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Supporting Sporadic Pipelined Tasks with Early-Releasing in Soft Real-Time Multiprocessor Systems
 

Summary: Supporting Sporadic Pipelined Tasks with Early-Releasing in Soft Real-Time
Multiprocessor Systems
Cong Liu and James H. Anderson
Department of Computer Science, University of North Carolina at Chapel Hill
Abstract
Soft real-time sporadic multiprocessor task systems are
considered that include processing pipelines. Conditions
are presented for guaranteeing bounded deadline tardiness
in such systems under global EDF or FIFO scheduling.
"Early-releasing" is applied to make pipeline scheduling
work-conserving. This lessens job response times in lightly-
loaded systems.
1 Introduction
With the advent of multicore technologies, it is impor-
tant for programming frameworks for real-time applications
to provide support for commonly-used multiprocessor pro-
gramming techniques. One such technique is pipelined ex-
ecution, which is used to increase throughput by leveraging
the parallelism inherent on multiprocessor platforms. In this
paper, we consider the problem of supporting such pipelines

  

Source: Anderson, James - Department of Computer Science, University of North Carolina at Chapel Hill

 

Collections: Computer Technologies and Information Sciences