Run-time Dynamic WCET Estimation

Poster

EUPEX consortium partner CINI/Politecnico di Milano had a poster accepted at IoTDI ’23, the 8th ACM/IEEE Conference on Internet of Things Design and Implementation held in May 2023 in San Antonio, Texas, USA.

Abstract

To guarantee the timing constraints of real-time IoT devices, engineers need to estimate the Worst-Case Execution Time. Such estimation is always very pessimistic and represents a condition that almost never occurs in practice. In this poster, we present a novel compiler-based approach that instruments the tasks to inform, at run-time, the operating system when non-worst-case branches are taken. The generated slack is then used to take better scheduling decisions.

Authors: Lia Cagnizi, Federico Reghenzani, William Fornaciari

DOI: 10.1145/3576842.3589168