This paper presents the experimental study of the performance of Real-Time Linux based on the x86 architecture. Holding the hardware constant and using different measurement methodologies, we measured a list of performance (ten kinds of test), including the overheads incurred during operating systems context switching test, conditional variable test, rt-fifo read/write test, mbuff read/write test, etc. Our experiments and analysis show that Real-Time linux provides good raw performance and it is suitable as an operating system platform for developing and running soft and hard real-time applications.

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