公开(公告)号：US20080301475A1

公开(公告)日：2008-12-04

申请号：US12191757

申请日：2008-08-14

申请人： WESLEY MICHAEL FELTER ,  Thomas Walter Keller, JR. ,  Karthick Rajamani ,  Cosmin Rusu

发明人： WESLEY MICHAEL FELTER ,  Thomas Walter Keller, JR. ,  Karthick Rajamani ,  Cosmin Rusu

IPC分类号： G06F1/26

CPC分类号： G06F1/3203 ,  G06F1/324 ,  G06F1/3296 ,  Y02D10/126 ,  Y02D10/172 ,  Y02D50/20

摘要： A method for managing power in a data processing system having multiple components includes determining a power budget for the system. Activity levels during a forthcoming time interval are then predicted for each of the components. Using the predicted activity levels, the power budget is allocated among the system components. An activity limit is then established for each component based on its corresponding portion of the power budget. The activity of a component is then monitored and, if the component's activity exceeds the component's corresponding activity limit, constrained. Determining the predicted level of activity may include determining a predicted number of instructions dispatched by a processor component or a predicted number of memory requests serviced for a system memory component. Allocating the power budget includes allocating each component its corresponding standby power and a share of the system power available for dynamic powering based on the expected levels of activity.

摘要翻译： 一种用于在具有多个组件的数据处理系统中管理电力的方法包括确定系统的功率预算。 然后对于每个组件预测在即将到来的时间间隔期间的活动水平。 使用预测的活动级别，在系统组件之间分配功率预算。 然后根据功率预算的相应部分为每个组件建立活动限制。 然后监视组件的活动，如果组件的活动超过组件的相应活动限制，则会受到限制。 确定预测的活动水平可以包括确定由处理器组件分派的指令的预测数量或为系统存储器组件服务的预测数量的存储器请求。 分配功率预算包括基于预期的活动水平来分配每个组件其相应的待机功率和可用于动态供电的系统功率的份额。