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首页> 外国专利> System and method for determining a power estimate for an I/O controller based on monitored activity levels and adjusting power limit of processing units by comparing the power estimate with an assigned power limit for the I/O controller

System and method for determining a power estimate for an I/O controller based on monitored activity levels and adjusting power limit of processing units by comparing the power estimate with an assigned power limit for the I/O controller

机译：用于基于监视的活动级别确定I / O控制器的功率估计并通过将功率估计与为I / O控制器分配的功率极限进行比较来调整处理单元的功率极限的系统和方法

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摘要

A system and method for efficient management of operating modes within an IC for optimal power and performance targets. On a same die, an SOC includes one or more processing units and a input/output (I/O) controller (IOC). The multiple interfaces within the IOC manage packets and messages according multiple different protocols. The IOC maintains an activity level for each one of the multiple interfaces. This activity level may be based at least on a respective number of transactions executed by a corresponding one of the multiple interfaces. The IOC determines a power estimate for itself based on at least the activity levels. In response to detecting a difference between the power estimate and an assigned I/O power limit for the IOC, a power manager adjusts at least respective power limits for the one or more processing units based on at least the difference.
机译：一种用于高效管理IC中的工作模式以实现最佳功率和性能目标的系统和方法。在同一芯片上，SOC包括一个或多个处理单元和一个输入/输出（I / O）控制器（IOC）。 IOC中的多个接口根据多种不同的协议管理数据包和消息。 IOC为多个接口中的每个接口维护一个活动级别。该活动级别可以至少基于由多个接口中的相应一个接口执行的交易的相应数量。 IOC至少基于活动级别来确定其自身的功率估计。响应于检测到功率估计和为IOC分配的I / O功率极限之间的差异，功率管理器至少基于该差异来调节一个或多个处理单元的至少相应的功率极限。

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