An Adaptive, Distributed Airborne Tracking System ("process the Right Tracks at the Right Time")
Proceedings of the 11 IPPS/SPDP'99 Workshops Held in Conjunction with the 13th International Parallel Processing Symposium and 10th Symposium on Parallel and Distributed Processing
Implementing a General Real-Time Scheduling Framework in the RED-Linux Real-Time Kernel
RTSS '99 Proceedings of the 20th IEEE Real-Time Systems Symposium
Scheduling dependent real-time activities
Scheduling dependent real-time activities
The Partitioned Multiprocessor Scheduling of Sporadic Task Systems
RTSS '05 Proceedings of the 26th IEEE International Real-Time Systems Symposium
On the Design and Implementation of a Cache-Aware Multicore Real-Time Scheduler
ECRTS '09 Proceedings of the 2009 21st Euromicro Conference on Real-Time Systems
Cache-aware scheduling and analysis for multicores
EMSOFT '09 Proceedings of the seventh ACM international conference on Embedded software
Fast algorithms for bin packing
Journal of Computer and System Sciences
On best-effort utility accrual real-time scheduling on multiprocessors
OPODIS'10 Proceedings of the 14th international conference on Principles of distributed systems
STM concurrency control for embedded real-time software with tighter time bounds
Proceedings of the 49th Annual Design Automation Conference
Journal of Experimental Algorithmics (JEA)
An experimental evaluation of real-time DVFS scheduling algorithms
Proceedings of the 5th Annual International Systems and Storage Conference
FBLT: a real-time contention manager with improved schedulability
Proceedings of the Conference on Design, Automation and Test in Europe
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We present ChronOS Linux, a best-effort real-time Linux kernel for chip multiprocessors (CMPs). ChronOS addresses the intersection of three problem spaces: a) OS-support for obtaining best-effort timing assurances, b) real-time Linux kernel augmented with the PREEMPT_RT patch, and c) OS support for CMP-aware real-time scheduling. While each of these spaces have been studied in the past, their intersection, which has strong problem motivations, was previously empty. Best-effort timeliness targets real-time applications with run-time uncertainties and resource overloads, and optimizes collective application timeliness --- as specified by the application. ChronOS directly supports the implementation of best-effort real-time schedulers on CMPs, in addition to others, in the global and partitioned scheduling disciplines. ChronOS extends the PREEMPT_RT Linux patch, and thus provides full kernel preemptibility and retains stock Linux features. We validate our claims by reporting on the implementation of a suite of best-effort and non-best-effort CMP schedulers on a quad-core AMD Phenom platform.