Maintaining I/O Data Coherence in Embedded Multicore Systems

Maintaining I/O Data Coherence in Embedded Multicore Systems

In embedded systems, multiple cores mean multiple caches and often multiple cache levels. Consequently, maintaining coherency between the cores' caches and the data generated or consumed by I/O devices is challenging, with different solutions trading off hardware versus software complexity. The...

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Veröffentlicht in:IEEE MICRO 2009-05, Vol.29 (3), p.10-19
1. Verfasser: Berg, T.B.
Format: Artikel
Sprache:eng
Schlagworte:
Cache
Coherence
coherence manager
Complexity
Computer programs
Consumption
Control systems
Data processing
Devices
Embedded computing
Embedded software
Embedded system
Embedded systems
Hardware
hardware/software interfaces
I/O coherence
Input output
memory hierarchy
Microprocessors
multicore
Multicore processing
Optimization
Software
Software maintenance
US Department of Transportation
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Beschreibung
Zusammenfassung:In embedded systems, multiple cores mean multiple caches and often multiple cache levels. Consequently, maintaining coherency between the cores' caches and the data generated or consumed by I/O devices is challenging, with different solutions trading off hardware versus software complexity. The optimal approach for I/O data coherence depends on application and system characteristics, and might require a combination of techniques.
ISSN:0272-1732
1937-4143
DOI:10.1109/MM.2009.44