Real-time database systems: a new challenge
Data Engineering - Special issue on directions for future DBMS research and development
Scheduling real-time transactions: a performance evaluation
ACM Transactions on Database Systems (TODS)
Distributed and Parallel Databases - Special issue: Research topics in distributed and parallel databases
Processing real-time transactions in a replicated database system
Distributed and Parallel Databases
Scheduling Algorithms for Multiprogramming in a Hard-Real-Time Environment
Journal of the ACM (JACM)
Time Constrained Push Strategies in Client-Server Databases
Distributed and Parallel Databases
| Hi-index | 0.00 |
In recent years, the performance of distributed real-time database systems (DRTDBS) have been examined using different simulation models. In these models, the network issues are always being neglected. The networks are usually modeled as simple constant delay servers. However, it is found that the performance of the underlying network has significant impact on the overall performance of the DRTDBS. The results also showed that unpredictable behavior of the underlying network will give non-constant network transit time which in turn deter the overall system performance. To deal with this impact, different virtual deadline assignment schemes are proposed. The schemes assign a virtual deadline based on the current network condition to those transactions which require a comparatively better performance. Our results demonstrate that dynamically tuning the virtual deadlines of transactions depending on the condition of the network, yields a substantial improvement in the performance of that certain type of transactions without severely affecting the overall system performance.