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

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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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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