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1996
IEEE

Scheduling transactions with temporal constraints: exploiting data semantics

9 years 4 months ago
Scheduling transactions with temporal constraints: exploiting data semantics
In this paper, issues involved in the design of a real-time database which maintains data temporal consistency are discussed. The concept of data-deadline is introduced and time cognizant transaction scheduling policies are proposed. Informally, data-deadline is a deadline assigned to a transaction due to the temporal constraints of the data accessed by the transaction. Further, two time cognizant forced wait policies which improve performance significantly by forcing a transaction to delay further execution until a new version of sensor data becomes available are proposed. A way to exploit temporal data similarity to improve performance is also proposed. Finally, these policies are evaluated through detailed simulation experiments. The simulation results show that taking advantage of temporal data semantics in transaction scheduling can significantly improve the performance of user transactions in realtime database systems. In particular, it is demonstrated that under the forced wait ...
Ming Xiong, Rajendran M. Sivasankaran, John A. Sta
Added 07 Aug 2010
Updated 07 Aug 2010
Type Conference
Year 1996
Where RTSS
Authors Ming Xiong, Rajendran M. Sivasankaran, John A. Stankovic, Krithi Ramamritham, Donald F. Towsley
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