AvailabilityGuaranteefor

Title: AvailabilityGuaranteefor

Main Research Question: How can we ensure that a replay execution of a non-deterministic or real-time system can be deterministically recreated, allowing for cyclic debugging?

Methodology: The researchers propose a method called deterministic replay. This involves monitoring and logging the events of a reference execution of the system. By inserting probes into the system, they can record control-flow and data-flow events, which describe the execution and the state of tasks. This logged information is used to create a facsimile of the execution for post-mortem analysis.

Results: The researchers present a solution to the problem of managing the eviction scheduler, which is responsible for keeping required entries in the log. They argue that this is crucial for the performance of the replay execution. They also discuss the structure of the task code and how it may affect the starting points for the replay execution.

Implications: The research has important implications for the field of real-time systems and debugging. It provides a method for creating deterministic replay executions, which allows for cyclic debugging. This can significantly improve the efficiency and effectiveness of debugging non-deterministic or real-time systems.

Link to Article: https://arxiv.org/abs/0310024v1 Authors: arXiv ID: 0310024v1