What is multicore timing analysis?

When developing safety-critical applications to DO-178C, AC 20-193, AMC 20-193 and CAST-32A guidelines or ISO 26262 standards, there are special requirements for using multicore processors. Evidence must be produced to demonstrate that software operates within its timing deadlines.

The goal of multicore timing analysis is to produce execution time evidence for these complex systems. In multicore processors, multiple cores compete for the same shared resources, resulting in potential interference channels that can affect execution time. MACH¹⁷⁸ and Rapita's Multicore Timing Solution account for interference to produce robust execution time evidence in multicore systems.