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Deterministic Replay for Debugging of Distributed Real-Time Systems

Publication Type:

Report - MRTC




Cyclic debugging is one of the most important and most commonly used activities in program development. During cyclic debugging, the program is repeatedly re-executed to track down errors when a failure has been observed. Consequently is reproducibility a necessity. Applying classical debugging techniques, such as using breakpoints or single-stepping, in real-time systems change the temporal behavior and make reproduction of the failure during debugging less likely, if not impossible. Consequently, these techniques are not directly applicable for cyclic debugging of real-time systems. In this paper we present a novel software-based approach for cyclic debugging of distributed real-time systems. By on-line recording significant system events, and off-line deterministically replaying them, we can inspect the real-time system in deep detail while still preserving its real-time behavior.


author = {Henrik Thane and Hans Hansson},
title = {Deterministic Replay for Debugging of Distributed Real-Time Systems},
number = {ISSN 1404-3041 ISRN MDH-MRTC-10/1999-1-SE},
month = {December},
year = {1999},
url = {}