The design of the TAO real-time object request broker

13 years 4 months ago

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Many real-time application domains can beneﬁt from ﬂexible and open distributed architectures, such as those deﬁned by the CORBA speciﬁcation. CORBA is an architecture for distributed object computing being standardized by the OMG. Although CORBA is well-suited for conventional request/response applications, CORBA implementations are not yet suited for real-time applications due to the lack of key quality of service (QoS) features and performance optimizations. This paper makes three contributions to the design of realtime CORBA systems. First, the paper describes the design of TAO, which is our high-performance, real-time CORBAcompliant implementation that runs on a range of OS platforms with real-time features including VxWorks, Chorus, Solaris 2.x, and Windows NT. Second, it presents TAO’s realtime scheduling service that can provide QoS guarantees for deterministic real-time CORBA applications. Finally, the paper presents performance measurements that demonstrate the eff...

Douglas C. Schmidt, David L. Levine, Sumedh Mungee

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