The results of a performance evaluation of the Software-Implemented Fault-Tolerance (SIFT) computer system conducted in the NASA Avionics Integration Research Laboratory are presented. The essential system functions are described and compared to both earlier design proposals and subsequent design improvements. Using SIFT's specimen task load, the executive tasks, such as reconfiguration, clock synchronization, and interactive consistency, are found to consume significant computing resources. Together with other system overhead (e.g., voting and scheduling), the operating system overhead is in excess of 60 percent. The authors propose specific design changes that reduce this overhead burden significantly.
A performance evaluation of the software-implemented fault-tolerance computer
1986-04-01
Miscellaneous
No indication
English
Software-Implemented Fault Tolerance in Communication Systems
British Library Conference Proceedings | 1994
|Software implemented transient fault detection in space computer
Online Contents | 2007
|Software implemented fault tolerance of triple-redundant dynamic positioning (DP) control system
Taylor & Francis Verlag | 2017
|