Three Tasks Allocation for Multitasks Processing

Abstract

Abstract - The objective of this paper is to design a scheduler of task allocation time of simultaneous running three majority tasks. Prior CPU usage of each task was constructed from historical CPU usage data. Objective of task allocation scheduler is to minimize three tasks CPU usage while they are both processing. Constraint of starting time and finish time of all tasks were pre assigned by system administrator. Lagrange function was used to find out the minimum value of total CPU usage. Feasible result variable, starting time of each task, were used to be as a posterior starting time of each task. For performance testing, this scheduler was test on 5 working day on ordinary transaction processing. There were 36 collected data on a working day. The result of average turnaround time of three major tasks allocation under designed TTAMP scheduler are decrease about 12.60% from ordinary FIFO scheduler. TTAMP gave a better solution about when to start task processing for a given task than FIFO multi task scheduler.
Index Terms – Three task allocation scheduler, Multitasking.