Method, device and network equipment for quickly restarting operating system

An operating system and restart technology, applied in the field of data communication, can solve the problems of cost, long system abnormal recovery time, slow NandFlash speed, etc., to achieve the effect of reducing the impact time, the time required for restarting, and the abnormal recovery time.

Inactive Publication Date: 2010-04-21
BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the restart process, the CPU runs very fast, but it takes a long time to read the operating system image file from the Flash, especially in the advanced intelligent system, which supports many services, the system image file is large, and the Nand Flash speed is relatively slow. Causes the CPU to spend more time reading the program image, resulting in a longer time for the system to recover from abnormalities

Method used

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  • Method, device and network equipment for quickly restarting operating system
  • Method, device and network equipment for quickly restarting operating system
  • Method, device and network equipment for quickly restarting operating system

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Embodiment Construction

[0049] In view of the problems existing in the prior art, if the processes executed by the CPU can be reduced during the system restart process, especially the time-consuming Flash reading, the time for system abnormality recovery will be greatly reduced.

[0050] During the restart of the operating system, the running of the main program is essential. If the main program can be read and run directly from the memory, then the flash reading, bootloader running time and main program reading during the normal startup process of the operating system can be removed. The loading time and the recovery time of system exceptions can be greatly shortened.

[0051] in such as figure 1 Among the memory segments of the operating system shown, the .code, .text and .bss segments will not be modified during system operation; the system stack and the memory space managed by the operating system are automatically allocated by the operating system.

[0052] When the Bootloader loads the operati...

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PUM

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Abstract

The invention provides a method, a device and network equipment for quickly restarting an operating system. The method comprises the following steps: step S1, storing information of a related memory segment of the operating system in an initial state into a quick recovery memory segment; step S2, when system exception is captured, recovering the related memory segment of the operating system in the initial state according to the stored content of the quick recovery memory segment; and step S3, executing a main program from a main program entrance address by a CPU. The time required for restarting the operating system is greatly shortened, the exception recovery time is greatly reduced, and the time for influencing user services is also greatly reduced.

Description

technical field [0001] The invention relates to a method, device and network equipment for quickly restarting an operating system, and belongs to the technical field of data communication. Background technique [0002] Several concepts involved in the present invention are firstly explained below. [0003] 1. Central Processing Unit (Central Processing Unit, referred to as CPU) [0004] The main function of the central processing unit is to perform arithmetic and logic operations. The internal structure can be divided into several parts such as a control unit, an arithmetic logic unit, and a storage unit. According to the word length of the processed information, it can be divided into: 8-bit processor, 16-bit processor, 32-bit processor and 64-bit processor. [0005] 2. Embedded processor [0006] Embedded processors are CPUs for specific applications. The biggest difference from general-purpose CPUs such as CPUs used in personal computers (PCs) is that most embedded CPU...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445
Inventor 雷林
Owner BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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