System resource management method and device based on mobile terminal

The invention aims to provide a system resource management method and equipment based on a mobile terminal, background application activities are limited by taking the current CPU load and the available RAM size of an operating system of the mobile terminal as a strategy basis, so that when CPU resources are insufficient, processes of corresponding application programs can be killed step by step according to the CPU total utilization rate of the application programs, and the efficiency of system resource management is improved. Therefore, the CPU resources and the RAM resources are released to a reasonable range, so that the background applications are reserved as many as possible on the premise that the foreground applications can obtain sufficient system resources (CPU and RAM), and the user experience is further improved. 本申请的目的是提供一种基于移动终端的系统资源管理方法及设备，通过移动终端的操作系统的当前CPU负载、可用RAM大小作为策略依据来限制后台应用活动，使得在CPU资源紧张时，可以按照应用程序的CPU总使用率逐级杀掉对应的应用程序的进程，从而释放CPU资源、RAM资源到一个合理范围内，以保证前台应用可以得到充足的系统资源(CPU、RAM)的前提下，尽可能多的保留后台应用，从而进