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Dynamic energy-saving method and device for PCIE equipment and communication system of PCIE equipment

An energy-saving device and equipment technology, applied in energy-saving computing, energy consumption reduction, sustainable communication technology, etc., can solve the problems of low energy-saving efficiency and achieve the effect of improving energy-saving efficiency

Active Publication Date: 2012-09-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual use process, the two energy-saving methods of PCIE equipment entering power management state D and PCIE link entering power management state L are executed separately, and the overall energy-saving efficiency is not high.

Method used

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  • Dynamic energy-saving method and device for PCIE equipment and communication system of PCIE equipment
  • Dynamic energy-saving method and device for PCIE equipment and communication system of PCIE equipment
  • Dynamic energy-saving method and device for PCIE equipment and communication system of PCIE equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Below, the embodiment of the present invention provides detailed definitions on power management (power management, PM) and link active state power management (active-state power management, ASPM), this definition is only exemplary, in actual use Including but not limited to the above definition, those skilled in the art can also obtain the definition of other states obviously according to the description of the embodiments of the present invention. In the example of the present invention, the definition of the power management state D of the PCIE device and the PCIE link power management state L is specifically shown in the following two tables:

[0024]

[0025] Table 1

[0026] Here D0 state and D3 state (D3hot and D3cold) must be supported by all PCIE devices, while D1 state and D2 state are optional states of PCIE devices, depending on whether the hardware supports these two states.

[0027]

[0028] Table 2

[0029] Among them, the PM can control the PCIE ...

Embodiment 2

[0049] It should be noted that the system energy-saving policy can be set in other levels according to needs, such as three levels of "on", "off", and "energy-saving", and can also be set in other forms, which are not limited here.

[0050] Exemplarily, the following specifically describes the process of controlling the PCIE device and link to enter the corresponding linkage energy-saving state in step S3 in this embodiment. The system energy-saving strategy includes: non-energy-saving state G0, light energy-saving state G1, and moderate energy-saving state G2 and high energy-saving state G3. Such as image 3 Shown:

[0051] In step S311, the obtained system energy saving policy is set to the non-energy saving state G0, and all energy saving measures are turned off to control the PCIE device and the link to enter the P0 state.

[0052] In step S321, the obtained system energy saving policy is set to the light energy saving state G1, and the PCIE devices and links not in the ...

Embodiment 3

[0068] Figure 4 The structure of a PCIE device dynamic energy saving device provided by the third embodiment of the present invention is shown, and only the parts related to the embodiment of the present invention are shown for convenience of description.

[0069] A kind of PCIE equipment dynamic energy-saving device, described device comprises:

[0070] A policy setting acquisition unit 102, configured to acquire system energy saving policy settings;

[0071] The energy-saving state control unit 103 is configured to control the PCIE device and link to enter a corresponding linkage energy-saving state through the PCIE energy-saving module according to the obtained system energy-saving policy.

[0072] Further, as a preferred embodiment, the device also includes:

[0073] The module initialization unit 101 is configured to initialize the PCIE energy-saving module.

[0074] Further, as a preferred embodiment, the device also includes:

[0075] The device link restoration un...

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Abstract

The invention is applied to the field of energy-saving control of equipment and provides a dynamic energy-saving method and device for PCIE (Peripheral Component Interconnect Express) equipment and a communication system of the PCIE equipment. The dynamic energy-saving method comprises the following steps: acquiring system energy-saving strategy setting; and controlling the PCIE equipment and a link to enter corresponding linking energy-saving states through a PCIE energy-saving module according to the acquired system energy-saving strategy. According to the dynamic energy-saving method and device disclosed by the invention, the state D of the PCIE equipment and the state L of the link are associated to form a novel linking energy-saving state; and the equipment and the link are controlled to enter corresponding linking energy-saving states according to the preset energy-saving strategy, and thus the energy-saving efficiency can be increased.

Description

technical field [0001] The invention belongs to the field of equipment energy-saving control, and in particular relates to a dynamic energy-saving method and device for PCIE equipment and a communication system thereof. Background technique [0002] In the early 1990s before the PCI (Peripheral Component Interconnect) bus appeared, there were a wide range of IO buses in the PC field during this period, such as VESA local bus, ELSA, and SA bus. PCI first appeared to replace the ISA bus. During this period, 33M The PCI bus completely satisfied the data transmission application at that time. With the rapid increase of processor processing power and memory read and write speed, the PCI bus frequency has also evolved from 33M to 66M PCIE (PCI-Express) bus. PCIE devices are widely used in the IT field, especially PCIE graphics cards have been widely used. The energy saving research of PCIE equipment is one of the current hot topics. [0003] At present, PICE energy-saving techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/32
CPCG06F1/325G06F1/3253Y02D10/00Y02D30/50
Inventor 方庆银邱朝平夏强志
Owner HUAWEI TECH CO LTD
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