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Soft Real-Time on Multiprocessors: Are Analysis-Based Schedulers Really Worth It?
 

Summary: Soft Real-Time on Multiprocessors:
Are Analysis-Based Schedulers Really Worth It?
Christopher J. Kenna
, Jonathan L. Herman
, Bjšorn B. Brandenburg
, Alex F. Mills
, and James H. Anderson
Departments of Computer Science
and Statistics and Operations Research
The University of North Carolina at Chapel Hill
Abstract
The evolution of multicore platforms has led to much recent
work on multiprocessor scheduling techniques for soft real-
time workloads. However, end users routinely run such work-
loads atop general-purpose operating systems with seemingly
good results, albeit typically on over-provisioned systems.
This raises the question: when, if ever, is the use of an analysis-
based scheduler actually warranted? In this paper, this ques-
tion is addressed via a video-decoding case study in which a
scheme based on the global earliest-deadline-first (G-EDF)

  

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

 

Collections: Computer Technologies and Information Sciences