基于资源动态变化的桌面Linux交互性能测试方法

传统的性能测试方法或者仅关心操作系统或CPU的局部吞吐量性能,或者仅关注应用软件的使用性能,不能反映L inux系统对桌面交互应用的影响。该文提出了基于动态变化的系统资源环境,利用事件处理延迟时间对L inux桌面应用进行交互式性能测试的方法。建立了桌面应用的静态模型,改进了已有的动态模型,完成了在不同的内存负载下应用软件启动交互性能测试。基于该方法的测试结果表明L inux桌面应用交互性能在软件启动方面不佳,在桌面应用环境下的sw ap效率较低。由于L inux体系结构和算法源自传统U n ix,先天比较适合服务器。因而L inux要成为性能卓越的桌面操作系统,除了应用软件自身需要改进外,系统资源的管理调度也需要优化。

A methodology for interactive performance measurement in desktop Linux based on dynamic resource environment

The conventional methodology for Linux performance measurements focus only on the OS,the CPU,or applications,so they can not demonstrate the influence of the OS on the application performance.This paper presents a methodology using event handling latency to measure the interactive performance of applications in a dynamic resource environment.A static model of the desktop application was built and the existing dynamic model was improved.The experimental results on startup latency of applications measured with dynamic free memory show that both the startup latency and the swap efficiency are poor.Linux provides poor interactive performance for desktop applications with the architecture and algorithm designed for the traditional Unix server.Therefore,Linux must be optimized to improve resource management for desktop application.