Cache recovery method and device

Abstract

Embodiments of the invention disclose a cache recovery method. The cache recovery method mainly comprises the following steps: receiving request information of applying for an internal memory sent by a process, wherein the request information carries the size of an internal memory space necessary for the process; judging whether a current idle internal memory space satisfies the internal memory space necessary for the process according to the size of the internal memory space necessary for the process; if not, scanning a process table, and clearing background processes in the process table; judging whether the idle internal memory space with the background processes cleared satisfies the internal memory space necessary for the process; if not, judging whether a cache page recovery marker exists; if the cache page recovery marker does not exist, recovering a cache page, setting the cache page recovery marker, judging whether the idle internal memory space satisfies the internal memory space necessary for the process after the cache page is recovered, and if the cache page recovery marker exists, clearing foreground processes in the process table. The cache recovery method disclosed by the embodiments of the invention is used for improving the user experience to a certain extent.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to a cache recovery method and a cache recovery device. Background technique [0002] With the popularity of the Android operating system, there are more and more applications that can run on the Android system. In order to improve the operating efficiency and fluency of many applications, when they are installed and running, the user data of the application , Temporary files, audio, video and other resources are stored as cache files in the memory of the Android device. As more and more applications are used, more and more cache files will result in insufficient memory space. [0003] Aiming at the problem of insufficient memory space, there are two memory recycling methods in the prior art. One is to initiate a memory page recycling action when the required memory space is found to be insufficient during the process of applying for memory. The activity of the m...

AI Technical Summary

Problems solved by technology

[0004] However, the inventors have found that when the active processes in the foreground use a lot of memory space, there are relatively few inactive memory pages. At this time, if the first recycling method is used, the effect is very poor. However, if the second method is used to directly remove some Clearing the processes will naturally release all the memory occupied by these processes. However, as more and more applications are running on the system, the memory space is used more and more, and the situation of insufficient memory space is more likely to occur. In this way, in When the total physical memory of the system is small, and there are many programs open at the same time, the second method will be easier to clear the foreground process, that is, close the application that the user is currently using, which will seriously affect the user experience.

Images