Typical applications for variable execution time scheduling include process scheduling in Real-Time Operating Systems such as Maruti, compiler scheduling, database transaction scheduling and automated machine control.
The execution time of scheduling functions is predictable and deterministic.
(i) The total execution time after scheduling all tasks (Texe_Total).
Total execution time of application Scheduling time Size of the scheduler IP Need to resynthesize Variation of execution time of tasks Impacted Not impacted Not impacted No Variation of partitioning results Impacted Impacted Not impacted No Variation of the DFG structure (fork, join, etc).
If we consider that the steady state current (and hence the power) profile obtained when running this experiment is almost flat since the processor does not access the external bus, the energy cost of the scheduler is proportional to the execution time of the scheduling routines which decrease with the increase of the frequency.
The former schedules the tasks to resources before the actual execution time and later schedules them at the time of execution.
The use of GA decreases execution time of resource scheduling.
We can notice that the structure of the DFG has a great effect on the execution time of the scheduling operations.
In order to facilitate the calculation of the overall execution time of job scheduling scheme, we add E i,j) to indicate whether job i is assigned to the cluster j.
A task is executed at run time if the condition outcomes that label the arcs in the path to the task hold at schedule execution time; this can be captured off-line by adopting a stochastic model.
At this point, by adjusting execution time of the new scheduling event, the simulator can support various scheduling intervals, e.g., multiple of 1 ms. The service departure event terminates the service that generated this event.
