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Embedded system and dormancy and wake-up method of application process thereof

An embedded system and application process technology, applied in multi-programming devices, program startup/switching and other directions, can solve the problems of slow system running speed, poor timeliness, and heavy loading workload, and achieve flexible wake-up management and fast sleep. The effect of waking up, reducing the workload of data backup and recovery

Active Publication Date: 2012-11-14
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0017] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a dormancy and wake-up method for an embedded system and its application process, which is used to solve the problem of excessive data backup during the dormancy process of the embedded system process in the prior art. Causes memory waste, relatively large loading workload when waking up the process, slow system running speed, and poor timeliness

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Embodiment Construction

[0090] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0091] see Figure 1 to Figure 4 . It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arb...

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Abstract

The invention provides an embedded system and a dormancy and wake-up method of an application process thereof. The embedded system uses a traditional nonvolatile main storage and a dynamic random access memory (DRAM) internal storage to form a storage framework, the nonvolatile main storage is composed of a boot program storage area, a core storage area, a file system storage area and a progress mirror image backup area, wherein the progress mirror image backup area is divided into a mirror image indexing area and a mirror image data storage area, and can hang application processes in a nonvolatile storage. The embedded system and the dormancy and wake-up method can achieve system-level and single-process dormancy, enable process dormancy and wake-up management to be flexible and convenient, can reduce work load of data backup and recovery of dormancy and wake-up of the traditional embedded system and a large amount of storage spaces occupied by data backup in system dormancy, and accordingly improve operating efficiency of the embedded system.

Description

technical field [0001] The invention relates to the technical field of an embedded system, in particular to a dormancy and wake-up method of an embedded system and an application process thereof. Background technique [0002] A process is a very important concept in an operating system. In a hierarchical operating system, a process is the basic unit for resource allocation by the system, and it is also the basic unit for process CPU scheduling under multitasking. A process is the running process of a program on a data set, and is the basic unit for resource allocation and scheduling of the system. If the processor wants to identify and manage the process, it needs to have a physical entity that describes the existence of the process and can reflect changes. That is, a static description of the process. The static description of the process consists of three parts, PCB (process control block), program segment and data structure set. The PCB contains process description info...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/48
Inventor 陈小刚李顺芬王玉婵陈一峰许林海丁晟陈后鹏宋志棠
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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