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This paper studies the problem of scheduling preemptable queries with relative consistency constraints when the absolute consistency for real-time data objects is preserved. The single query schedule problem is studied first, then the multiple queries scheduling problem. An optimal algorithm and several heuristics for scheduling multiple queries are proposed. Experiments are also conducted to compare...
A new scheduling algorithm called deferrable scheduling with time slice exchange (DS-EXC) was proposed to maintain the temporal validity of real-time data. In DS-EXC, the time slice exchange method was designed to further defer the release time of transaction instances derived by the deferrable scheduling algorithm (DS-FP). In this way, more CPU time would be left for lower priority transactions and...
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