Mixed-criticality systems, in which multiple tasks of varying criticality are executed on a single hardware platform, are an emerging research area in real-time embedded systems. High-criticality tasks require spatial and temporal isolation guarantees, whereas low-criticality tasks should efficiently utilize hardware resources. Hardware-based isolation is desirable, but commonly underutilizes hardware resources, which can consist of multiple single-core, multicore, or multithreaded processors. We present FlexPRET, a processor designed specifically for mixed-criticality systems by allowing each task to make a trade-off between hardware-based isolation and efficient processor utilization. FlexPRET uses fine-grained multithreading with flexible scheduling and timing instructions to provide this functionality.
Title
FlexPRET: A Processor Platform for Mixed-Criticality Systems
Published
2013-10-23
Full Collection Name
Electrical Engineering & Computer Sciences Technical Reports
Other Identifiers
EECS-2013-172
Type
Text
Extent
12 p
Archive
The Engineering Library
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