The design of an extra performance architecture for Delta-4, which explicitly supports the requirements of real-time systems with respect to throughput and response, is presented. The Delta-4 approach to fault tolerance is based on the replication of software components on distinct host computers using a range of different replication strategies. The problems of replicate divergence are discussed, and a solution based on message selection and preemption synchronization messages is proposed. A description of the ongoing implementation of such a system within the overall Delta-4 framework is included.
|Original language||English (US)|
|Title of host publication||Digest of Papers - FTCS (Fault-Tolerant Computing Symposium)|
|Publisher||Publ by IEEEPiscataway, NJ, United States|
|Number of pages||8|
|State||Published - Dec 1 1990|