Coresuch

Coresuch is an open-source runtime and scheduling framework designed for heterogeneous multi-core and multi-processor embedded systems. It provides core abstractions, deterministic scheduling policies and resource management primitives intended to simplify development of real-time and safety-critical applications in domains such as automotive, industrial control and robotics.

The architecture of Coresuch centers on a lightweight core layer that mediates access to processing units, memory regions and peripheral channels. It implements priority-aware time partitioning, inter-core message passing and configurable isolation boundaries to support mixed-criticality workloads. A user-space component model exposes APIs for task creation, real-time timers, and device drivers, while tooling typically includes an analysis suite for worst-case execution time estimation and trace visualization.

Coresuch emerged in the mid-2010s as an alternative to monolithic real-time operating systems, emphasizing composability and predictable behavior on heterogeneous hardware. It has been integrated into a range of development toolchains and is often used alongside industry standards for functional safety and communication stacks.

Advantages attributed to Coresuch include improved determinism for mixed workloads, portability across architectures and modularity that aids certification. Criticisms focus on the learning curve for its abstraction model, overheads introduced by strict isolation in resource-constrained environments and the complexity of tuning for optimal latency. The project continues to evolve through contributions from academic and commercial stakeholders.