公开(公告)号：US09507405B2

公开(公告)日：2016-11-29

申请号：US14308079

申请日：2014-06-18

Applicant: Oracle International Corporation

Inventor： Venkatram Krishnaswamy ,  Georgios K Konstadinidis ,  Sebastian Turullols ,  Yifan YangGong

IPC: G06F1/32

CPC classification number: G06F1/324 ,  G06F1/3243 ,  Y02D10/126 ,  Y02D10/152

Abstract: A system includes a power management unit that may monitor the power consumed by a processor including a plurality of processor core. The power management unit may throttle or reduce the operating frequency of the processor cores by applying a number of throttle events in response to determining that the plurality of cores is operating above a predetermined power threshold during a given monitoring cycle. The number of throttle events may be based upon a relative priority of each of the plurality of processor cores to one another and an amount that the processor is operating above the predetermined power threshold. The number of throttle events may correspond to a portion of a total number of throttle events, and which may be dynamically determined during operation based upon a proportionality constant and the difference between the total power consumed by the processor and a predetermined power threshold.

Abstract translation: 一种系统包括能够监视包括多个处理器核心的处理器消耗的功率的电力管理单元。 电源管理单元可以通过施加多个节气门事件来响应于在给定的监视循环期间确定多个核在高于预定功率阈值的情况下运行，来节流或降低处理器核心的工作频率。 油门事件的数量可以基于多个处理器核心中的每一个相对于彼此的相对优先级，以及处理器在高于预定功率阈值的情况下操作的量。 节气门事件的数量可以对应于节气门事件总数的一部分，并且其可以在操作期间基于比例常数和处理器消耗的总功率与预定功率阈值之间的差异来动态地确定。