Abstract: Network computer is an interactive device in thin-client computing environment, and studying the behavior of typical applications on this platform is important to the microprocessor design and system development. Based on PKUnity network computer platform, this paper analyzes the d-TLB miss rate and performance penalty of many typical applications under different d-TLB structures and page sizes. The experiment results explain the advantage of TLB design in PKUnity SoC which satisfies the requirement of lower power and low complexity.

Key words: network computer, d-TLB, application behavior analysis, full system simulator, trace driven simulation

摘要： 网络计算机是瘦客户计算模式下的一种交互式信息设备，其上的典型应用程序行为分析对于处理器设计、系统开发有着重要意义。本文基于北大众志网络计算机平台，详细分析了d-TLB结构和页面大小等配置参数的变化，对典型应用程序d-TLB失效率和d-TLB失效导致的性能损失等所产生的影响。实验结果阐明了北大众志系统芯片中TLB部件在自身结构和多种页面支持等方面的设计原理和优势。

关键词: dTLB, 应用程序行为分析, 全系统模拟器, 踪迹驱动模拟, 网络计算机