Data cache layer replacement algorithm based on user activity degree

Abstract

The invention discloses a data cache layer replacement algorithm based on the user activity degree. The method comprises the following steps of S1, initializing cache activity users; S2, synchronizing data between a data cache layer and a database; S3, calculating the user activity degree again and setting a third-level pre-warning value; S4, setting a first-level pre-warning value and a second-level pre-warning value; S5, judging the activity degree change situation of the users in the cache layer according to the first-level pre-warning value, the second-level pre-warning value and the third-level pre-warning value; S6, performing activity user cache replacement; S7, repeating operation of the S2 to S6 according to a period set by a system administrator until a system stops operation. According to the method, the data of the users with high activity degree are stored in the data cache layer by calculating out the user activity degree; response can be directly obtained from the cache layer without accessing a server when the users with the high activity degree access; the time for responding user requests is greatly reduced, and the user experience is improved.

Description

technical field [0001] The invention belongs to the technical field of data cache, and in particular relates to a data cache layer replacement algorithm based on user activity. Background technique [0002] In the database and server architecture, in order to improve the speed of data reading and writing, a data cache layer is often added between the Web server and the database server. Its function is to create a copy of frequently accessed data, so that a query access request It used to be necessary to request a database operation, but now you can first check whether there is a copy of the searched data in the cache layer. If there is a copy already saved, you don’t need to request the database, and read it directly in the cache layer, so that the data access speed can be improved. Huge improvements. However, this method uses the LRU algorithm to cache recently accessed data, and the performance improvement for social networking platforms with specific business requirement...

AI Technical Summary

Problems solved by technology

[0004] In the current technology, there is no technology that can replace the cache layer after evaluating the activity, which will make the cache layer just use the ordinary LRU replacement method, without making improvements to the nature of the business

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