Transaction scheduling method of heterogeneous distributed real-time system

A technology of distributed real-time and scheduling methods, which is applied in the direction of memory systems, resource allocation, multi-programming devices, etc., can solve the problems of decentralized storage, etc., and achieve the effects of convenient actual operation, good adaptability, and improved response performance

Inactive Publication Date: 2011-10-05
HUAZHONG UNIV OF SCI & TECH
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  • Application Information

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Problems solved by technology

However, in practical applications, with the rapid increase in the amount of data that information systems need to process in real time, the locations are scattered and stored, and the traditional centralized processing system can no longer cope with it. Therefore, the use of distributed parallel processing of real-time transactions has become a development trend.

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  • Transaction scheduling method of heterogeneous distributed real-time system
  • Transaction scheduling method of heterogeneous distributed real-time system
  • Transaction scheduling method of heterogeneous distributed real-time system

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Embodiment Construction

[0037] In order to further explain the present invention in order to achieve the expected purpose and effect of the invention, the method for determining transaction priority based on the heterogeneous distributed real-time system proposed by the present invention will be implemented below in conjunction with the accompanying drawings and detailed implementation steps. The core idea of ​​the present invention is to dynamically determine the priority of the transaction assigned to the node by considering the completion time of the transaction precursor, the status of the node itself, and the time loss of transaction transmission, so as to ensure that the high-priority transaction is prioritized for execution, thereby The real-time performance of global transactions is guaranteed. Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0038] figure 1is a structural diagram of the heterogeneous distributed ...

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Abstract

The invention relates to a transaction priority determination method in the field of heterogeneous distributed parallel processing. The method comprises the following steps of: determining the priority of a global transaction; distributing sub-transactions which are obtained by dividing the global transaction according to physical positions of data relevant to the sub-transactions; dynamically determining the priority of respective parts of local transactions; performing parallel processing on the local transactions; and returning an execution result. The invention provides a flow for dynamically determining the priority of the transaction based on a heterogeneous distributed system, so the real-time property and reliability of the system on processing of the global transaction are guaranteed.

Description

technical field [0001] The invention belongs to the field of distributed parallel processing, and specifically relates to a dynamic transaction scheduling method based on a heterogeneous distributed real-time system. Background technique [0002] The continuous evolution of current IT technology has accelerated the process of information system construction in many traditional industries such as electric power, petroleum, petrochemical, transportation, and logistics. However, in practical applications, with the rapid increase in the amount of data that information systems need to process in real time, the locations are scattered and stored, and the traditional centralized processing system can no longer cope. Therefore, it has become a development trend to use distributed parallel processing of real-time transactions. At the same time, the rapid development of the main frequency and bandwidth of the microprocessor itself and the improvement of the manufacturing process of th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/50G06F9/45
Inventor 王非黄本雄段炼邓磊
Owner HUAZHONG UNIV OF SCI & TECH
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