A data caching method and system based on a high-performance storage medium

Abstract

The invention discloses a data caching method based on a high-performance storage medium. The method comprises the steps of obtaining cache data, and at the same time, storing the cache data to a memory cache queue and the high-performance storage medium; building a mapping bitmap between the cache data stored in the memory cache queue and the cache data stored in the high-performance storage medium; according to the mapping bitmap, carrying out data caching processing. Because the high-performance storage memory is high in the read-write speed and has performance such as power-down protection, the memory cache and the high-performance storage medium are combined together, the cache data is cached to the memory cache queue and the high-performance storage medium at the same time, by building a mapping bitmap between the data of the memory cache queue and the data of the high-performance storage medium, caching processing is conducted on the data, not only is a memory caching space expanded, but also the caching speed is increased, and the data completeness is ensured. The invention further discloses a data caching system based on the high-performance storage medium. The data caching system based on the high-performance storage medium has the effects.

Description

technical field [0001] The present invention relates to the technical field of caching, in particular to a data caching method based on a high-performance storage medium, and also to a data caching system based on a high-performance storage medium. Background technique [0002] The caching technology is to solve the speed bottleneck caused by the difference in processing speed between two interactive processing units. In the Linux system, when reading and writing files, the kernel will cache the files in the memory in order to improve the performance and speed of reading and writing. This part of the memory is Cache Memory (cache memory). The automatic release causes the available physical memory to be greatly reduced after the program frequently reads and writes files in the Linux system. As a result, there are technical problems in CacheMemory, that is, when continuously reading and writing data, the cache space is limited, resulting in a decrease in cache speed, and ther...

AI Technical Summary

Problems solved by technology

As a result, there are technical problems in CacheMemory, that is, when continuously reading and writing data, the cache space is limited, resulting in a decrease in cache speed, and there is no power-off protection, which may easily lead to data inconsistencies and data loss when flashing to the physical disk.

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