Integrating Hard/Soft Real-Time Tasks and Best-Effort Jobs on Multiprocessors
Brandenburg, B.B.
Anderson, J.H.
Univ. of North Carolina, Chapel Hill;
This paper appears in: Real-Time Systems, 2007. ECRTS '07. 19th Euromicro Conference on
Publication Date: 4-6 July 2007
On page(s): 61-70
Location: Pisa,
ISSN: 1068-3070
ISBN: 0-7695-2914-3
INSPEC Accession Number: 9834502
Digital Object Identifier: 10.1109/ECRTS.2007.17
Current Version Published: 2007-07-16
Abstract
We present a multiprocessor scheduling framework for integrating hard and soft real-time tasks and best-effort jobs. This framework allows for full system utilization, and ensures that hard real-time deadlines are met and that deadline tardiness is bounded for soft real-time tasks. Dynamic slack reclamation is employed to reduce tardiness and to improve the response time of best-effort jobs. The approach is validated using an implementation within the Linux kernel.
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