This paper presents a cost-effective and formal approach to model and analyze streaming applications on multi-processor systems-on-chip (MPSoCs). This approach enables to address time requirements, mapping of applications on MPSoCs and system behavior correctness by using abstract clocks of synchronous languages. Compared to usual prototyping and simulation techniques, it is very fast and favors correctness-by-construction. No coding is needed to run and analyze a system, which avoids tedious debugging efforts. It is an ideal complement to existing techniques to deal with large system design spaces.