By Topic

Experimental evaluation of the fail-silent behavior of a distributed real-time run-time support built from COTS components

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
2 Author(s)
P. Chevochot ; IRISA, Rennes, France ; I. Puaut

Mainly for economic and maintainability reasons, more and more dependable real-time systems are being built from commercial off-the-shelf (COTS) components. To build these systems, a commonly-used assumption is that computers are fail-silent. The goal of our work is so determine the coverage of the fail-silence assumption for computers executing a real-time run-time support system built exclusively from COTS components, in the presence of physical faults. The evaluation of fail-silence has been performed on the HADES (Highly Available Distributed Embedded System) run-time support system, aimed at executing distributed hard real-time dependable applications. The main result of the evaluation is a fail-silence coverage of 99.1%. Moreover, we evaluate the error detection mechanisms embedded in HADES according to a rich set of metrics which provides guidance for choosing the set of error detection mechanisms that is best suited to the system needs (e.g. find the best trade-off between fail-silence coverage and overhead caused by error detection).

Published in:

Dependable Systems and Networks, 2001. DSN 2001. International Conference on

Date of Conference:

1-4 July 2001