FlexPRET: A Processor Platform for Mixed-Criticality Systems
Abstract
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. Flex-PRET uses fine-grained multithreading with flexible scheduling and timing instructions to provide this functionality.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 23, 2013
- Accession Number
- ADA593578
Entities
People
- Christopher Shaver
- David Broman
- Edward A. Lee
- Michael Zimmer
Organizations
- University of California, Berkeley