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A workload-oriented programming model for temporal isolation with VBS
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by Silviu S. Craciunas, Christoph Kirsch, and Ana Sokolova
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Abstract:
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Workload-oriented programming is a design methodology for
specifying throughput and latency of real-time software processes in
temporal isolation from each other on the level of individual process 
actions such as system or procedure calls. The key programming 
abstraction is that the type and amount of workload involved in 
executing a process action fully determines the action's response 
time, independently of any previous or concurrent actions. The model 
enables sequential and concurrent real-time process composition while 
maintaining predictability of each action's workload-determined 
real-time behavior. We show how the model can be implemented using 
variable-bandwidth servers (VBS) and discuss performance-related 
options for adequately conguring servers in the presence of non-zero 
scheduler overhead.
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