NDLI: Increasing Memory Utilization with Transient Memory Scheduling

Content Provider	IEEE Xplore Digital Library
Author	Qi Wang Jiguo Song Parmer, G. Sweeney, A. Venkataramani, G.
Copyright Year	2012
Abstract	In addition to predictability, both reliability and security are increasingly important for embedded systems. To limit the scope of errant behavior in open and mixed criticality systems, a common approach is to raise isolation barriers between software components. However, this decentralizes memory management across all system components. Memory is often cached and quickly accessible in each application. This paper introduces the TMEM system for increasing memory utilization while optimizing for application end-to-end constraints such as meeting deadlines. In addition to the traditional spatial multiplexing of memory, TMEM introduces the predictable temporal multiplexing of memory within caches in a system component, and memory scheduling to continually reallocate memory between components to best benefit the system. We find that TMEM is able to maintain the efficiency of caches, while also lowering both task tardiness and system memory requirements.
Starting Page	248
Ending Page	259
File Size	280721
Page Count	12
File Format	PDF
ISBN	9781467330985
ISSN	10528725
DOI	10.1109/RTSS.2012.76
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-12-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Memory management Resource management Transient analysis Instruction sets Real-time systems Scheduling Protocols QoS Predictable IPC memory management soft real-time
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture Software

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