rtORB:一个实时CORBA的原型  

rtORB: A Real-Time CORBA Prototype

作　　者：彭舰[1] 刘锦德[2] 谭浩[2] 

机构地区：[1]四川大学计算机学院,四川成都610065 [2]电子科技大学计算机学院微机所,四川成都610054

出　　处：《小型微型计算机系统》2004年第6期956-960,共5页Journal of Chinese Computer Systems

基　　金：总装备部预研项目 ( 4 13 15 0 10 10 3 ) ;四川大学青年基金 ( 0 0 3 0 40 5 5 0 5 0 0 9)

摘　　要：实时 CORBA的推出 ,将 CORBA的应用范围扩展到实时领域 .介绍了一个实时 CORBA的原型 rt ORB.着重描述了 rt ORB结构上的几个重要部分 :平台依赖层 ,动态调度服务 ,显式绑定和实时对象适配器 .同时 ,在 rt ORB的实现过程中 ,采用了多种优化手段 ,合理地处理了性能优化问题 .实验表明 ,该 rt ORB可以支持实时应用 .A real-time CORBA prototype called rtORB is presented. The key components of rtORB are mainly described. A platform dependent layer is introduced to enhance the portability of ORB. The scheduling service proposed in real-time CORBA specification is extended to support dynamic scheduling. An explicit binding model is used to establish predictable communication channel. A de-layered real-time POA is designed to minimize the overhead of demultiplexing and dispatching incoming requests and to avoid priority inversion. Several methods used to optimize its performance are discussed deeply. The real-time performance experiments show that rtORB is capable enough to support real-time application.

关 键 词：实时CORBA 平台依赖层 动态调度 显式绑定 性能优化 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]