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A Multi-VCPU Adaptive Real-time Scheduling Method Oriented to TSN Service

A real-time scheduling and self-adaptive technology, which is applied in the field of network communication, can solve the problems of unable to meet the changing business needs, large-capacity audio and video transmission delay requirements, limited computing power, and low utilization of physical resources, so as to improve resource utilization, The effect of enhancing security and stability and reducing management costs

Active Publication Date: 2020-08-28
XIDIAN UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] To sum up, the problems existing in the existing technology are: the traditional TSN service scheduling has the problem of low usage rate of a single physical resource and limited computing power, which cannot meet the ever-increasing changes in service requirements and the delay requirements of large-capacity audio and video transmission.

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  • A Multi-VCPU Adaptive Real-time Scheduling Method Oriented to TSN Service
  • A Multi-VCPU Adaptive Real-time Scheduling Method Oriented to TSN Service
  • A Multi-VCPU Adaptive Real-time Scheduling Method Oriented to TSN Service

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Embodiment Construction

[0050] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0051] The application principle of the present invention will be described in detail below with reference to the accompanying drawings.

[0052] like figure 1 As shown, the TSN service-oriented multi-VCPU adaptive real-time scheduling method provided by the embodiment of the present invention includes the following steps:

[0053] S101: In the initial stage of algorithm execution, calculate the number of groups α according to the current task utilization δ, and determine the kernel allocation combination according to the number of groups α;

[0054] S102: When the task is transferred to the real-time mode and pa...

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Abstract

The invention belongs to the field of network communication technology and discloses a multi-VCPU adaptive real-time scheduling method for TSN business. According to the method, technical details of physical resources on a bottom layer can be shielded through TSN scheduling combined with a virtualization technology, the physical resources are abstracted into multiple logically-independent virtual resources through the virtualization technology, and a unified programmable interface is provided for an upper layer. Through the method, the business with a high requirement for real-time performance is effectively scheduled, dynamic planning of multi-core processor resources can be realized during running, groups are adjusted adaptively, and the method is beneficial for load balance; according to different conditions of TSN tasks, a scheme with a low task missing ratio is selected, and adaptive scheduling is performed based on a feedback mechanism, so that the fairness and effectiveness of multiprocessor resource distribution are enhanced.

Description

technical field [0001] The invention belongs to the technical field of network communication, and in particular relates to a multi-VCPU self-adaptive real-time scheduling method oriented to TSN services. Background technique [0002] In-vehicle Time Sensitive Network (TSN) is a new type of network for audio and video or multimedia applications. For business application scenarios with high real-time requirements such as audio and video, the time requirement of TSN is higher than that of ordinary asynchronous networks. Today, with the rapid development of the Internet of Things (IoT), TSN has become one of the future development trends of IoT through the Ethernet Audio / Video Bridging technology as the core. However, at present, TSN network nodes only have a single switching function. Facing the ever-increasing service capacity requirements and stricter real-time service constraints, the real-time scheduling of TSN networks faces more severe challenges. [0003] As the infrast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/48G06F9/50
CPCG06F9/4887G06F9/5038G06F9/5077G06F2209/483G06F2209/503
Inventor 姚明旿高晨黄振林罗祥帆高毅龚珊珊
Owner XIDIAN UNIV
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