Response time analysis and priority assignment of processing chains on ROS2 executors
ROS (Robot Operating System) is currently the most popular robotic software development
framework. Robotic software in safe-critical domain are usually subject to hard real-time …
framework. Robotic software in safe-critical domain are usually subject to hard real-time …
Timing analysis of asynchronized distributed cause-effect chains
Real-time systems require the formal guarantee of timing-constraints, not only for the
individual tasks but also for the data-propagation paths. A cause-effect chain describes the …
individual tasks but also for the data-propagation paths. A cause-effect chain describes the …
End-to-end timing analysis in ROS2
Modern autonomous vehicle platforms feature many interacting components and sensors,
which add to the system complexity and affect their performance. A key aspect for such …
which add to the system complexity and affect their performance. A key aspect for such …
End-To-End Latency of Cause-Effect Chains: A Tutorial
In many applications of cyber-physical systems, a sequence of tasks is necessary to perform
a certain functionality. For example, from a sensor to an actuator, the first task reads the …
a certain functionality. For example, from a sensor to an actuator, the first task reads the …
On the equivalence of maximum reaction time and maximum data age for cause-effect chains
Real-time systems require a formal guarantee of timing-constraints, not only for individual
tasks but also for data-propagation. The timing behavior of data-propagation paths in a …
tasks but also for data-propagation. The timing behavior of data-propagation paths in a …
Compositional timing analysis of asynchronized distributed cause-effect chains
Real-time systems require the formal guarantee of timing constraints, not only for the
individual tasks but also for the end-to-end latency of data flows. The data flow among …
individual tasks but also for the end-to-end latency of data flows. The data flow among …
Constrained data-age with job-level dependencies: How to reconcile tight bounds and overheads
T Klaus, M Becker… - 2021 IEEE 27th Real …, 2021 - ieeexplore.ieee.org
Many industrial real-time systems rely on the implicit register communication paradigm to
minimize overheads and ease distributed development. Here, tasks follow a simple input …
minimize overheads and ease distributed development. Here, tasks follow a simple input …
McSad: A Monte Carlo-based end-to-end scheduling anomaly detection method for distributed real-time systems
X Shi, Y Zhu, L Li, J Li - Simulation Modelling Practice and Theory, 2023 - Elsevier
A scheduling anomaly is a counter-intuitive timing behavior that seriously jeopardizes the
system. Although several types of scheduling anomaly have been proposed and their effects …
system. Although several types of scheduling anomaly have been proposed and their effects …
Optimizing logical execution time model for both determinism and low latency
The Logical Execution Time (LET) programming model has recently received considerable
attention, particularly because of its timing and dataflow determinism. In LET, task …
attention, particularly because of its timing and dataflow determinism. In LET, task …
End-To-End Timing Analysis and Optimization of Multi-Executor ROS 2 Systems
Modern robot systems, like autonomous vehicles, are complex, distributed systems that
consist of many interacting components. End-to-end timing latency guarantees are key …
consist of many interacting components. End-to-end timing latency guarantees are key …