基于Linux 网络计算机Java 虚拟机的性能优化.pdf

33 3 2007 2 Vol.33 No.3 Computer Engineering February 2007 · · 2007 A TP311.5 Linux Java ( 230026) Linux Java Java Kaffe Linux NC Java CPU Linux NC Kaffe Java Java Virtual Machine’s Performance Optimization in Linux Network Computer YANG Lijie (School of Software Engineering, University of Science and Technology of China, Hefei 230026) Abstract At present, the performance of Java virtual machine in Linux NC is relatively low. An optimization is researched and developed, which applies and improves the direct threaded interpreter. In this way, considered the conditions of hardware and software, the executing efficiency of Java VM can be upgraded. Meanwhile, the cost of CPU and memory can be decreased. Thereby, the performance of Java virtual machine can be meliorated. Key words Linux; NC; Kaffe; Java virtual machine; Performance optimization NC(Network Computer) Linux 2.1 Kaffe Java Java InternetWeb Kaffe 4 3 Java (1)Kaffe Unix Linux Free NC BSD Kaffe POSIX (2)Kaffe Personal Java NC NC NCO S NC Server Java (Java Virtual 1.1 Java Machine) (3)Kaffe switch-case Java NC (4)Kaffe 1 JVM 2.2 JVM Java Java Write (1)Linux NC Once, Run AnywhereJava Linux