Abstract: A memory management method includes starting a first application that comprises a first process and a second process, where a process name of the second process comprises a process name of the first process and a colon. The method also includes switching the first application to background and starting a second application. After the first application is switched to the background and the second application is started, a compression ratio of data of the first process is a first compression ratio, a compression ratio of data of the second process is a second compression ratio, and the first compression ratio is greater than the second compression ratio.

Abstract: This application provides a method and an apparatus for adjusting a memory configuration parameter. The method includes: obtaining a plurality of pieces of resource pressure, where the plurality of pieces of resource pressure are used to indicate a plurality of requirements for memory compression; and adjusting a memory configuration parameter based on the plurality of pieces of resource pressure, where there is a preset correspondence between the memory configuration parameter and each of the plurality of pieces of resource pressure. The resource pressure is, for example, processor pressure, I/O pressure, memory reclaim pressure, or memory swap space pressure. Memory compression requirements corresponding to different types of resource pressure are different. In the memory adjustment method provided in this application, a plurality of types of information are comprehensively considered, so that system performance can be optimized, and a memory management effect can be improved.

Abstract: An application keepalive method includes, when a foreground application run by the electronic device is switched from a first application to a second application, a callback probability of the second application relative to the first application is obtained, and when the callback probability of the second application relative to the first application is greater than a preset threshold, a keepalive priority of the first application is increased when the first application is used as a background application. When system resources are insufficient, the electronic device ends a process of at least one background application in ascending order of keepalive priorities to release system resources.