A real-time system three-copy separation redundant memory management method, device and medium

Abstract

The application provides a real-time system three-copy separation redundant memory management method, device and medium, and belongs to the technical field of computer memory management. The method comprises the following steps: obtaining address information of a user, initializing a three-copy separation storage area, arranging data items according to block indexes, obtaining arranged three copies, and setting a preset addressing relationship; in response to a memory allocation request, locating a free block index through a bitmap and setting a bit, establishing handle metadata, clearing the three copies and writing magic words; in response to a write request, calculating three-copy addresses according to the addressing relationship, synchronously copying data and writing double-field magic words to obtain a written three-copy area; in response to a read request, positioning the three-copy area to be read by using the preset addressing relationship, checking and calculating a checksum by matching, and obtaining a consistency result by accurate comparison. The application realizes the reliability improvement, performance improvement and operation and maintenance enhancement of three-copy separation redundant memory management.

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