公开(公告)号：US09618996B2

公开(公告)日：2017-04-11

申请号：US14482576

申请日：2014-09-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Byung-Gyu Lee ,  Baik-Song An ,  Sung-Ik Jun

IPC: G06F1/32

CPC classification number: G06F1/3206

Abstract: A power capping apparatus including a measurement unit to measure a performance counter value and a used amount of power of the computing system before a power limit value is set. A calculation unit to calculate an energy reference value used in an energy conservation mode using the used amount of power and the performance counter value. A management unit to compare a first used amount of power measured before a power limit value is set with the power limit value when the power limit value is set, and limit the used amount of power to a value below the power limit value when the first used amount of power is greater than the power limit value, wherein the management unit outputs an error message so that a user sets the power limit value in which the energy reference value is within an effective range in the energy conservation mode.

公开(公告)号：US10180712B2

公开(公告)日：2019-01-15

申请号：US15380621

申请日：2016-12-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Byung-Gyu Lee

IPC: G06F1/32 ,  G06F1/28

Abstract: An apparatus and method for limiting power in a symmetric multiprocessing system. The apparatus for limiting power in a symmetric multiprocessing system includes a power management unit for limiting power consumption of a system to correspond to a power limit value and a power-limiting mode, a QoS profile management unit for managing a QoS profile for each load, which is created using a resource utilization rate and a preset QoS value of the load, and a control unit for assigning the load to a core processor to correspond to the QoS profile for the load if the power-limiting mode is a smart power-limiting mode and if the power consumption is greater than the power limit value.