe value (even beyond its nominal frequency) consistent with technological and ambient constraints in order to improve performance when the computer system comprising the microprocessor benefits most, while during phases of low microprocessor workload its frequency (f) and voltage (v) will be decreased to save energy. This technique exploits hidden performance capabilities and improves the total performance of a computer system without compromising operational stability. No additional hardware such as service processors is needed for contemporary computer systems supporting performance counters and DFVS already. The invention allows significantly increasing the total computer system performance with only minimal impact on power (PMAX, PACTUAL) consumption.
    • 一种用于微处理器的自主动态电压(v)和频率(f)缩放(DVFS)的方法,其中执行高微处理器工作负载的相位的自主检测及其持续时间的预测(PID)。 微处理器频率(f)将临时增加(LUT)到与技术和环境约束一致的适当安全值(甚至超过其标称频率),以便当包括微处理器的计算机系统受益最大时,提高性能,同时在 低微处理器工作负载,其频率(f)和电压(v)将降低以节省能源。 该技术利用隐藏的性能功能,并提高计算机系统的总体性能,而不会影响操作稳定性。 不需要支持性能计数器和DFVS的现代计算机系统等附加硬件,如服务处理器。 本发明允许显着地增加总计算机系统性能,而对功率(PMAX,PACTUAL)消耗的影响最小。
    • 2. 发明申请
    • Method for Autonomous Dynamic Voltage and Frequency Scaling of Microprocessors
    • 微处理器的自动动态电压和频率调节方法
    • US20080098254A1
    • 2008-04-24
    • US11838331
    • 2007-08-14
    • Peter AltevogtHans BoettigerWesley M. FelterCharles R. LefurgyLutz StiegeMalcolm S. Ware
    • Peter AltevogtHans BoettigerWesley M. FelterCharles R. LefurgyLutz StiegeMalcolm S. Ware
    • G06F1/08
    • G06F1/3203G06F1/324G06F1/3296Y02D10/126Y02D10/172
    • A method for autonomous dynamic voltage (v) and frequency (f) scaling (DVFS) of a microprocessor, wherein autonomous detection of phases of high microprocessor workload and prediction of their duration is performed (PID). The microprocessor frequency (f) will be temporarily increased (LUT) to an appropriate safe value (even beyond its nominal frequency) consistent with technological and ambient constraints in order to improve performance when the computer system comprising the microprocessor benefits most, while during phases of low microprocessor workload its frequency (f) and voltage (v) will be decreased to save energy. This technique exploits hidden performance capabilities and improves the total performance of a computer system without compromising operational stability. No additional hardware such as service processors is needed for contemporary computer systems supporting performance counters and DFVS already. The invention allows significantly increasing the total computer system performance with only minimal impact on power (PMAX, PACTUAL) consumption.
    • 一种用于微处理器的自主动态电压(v)和频率(f)缩放(DVFS)的方法,其中执行高微处理器工作负载的相位的自主检测及其持续时间的预测(PID)。 微处理器频率(f)将临时增加(LUT)到与技术和环境约束一致的适当的安全值(甚至超过其标称频率),以便当包括微处理器的计算机系统受益最大时,提高性能,同时在 低微处理器工作负载,其频率(f)和电压(v)将降低以节省能源。 该技术利用隐藏的性能功能,并提高计算机系统的总体性能,而不会影响操作稳定性。 不需要支持性能计数器和DFVS的现代计算机系统等附加硬件,如服务处理器。 本发明允许显着地增加总计算机系统的性能,而对功率(P MAX),功耗(P <