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Throttling device power

一种设备功率、设备的技术，应用在对设备功率进行节流领域，能够解决没有节流等问题

Active Publication Date: 2017-12-12
INTEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no mechanism for throttling the power usage of Peripheral Component Interface (PCI) devices when demand increases

Method used

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  • Throttling device power
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  • Throttling device power

Examples

Experimental program
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Effect test

example 1

[0054] In an example, a computing device includes a method for throttling device power requirements during a critical power event, the method including: detecting the critical power event; and signaling a system device to defer optional transactions.

example 2

[0056] In another example, a system for controlling power usage includes a power failure detection system, a plurality of peripheral devices, and a control system. The control system is configured to receive a signal indicative of a power failure from the power failure detection system and to send the signal to the plurality of peripheral devices to defer optional transactions.

example 3

[0058] In another example, a system for backward throttling power usage in peripheral devices in a computer system includes a system management engine including a power detection system and an opportunistic buffer flush and fill (OBFF) controller. A signal line couples the OBFF controller to a peripheral device, and a communication bus couples the OBFF controller to a second peripheral device. The module includes code configured to direct a hypervisor engine to detect a power failure and issue OBFF commands to coupled peripherals.

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PUM

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Abstract

An apparatus and system for throttling I / O devices in a computer system is provided. In an example, a method for throttling device power demand during critical power events. The method includes detecting a critical power event and issuing a signal to system devices to defer optional transactions during the critical power event.

Description

technical field [0001] This technique generally involves throttling devices to save power during critical power events. Background technique [0002] A standard system design parameter for computer systems is that loss of power for one cycle of AC power input (eg, approximately 17 milliseconds for a 60 Hertz power supply) will not interrupt system operation. To support this parameter, current power supplies typically have larger capacitors for supplying power to the system when the AC input is too low. Furthermore, the power supply is designed with a certain amount of nominal margin required to handle worst-case load conditions on the system. The load conditions in actual use are much lower, and higher loads exist only for short durations. [0003] Various systems are used to reduce power requirements during critical power events such as under power, thermal excursions, platform power constraints, network power constraints, and the like. However, there is currently no mec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/32
CPCG06F1/30G06F1/3206G06F1/329Y02D10/00
Inventor J·朱斯基R·斯旺森A·库马M·奥里奥W·皮奥特雷维茨
Owner INTEL CORP
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