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1. 发明授权

US07925901B2 Method and system for estimating processor utilization from power measurements 有权
标题翻译：用于从功率测量估计处理器利用率的方法和系统
公开(公告)号：US07925901B2
公开(公告)日：2011-04-12
申请号：US11686418
申请日：2007-03-15
申请人： Wesley M. Felter , Charles R. Lefurgy , Tyler Bletsch
发明人： Wesley M. Felter , Charles R. Lefurgy , Tyler Bletsch
IPC分类号： G06F1/26 , G06F1/32
CPC分类号： G06F1/3203 , G06F1/324 , G06F1/3296 , Y02D10/126 , Y02D10/172
摘要： A method and system for estimating processor utilization from power measurements provides an estimate of processor utilization that can be computed outside of the processor and operating system. Measurements of the processor power consumption are gathered over short intervals in a histogram. The idle power consumption of the processor is determined, and a threshold value higher than the idle power consumption level is computed from the idle power consumption. The number of histogram counts for bins greater than the threshold is normalized to the total number of measurements, providing a fractional value that corresponds to the processor utilization over the measurement interval. The fractional value can then be used in a power management algorithm that adjusts the frequency and optionally the voltage of the processor or group of processors based on their utilization.
摘要翻译：用于从功率测量估计处理器利用率的方法和系统提供可以在处理器和操作系统之外计算的处理器利用率的估计。在直方图中以短时间间隔收集处理器功耗的测量。确定处理器的空闲功耗，并根据空闲功耗计算高于空闲功耗水平的阈值。对于大于阈值的箱体的直方图计数的数量被归一化为测量的总数，提供与测量间隔上的处理器利用率相对应的分数值。然后，分数值可用于功率管理算法，其根据其利用率来调整处理器或处理器组的频率和可选的电压。

2. 发明申请

US20080229127A1 Method and System for Estimating Processor Utilization from Power Measurements 有权
标题翻译：用于从功率测量估计处理器利用率的方法和系统
公开(公告)号：US20080229127A1
公开(公告)日：2008-09-18
申请号：US11686418
申请日：2007-03-15
申请人： Wesley M. Felter , Charles R. Lefurgy , Tyler Bletsch
发明人： Wesley M. Felter , Charles R. Lefurgy , Tyler Bletsch
IPC分类号： G06F1/26 , G06F1/32
CPC分类号： G06F1/3203 , G06F1/324 , G06F1/3296 , Y02D10/126 , Y02D10/172
摘要： A method and system for estimating processor utilization from power measurements provides an estimate of processor utilization that can be computed outside of the processor and operating system. Measurements of the processor power consumption are gathered over short intervals in a histogram. The idle power consumption of the processor is determined, and a threshold value higher than the idle power consumption level is computed from the idle power consumption. The number of histogram counts for bins greater than the threshold is normalized to the total number of measurements, providing a fractional value that corresponds to the processor utilization over the measurement interval. The fractional value can then be used in a power management algorithm that adjusts the frequency and optionally the voltage of the processor or group of processors based on their utilization.
摘要翻译：用于从功率测量估计处理器利用率的方法和系统提供可以在处理器和操作系统之外计算的处理器利用率的估计。在直方图中以短时间间隔收集处理器功耗的测量。确定处理器的空闲功耗，并根据空闲功耗计算高于空闲功耗水平的阈值。对于大于阈值的箱体的直方图计数的数量被归一化为测量的总数，提供与测量间隔上的处理器利用率相对应的分数值。然后，分数值可用于功率管理算法，其根据其利用率来调整处理器或处理器组的频率和可选的电压。

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