Data management method, device and system, storage medium and electronic equipment

Abstract

The invention relates to a data management method and device, a storage medium and electronic equipment. The method includes: the storage engine of a database maps the database file of the database tothe mapping space area of a database process virtual address space in advance, the mapping space comprises dynamic blocks, the free internal memory fragments of part of or all of the dynamic blocks exist in two or more than two linked list in a linked list element manner, different linked lists are used for storing the free internal memory fragments of different internal memory sizes, the linkedlists form indexes through arrays, the storage engine responds to a received allocation request for allocating the free internal memory to search for the linked list elements with the free internal memory fragment sizes capable of satisfying the allocation request in the two or more than two linked lists according to the indexes formed by the arrays; the free internal memory fragments corresponding to the searched linked list elements are allocated to the allocation request, and deleting the linked list elements from the linked lists where the lined list elements are located. By the data management method, a large amount of small data can be fast processed in a non-volatile manner.

Description

technical field [0001] The present disclosure relates to the field of computers, and in particular, to a data management method, device, storage medium and electronic equipment. Background technique [0002] In the prior art, in order not to lose data in the database, a file system of a hardware storage such as a mechanical hard disk or a solid state disk is usually used to store database files of the database. Due to the complex hierarchical structure of the file system of this hardware storage, the database only manages the organization of data, for example, establishing the relationship between data tables, the relationship between rows and columns in the table, etc., while the data in the file system of this hardware storage The storage mechanism, such as the allocation of storage space, is done internally by the operating system. Limited to this kind of file system with complex hardware memory hierarchy, the supporting data management storage mechanism in the operating...

AI Technical Summary

Problems solved by technology

Limited to this kind of file system with complex hardware memory hierarchy structure, the supporting data management storage mechanism in the operating system is only good at processing large continuous data

[0003] However, in some systems, such as automotive electronic and electrical systems, there are a large amount of random small data, most of which are byte-level small data of several bytes in size, and access to these data is discontinuous and disorderly

However, the storage mechanism of the existing data management method is only good at processing large blocks of continuous data, and the speed of byte-level data and random data is significantly slower, resulting in the inability to quickly process a large number of random small data

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