High-efficiency file access method for embedded network file system server side

Abstract

The invention relates to a high-efficiency file access method for a server side of an embedded network file system, which remarkably reduces the consumption of running resources by a server by dynamically monitoring the timeout state of the client side and timely releasing the resources while ensuring that file indexing and management are quicker and more efficient. effectively improves the file access efficiency of the server side, and overcomes the defects that a traditional file system is slow in data request response, low in concurrent access efficiency and high in processing resource occupation under an embedded architecture. According to the server quick indexing and dynamic management method disclosed by the invention, file indexing, file reading and writing and mounting node management are optimally designed.

Description

technical field [0001] The invention belongs to the field of electronic technology, and relates to a high-efficiency file access method at the server side of an embedded network file system. Background technique [0002] In commonly used network systems, access to remote storage device nodes is usually implemented in a traditional Network File System (NFS) manner. The network file system uses the client / server architecture, uses the remote procedure call RPC mechanism, maps the remote storage medium to the client's local storage device, realizes the client's access to the server's file through the network, and realizes the network system. File sharing and unified management and maintenance. [0003] Traditional network file systems are widely oriented to general-purpose application platforms. Usually, server-side processing resources and cache resources are sufficient, and there is no clear requirement for real-time file retrieval and access. In the embedded system, the tr...

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Problems solved by technology

[0004] 1. The server's response speed to data requests is slow: limited by the file retrieval method on the server side and the organization and management method of the mounted nodes, it takes a lot of time for the server program to respond to client requests and index target files;

[0005] 2. Low processing efficiency when multiple nodes access concurrently: When multiple client nodes access a file at the same time under the network file system, the organizational structure of the client service program determines that its cache pool is too large, resulting in low indexing efficiency, and its file The unique access management mode makes the processing stability of concurrent access poor;

[0006] 3. High processor resource usage: The processor resources in embedded systems are often relatively limited, and the network file system service does not monitor and manage the mounted nodes and occupied resources. Therefore, the mounted client nodes When the dynamic changes are frequent, it will take up a lot of processor and cache resources, increasing the load on the processor

[0007] The above shortcomings are that the traditional network file system server cannot meet the high real-time requirements of embedded systems, and it is necessary to design an efficient method for fast indexing and dynamic management of server-side files to improve the service performance of the entire network file system

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