Sökning: "Timing Predictability"

Visar resultat 1 - 5 av 14 avhandlingar innehållade orden Timing Predictability.

  1. 1. Timing Predictability in Future Multi-Core Avionics Systems

    Författare :Andreas Löfwenmark; Simin Nadjm-Tehrani; Risat Pathan; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Timing Predictability; WCET; WCRT; Fault Tolerance; Safety Critical; Avionics;

    Sammanfattning : With more functionality added to safety-critical avionics systems, new platforms are required to offer the computational capacity needed. Multi-core platforms offer a potential that is now being explored, but they pose significant challenges with respect to predictability due to shared resources (such as memory) being accessed from several cores in parallel. LÄS MER

  2. 2. Enabling Timing Analysis of Complex Embedded Software Systems

    Författare :Johan Kraft; Christer Norström; Anders Wall; Ian Broster; Mälardalens högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Embedded-systems; Real-time-systems; Timing-analysis; Simulation; Simulation-optimization; Simulation-Model-Extraction; Source-code-analysis; Run-time-monitoring; Model-validation; Computer science; Datavetenskap; Computer Science; datavetenskap;

    Sammanfattning : Cars, trains, trucks, telecom networks and industrial robots are examples of products relying on complex embedded software systems, running on embedded computers. Such systems may consist of millions of lines of program code developed by hundreds of engineers over many years, often decades. LÄS MER

  3. 3. The Impact of Application and Architecture Properties on Real-Time Multiprocessor Scheduling

    Författare :Jan Jonsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; real-time scheduling; multiprocessor architectures; architecture properties; application properties; performance evaluation; predictability;

    Sammanfattning : Guaranteeing the temporal correctness of a real-time system is a very challenging problem since application and architecture properties may be hard to model accurately. For example, modern computer architectures are typically equipped with mechanisms, such as cache memories and instruction pipelines, whose behavior are by nature stochastic. LÄS MER

  4. 4. New Techniques for Building Timing-Predictable Embedded Systems

    Författare :Nan Guan; Wang Yi; Lothar Thiele; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Real-time systems; WCET analysis; cache analysis; abstract interpretation; multiprocessor scheduling; fixed-priority scheduling; EDF; multi-core processors; response time analysis; utilization bound; real-time calculus; scalability; Datavetenskap med inriktning mot realtidssystem; Computer Science with specialization in Real Time Systems;

    Sammanfattning : Embedded systems are becoming ubiquitous in our daily life. Due to close interaction with physical world, embedded systems are typically subject to timing constraints. At design time, it must be ensured that the run-time behaviors of such systems satisfy the pre-specified timing constraints under any circumstance. LÄS MER

  5. 5. Architectures and Protocols for Performance Improvements of Real-Time Networks

    Författare :Kristina Kunert; Magnus Jonsson; Elisabeth Uhlemann; Eduardo Tovar; Högskolan i Halmstad; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Real-time communication; predictable deadline guarantees; real-time scheduling analysis; timing analysis; admission control; deterministic medium access; MAC; Quality of Service parameters; reliability; redundancy; retransmission scheme; ARQ; truncated ARQ; Automatic Repeat Request; wireless networks; IEEE 802.11; IEEE 802.15.4; fibre-optic networks; AWG; multichannel networks; industrial communications; embedded systems; Computer engineering; Datorteknik;

    Sammanfattning : When designing architectures and protocols for data traffic requiring real-time services, one of the major design goals is to guarantee that traffic deadlines can be met. However, many real-time applications also have additional requirements such as high throughput, high reliability, or energy efficiency. LÄS MER