Composable Resource Sharing Based on Latency-Rate Servers

Benny Akesson, A. Hansson, Kees Goossens

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    22 Citations (Scopus)
    210 Downloads (Pure)

    Abstract

    Verification of application requirements is becoming a bottleneck in system-on-chip design, as the number of applications grows. Traditionally, the verification complexity increases exponentially with the number of applications and must be repeated if an application is added, removed, or modified. Predictable systems offering lower bounds on performance have been proposed to manage the increasing verification complexity, although this approach is only applicable to a restricted set of applications and systems. Composable systems, on the other hand, completely isolate applications in both the value and time domains, allowing them to be independently verified. However, existing approaches to composable system design are either restricted to applications that can be statically scheduled, or share resources using time-division multiplexing, which cannot efficiently satisfy tight latency requirements. In this paper, we present an approach to composable resource sharing based on latency-rate servers that supports any arbiter belonging to the class, providing a larger solution space for a given set of requirements. The approach can be combined with formal performance analysis using a variety of well-known modeling frame works. We furthermore propose an architecture for a resource front end that implements our concepts and provides composable service for any resource with bounded service time. The architecture supports both systems with buffers dimensioned to prevent overflow and systems with smaller buffers, where overflow is prevented with flow control. Finally, we experimentally demonstrate the usefulness of our approach with a simple use case sharing an SRAM memory.
    Original languageUndefined
    Title of host publicationProceedings of the EUROMICRO Conference on Digital System Design
    Place of PublicationLos Alamitos
    PublisherIEEE Computer Society
    Pages547-555
    Number of pages9
    ISBN (Print)978-0-7695-3782-5
    DOIs
    Publication statusPublished - 27 Aug 2009
    Event12th EUROMICRO Conference on Digital System Design, DSD 2009: Architectures, Methods and Tools - Conference and Cultural Centre of the University of Patras, Patras, Greece
    Duration: 27 Aug 200929 Aug 2009
    Conference number: 12
    http://www.iuma.ulpgc.es/dsd09/

    Publication series

    Name
    PublisherIEEE Computer Society Press

    Conference

    Conference12th EUROMICRO Conference on Digital System Design, DSD 2009
    Abbreviated titleDSD
    CountryGreece
    CityPatras
    Period27/08/0929/08/09
    Internet address

    Keywords

    • METIS-264475
    • IR-69774
    • Verification
    • EWI-17194
    • Composability
    • resource sharing
    • latency-rate servers
    • Real Time

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