5 papers
Awkernel: RTOS Bridging DAG Scheduling Theory and Component-Oriented Real-Time Systems Practice
Atsushi Yano, Ryo Nishimura, Yutaro Kobayashi +3
Real-time directed acyclic graph (DAG) scheduling provides a rigorous basis for timing analysis and efficiency in component-oriented real-time systems (CORTS) such as autonomous dr…
Toward the Right Analytical Model and System Software for Autonomous Driving Systems: Open Problems and Research Directions
Atsushi Yano, Takuya Azumi
Autonomous driving (AD) systems continuously transform multi-rate and asynchronous sensor streams into vehicle actuation through graphs of callbacks, nodes, and middleware componen…
ipc_shared_ptr: A Publish/Subscribe-Aware Smart Pointer for Cross-Process Object Lifetime Management
Takahiro Ishikawa-Aso, Atsushi Yano, Koichi Imai +2
True zero-copy Inter-Process Communication (IPC) in publish/subscribe (pub/sub) middleware such as Robot Operating System 2 (ROS 2) requires subscribers to reference message object…
Accelerating Probabilistic Response-Time Analysis: Revised Critical Instant and Optimized Convolution
Hiroto Takahashi, Atsushi Yano, Takuya Azumi
Accurate estimation of the Worst-Case Deadline Failure Probability (WCDFP) has attracted growing attention as a means to provide safety assurances in complex systems such as roboti…
Generalized Inequality-based Approach for Probabilistic WCET Estimation
Hayate Toba, Atsushi Yano, Takuya Azumi
Estimating the probabilistic Worst-Case Execution Time (pWCET) is essential for ensuring the timing correctness of real-time applications, such as in robot IoT systems and autonomo…