A data recovery method based on multi-core network processor system

Abstract

The invention discloses a data recovery method based on a multi-core network processor system. The memory of the multi-core network processor is shared by multiple cores, wherein A core runs a memory management and control program, and other cores run application programs. The method Including: Step 1) When the memory management and control program on the A core crashes, the user softly restarts the memory management and control program; Step 2) The memory management and control program reads the configuration file in the specified format and relocates the information in the memory area and the starting position of the data area, and detect the memory information area and data area; step 3) the memory management and control program selects system initialization or data recovery according to the content of the configuration file and the content of the memory information area; step 4) if other cores The applications on the core run normally without restarting; otherwise, the applications on other cores are softly restarted. The method of the invention can solve the problem of data loss caused by program crash on the multi-core network processor.

Description

Technical field [0001] The present invention relates to a memory management method of a multi-core processor, and more particularly to a data recovery method based on a multi-core processor system. Background technique [0002] In the end of the last century, the network processor began to rise, and it has quickly grown into a priority option for network processing equipment. The emergence of multi-core technologies, giving a huge challenge to many aspects such as software system structure, software model, operating system, and nuclear communication technology, and also driven the revolution of the software. The multi-core network processor is gradually replacing the traditional single processor to become the mainstream of the market with its high performance and low power advantages. [0003] Programs running on the multi-core network processor, because system software can run a variety of faults, causing the program to crash. Data often lost after the program crashes, which wil...

AI Technical Summary

Problems solved by technology

However, the existing memory data recovery methods are all aimed at stand-alone systems, and do not involve memory management and the situation that the control program and the application program are located on different cores.

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