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Wear leveling method and system for index nodes of nonvolatile memory file system

A memory file system and index node technology, which is applied in the field of wear leveling of index nodes in non-volatile memory file systems, can solve the problems of reducing the service life of non-volatile memory file systems and unbalanced wear of index node areas, etc., to achieve extended use The effect of life and wear rate balance

Active Publication Date: 2020-08-28
CHONGQING UNIV
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Problems solved by technology

[0005] Aiming at the defects in the prior art, the present invention provides a wear leveling method of the index node of the non-volatile memory file system, aiming at solving the unbalanced wear of the index node area of ​​the non-volatile memory file system in the prior art, reducing Extends the useful life of non-volatile memory file system devices

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  • Wear leveling method and system for index nodes of nonvolatile memory file system

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[0055] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, and therefore are only examples, and cannot be used to limit the protection scope of the present invention.

[0056] figure 1 It shows the implementation flow chart of the wear leveling method of the index node of the non-volatile memory file system provided by the present invention, and the method includes the following steps:

[0057] In step S101, the inode in the non-volatile memory file system and the number of writes of the storage unit, physical page and storage domain where the inode is located are respectively counted;

[0058] In step S102, it is judged whether the write times K of the inode in the non-volatile memory file system is greater than or equal to the preset write times threshold, if yes, execute...

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Abstract

The invention relates to the technical field of storage equipment. The invention provides a wear leveling method for index nodes of a nonvolatile memory file system. The method comprises the followingsteps: an index node in a nonvolatile memory file system and writing times of a storage unit, a physical page and a storage domain where the index node is located are counted and judged; the index node in the nonvolatile memory file system is transferred to a new storage position according to the judgment and execution of the inter-domain wear balancing algorithm or the intra-domain wear balancing algorithm, so that a wear balancing mechanism is realized on the software level of the file system, namely the system, wear rate balancing between storage units is realized, and the service life ofequipment is prolonged.

Description

technical field [0001] The invention belongs to the technical field of storage devices, and in particular relates to a wear leveling method and system for an index node of a non-volatile memory file system. Background technique [0002] In the context of the era of big data, with the continuous accumulation of data and the iterative update of technology, a large number of new technical means have been gradually proposed and widely used to meet the special needs of users and continuously improve user experience, such as personalized recommendation, Autonomous driving, virtual reality, etc. A common feature of these application scenarios is that users are highly sensitive to response delays, which requires that the above-mentioned applications must ensure a sufficiently low application response delay during use. On the contrary, the existing complex algorithms such as machine learning and image recognition take a long time to run, which cannot meet the delay requirements of u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/02G06F16/13
CPCG06F12/0246G06F16/13Y02D10/00
Inventor 陈咸彰王鑫鑫沙行勉杨朝树诸葛晴凤
Owner CHONGQING UNIV