Towards Real Multi-Criticality Scheduling
Ref: HURRAY-TR-090801 Publication Date: 24 to 26, Aug, 2009
Towards Real Multi-Criticality Scheduling
Ref: HURRAY-TR-090801 Publication Date: 24 to 26, Aug, 2009Abstract:
Componentised systems, in particular those with
fault confinement through address spaces, are currently emerging
as a hot topic in embedded systems research. This paper extends
the unified rate-based scheduling framework RBED in several
dimensions to fit the requirements of such systems: We have
removed the requirement that the deadline of a task is equal
to its period. The introduction of inter-process communication
reflects the need to communicate. Additionally we also discuss
server tasks, budget replenishment and the low level details
needed to deal with the physical reality of systems. While a
number of these issues have been studied in previous work
in isolation, we focus on the problems discovered and lessons
learned when integrating solutions. We report on our experiences
implementing the proposed mechanisms in a commercial grade
OKL4 microkernel as well as an application with soft real-time
and best-effort tasks on top of it.
Stefan M. Petters
Martin LawitzkyDocument:
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Download15th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA 2009), IEEE, pp 155-164.
Beijing, China.
DOI:10.1109/RTCSA.2009.24.
WOS ID: 000276774500018.
Record Date: 1, Aug, 2009