公开(公告)号：WO2009156447A3

公开(公告)日：2010-04-22

申请号：PCT/EP2009057910

申请日：2009-06-24

Applicant: IBM ,  IBM UK ,  BREY THOMAS ,  FELTER WESLEY ,  KOCHAR SUMEET ,  LEFURGY CHARLES ,  ORITA RYUJI ,  RAWSON FREEMAN III ,  WARE MALCOLM

Inventor： BREY THOMAS ,  FELTER WESLEY ,  KOCHAR SUMEET ,  LEFURGY CHARLES ,  ORITA RYUJI ,  RAWSON FREEMAN III ,  WARE MALCOLM

IPC: G06F1/20

CPC classification number: G06F1/3203 ,  G06F1/206 ,  Y02D10/16

Abstract: Methods and products for managing power consumption of a computer and computers for which power consumption is managed. The computer includes the computer including a computer processor and embodiments of the present invention include providing, by an inband power manger to an out-of-band power manager, a proposed performance state ('p-state') for the computer processor; determining, by the out-of-band power manager, in dependence upon a power setpoint and currently-measured operating metrics of the computer processor, whether to approve the proposed p-state; and if the out-of-band power manager approves the proposed p-state, setting operating parameters of the computer processor according to the approved p-state.

Abstract translation: 用于管理计算机和功耗管理的计算机的功耗的方法和产品。 计算机包括包括计算机处理器的计算机，并且本发明的实施例包括通过带外功率管理器向带外功率管理器提供用于计算机处理器的建议的性能状态（“p状态”）。 由带外功率管理器根据功率设定点和计算机处理器的当前测量的操作度量来确定是否批准所提出的p状态; 并且如果带外功率管理器批准所提出的p状态，则根据批准的p状态来设置计算机处理器的操作参数。

公开(公告)号：DE602008006052D1

公开(公告)日：2011-05-19

申请号：DE602008006052

申请日：2008-02-13

Applicant: IBM

Inventor： FELTER WESLEY ,  LEFURGY CHARLES ROBERT ,  BLETSCH TYLER

IPC: G06F1/32

公开(公告)号：AT504877T

公开(公告)日：2011-04-15

申请号：AT08716827

申请日：2008-02-13

Applicant: IBM

Inventor： FELTER WESLEY ,  LEFURGY CHARLES ,  BLETSCH TYLER

IPC: G06F1/32

Abstract: 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.