A real-time CORBA prototype rtORB is introduced, and a platform for real-time performance testing is provided. Using delay and delay jitter as indicators, the performance comparison with other real-time CORBA shows that rtORB can support real-time applications. To evaluate the impact of operating system and communication on real-time CORBA, tests are conducted on different operating systems. Based on the test results of rtORB on different operating systems, the impact of operating system and communication on real-time applications based on real-time CORBA is discussed. Keywords real-time CORBA; test platform; operating system; real-time communication; delay; jitter Abstract Real-time CORBA specification extends the scope of CORBA application to real-time field. A real-time CORBA prototype called rtORB is introduced. Then a test platform is proposed to evaluate real-time performance of rtORB. The delay and delay jitter are selected as test parameters to compare rtORB with other real-time CORBA product. The test results show that rtORB can support real-time application. A series of experiments on various operating systems are conducted to evaluate the influence that operating system and communication system impact on real-time CORBA. The test results are discussed in details and some suggestions directing how to build real-time application based on real-time CORBA are given.Key words real-time CORBA; test platform; operating system; real-time communication; delay; jitter
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