Cache read-write method and device and electronic equipment

Abstract

The invention relates to the technical field of storage, in particular to a cache read-write method and device and electronic equipment, and the method comprises the steps: obtaining a data read-writerequest and the processing states of all levels of caches, wherein the processing states comprise the queue depth and IO time delay; and determining a target cache corresponding to the data read-write request according to the processing state of each level of cache so as to carry out corresponding read-write operation on the target cache. According to the cache read-write method, after the data read-write request is obtained, the target cache is determined by utilizing the processing state of each level of cache, so that data read-write is prevented from being carried out from the same cachecompletely, the performance of each level of cache can be utilized to the maximum extent, and the read-write efficiency of the cache is improved.

Description

technical field [0001] The invention relates to the field of storage technology, in particular to a cache read-write method, device and electronic equipment. Background technique [0002] Cache is the cache area for data exchange (called Cache). This concept originally came from memory and CPU. When a piece of hardware wants to read data, it will first look for the required data from the cache, if it finds it, it will execute it directly, if it cannot find it, it will find it from the memory. Since the cache runs much faster than the memory, the job of the cache is to help the hardware run faster. [0003] in, figure 1 The principle of caching read data commonly used in the prior art is shown. Such as figure 1 As shown, in the process of reading data, in order to improve performance, the data will be read from the high-speed device first, and if it exists in the high-speed device, it will return success. If it does not exist in the high-speed device, it will request the...

AI Technical Summary

Problems solved by technology

[0005] In view of this, an embodiment of the present invention provides a cache read-write method, device, and electronic equipment to solve the problem of low cache read-write efficiency

Images