Scheduling Algorithms for Multiprogramming in a Hard-Real-Time Environment
Journal of the ACM (JACM)
Timing Analysis for Instruction Caches
Real-Time Systems - Special issue on worst-case execution-time analysis
WCET Analysis of Probabilistic Hard Real-Time Systems
RTSS '02 Proceedings of the 23rd IEEE Real-Time Systems Symposium
Computer
Timing Analysis for Sensor Network Nodes of the Atmega Processor Family
RTAS '05 Proceedings of the 11th IEEE Real Time on Embedded Technology and Applications Symposium
RTSS '05 Proceedings of the 26th IEEE International Real-Time Systems Symposium
Hybrid Timing Analysis of Modern Processor Pipelines via Hardware/Software Interactions
RTAS '08 Proceedings of the 2008 IEEE Real-Time and Embedded Technology and Applications Symposium
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Deeply embedded systems often have unique constraints because of their small size and vital roles in critical infrastructure. Problems include limitations on code size, limited access to the actual hardware, etc. These problems become more critical in real-time systems where security policies must not only work within the above limitations but also ensure that task deadlines are not missed. A critical piece of information for security policies in real-time systems is the worst-case execution time (WCET) of the security code. This paper addresses some of the issues faced in the implementation of such security policies and also the process of determining WCETs for them.