Multiprocessor Extensions to Real-Time Calculus

Abstract—Many embedded platforms consist of a heterogeneous collection of processing elements, memory modules, and communication subsystems. These components often implement different scheduling/arbitration policies, have different interfaces, and are supplied by different vendors. Hence, compositional techniques for modeling and analyzing such platforms are of interest. In prior work, the real-time calculus framework has proven to be very effective in this regard. However, real-time calculus has heretofore been limited to systems with uniprocessor processing elements, which is a serious impediment given the advent of multicore technologies. In this paper, a two-step approach is proposed that allows the power of real-time calculus to be applied in globally-scheduled multiprocessor systems: first, assuming that job response-time bounds are given, determine whether these bounds are met; second, using these bounds, determine the resulting residual processor supply and streams of job co...

• Type: Conference
• Year: 2009
• Where: RTSS
• Authors: Hennadiy Leontyev, Samarjit Chakraborty, James H. Anderson
• Keywords: Applied Computing, Real-time Calculus, Real-time Calculus Framework, Response-time Bounds, RTSS 2009