基于车载信息娱乐系统的内存管理研究及优化  

Research and Optimization on Memory Management Based on InVehicle Infotainment System

作　　者：黄嘉桐 丁冠源 回姝 郑红丽 Huang Jiatong;Ding Guanyuan;Hui Shu;Zheng Hongli(Intelligent and Connected Vehicle Development Institute,China FAW Corporation Limited,Changchun 130013;State Key Laboratory of Comprehensive Technology on Automobile Vibration and Noise&Safety Control,Changchun 130013)

机构地区：[1]中国第一汽车股份有限公司智能网联开发院,长春130013 [2]汽车振动噪声与安全控制综合技术国家重点实验室,长春130013

出　　处：《汽车文摘》2022年第4期34-37,共4页Automotive Digest

摘　　要：随着软件定义汽车时代的来临,汽车内娱乐系统愈发趋向于智能化、多样化,越来越多的智联应用集成在娱乐系统上,这给车载娱乐系统的内存管理带来了巨大挑战。为解决这一难题,本文提出一种基于车载信息娱乐系统的内存管理设计方式,重点研究内存管理策略的方案设计,详细论述进程内存泄漏检测机制,App退出时释放内存的策略,以及App使用频次的检测机制及内存区分管理机制等,在设计前期进行系统内存管理,保证车载信息娱乐系统的使用流畅性,有效解决因低内存Android设备,在多应用运行时导致的系统内存不足,卡顿等问题,提升用户体验。With the advent of the era of software-defined vehicles,in-car entertainment systems are becoming more intelligent and diversified,and more and more connected applications are integrated into the entertainment system,which brings great challenges to the memory management of the in-vehicle entertainment system.In order to solve this problem,this paper proposes a memory management design method based on the in-vehicle infotainment system,focusing on the design of memory management strategies,and discusses in detail the process memory leak detection mechanism,the strategy for releasing memory when the app exits,and the frequency of app usage.The system memory management is carried out in the early stage of design to ensure the smooth use of the in-vehicle infotainment system,and effectively solve the problem of insufficient system memory caused by low-memory Android devices and multi-application running.and other issues to improve the user experience.

关 键 词：车载信息娱乐 内存管理 应用 频度检测 进程内存 泄漏监测 

分 类 号：U471.22[机械工程—车辆工程]