'Worst case execution time' diaporamas de présentation

Using the UML Profile for Schedulability, Performance and Time

Using the UML Profile for Schedulability, Performance and Time. Bruce Powel Douglass, Ph.D. Chief Evangelist I-Logix, Inc. www.ilogix.com bpd@ilogix.com. About the Author. 20++ years in safety-critical hard-real time systems

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Scheduling policies for real-time embedded systems

Scheduling policies for real-time embedded systems. Scheduling Policies in RT systems. Two general categories fixed or static scheduling policies dynamic scheduling policies Many commercial RTOSs today support fixed priority scheduling policies

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The Migration of Safety-Critical RT Software to Multicore

The Migration of Safety-Critical RT Software to Multicore. Marco Caccamo University of Illinois at Urbana-Champaign. Outline. Motivation Memory -centric scheduling theory Background: PRedictable Execution Model (PREM) Multicore memory-centric scheduling

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SEng 5861: Software Architecture

SEng 5861: Software Architecture. Lecture 5 Dr. Michael Whalen. Topics for Today. Questions / Comments from Last Week ATAM artifacts from last week Project Pitches If there is time: Real-Time Systems Concepts Architecture Description Languages AADL. Real-Time Architecture Modeling.

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CS244-Introduction to Embedded Systems and Ubiquitous Computing

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Abstract RTOS Modelling for Multi-Processor SoC using SystemC

Abstract RTOS Modelling for Multi-Processor SoC using SystemC. Prof. Jan Madsen Informatics and Mathematical Modelling Technical University of Denmark Richard Petersens Plads, Building 321 DK2800 Lyngby, Denmark. 3. 2. 1. 4. 1. 2. 3. 4. os. mapping. a. b. c. c. a. b.

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Real-time concepts

Real-time concepts. Lin Zhong ELEC424, Fall 2010. Real time. Correctness Logical correctness Timing Hard vs. Soft Hard: lateness is intolerable Pass/Fail courses Soft: lateness can be tolerated but penalized Regular courses. Non real-time. Soft real-time. Hard real-time.

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BFair: An Optimal Scheduler for Periodic Real-Time Tasks

BFair: An Optimal Scheduler for Periodic Real-Time Tasks. Hang Su The University of Texas at San Antonio http://www.cs.utsa.edu/~hsu/. September 14, 2011. Roadmap of This Talk. Introduction Task and system models Traditional scheduling algorithms

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Applying Static WCET Analysis to Automotive Communication Software

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Dakai Zhu, Rami Melhem, and Bruce Childers Presented by Xuan Qi

Scheduling with Dynamic Voltage/Speed Adjustment Using Slack Reclamation in Multi-Processor Real-Time Systems. Dakai Zhu, Rami Melhem, and Bruce Childers Presented by Xuan Qi. Power is a Big Issue!!!. Microsoft data center at San Antonio: the biggest customer of CPS energy Sensor networks

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The performance of Micro-Kernel Based Systems H. Haertig, M.Hohmuth, J.Liedtke, S.Schoenberg, J.Wolter Presented By: Ch

The performance of Micro-Kernel Based Systems H. Haertig, M.Hohmuth, J.Liedtke, S.Schoenberg, J.Wolter Presented By: Chandana Kannatintavida. Outline of the Paper. Introduction. Overview Of L4. Design and Implementation Of Linux Server. Evaluating Compatibility Performance.

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A Numerical Abstract Domain based on Expression Abstraction + Max Operator with Application in Timing Analysis

A Numerical Abstract Domain based on Expression Abstraction + Max Operator with Application in Timing Analysis . Bhargav Gulavani (IIT Bombay, India). Sumit Gulwani (MSR Redmond). TexPoint fonts used in EMF. Read the TexPoint manual before you delete this box.: A A. Outline.

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A Numerical Abstract Domain based on Expression Abstraction + Max Operator with Application in Timing Analysis

A Numerical Abstract Domain based on Expression Abstraction + Max Operator with Application in Timing Analysis . Bhargav Gulavani (IIT Bombay, India). Sumit Gulwani (MSR Redmond). TexPoint fonts used in EMF. Read the TexPoint manual before you delete this box.: A A. Outline.

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Quicksort

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???? (Discrete Mathematics) ? ????? ??? (Algorithm Complexity). 2014 ? ??? ????? ??????? ???. Our focus. What is Algorithm Complexity?. Algorithm Complexity. The algorithmic complexity of a computation is some measure of how difficult it is to perform the computation.

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CprE 458/558: Real-Time Systems

CprE 458/558: Real-Time Systems. (m, k)-firm tasks and QoS enhancement. (m, k) firm real-time tasks. A periodic task is said to have an (m,k)-firm guarantee if it is adequate to meet the deadlines of m out of k consecutive instances of the task, where m ? k.

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EE249 Discussion Paper Review Haiyang Zheng 11/19/2002

Holistic Scheduling and Analysis of Mixed Time/Event-Triggered Distributed Embedded System Traian Pop, Petru Eles, Zebo Peng. EE249 Discussion Paper Review Haiyang Zheng 11/19/2002. Introduction. Embedded systems are usually hard real-time applications.

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Energy-efficient Multi-tier Web Server Clusters

Daniel Mosse. Energy-efficient Multi-tier Web Server Clusters. Introduction. Practical use of power control of multi-tier clusters Application: e-commerce or other datacenter usages Goal: meet deadlines AND minimize energy Open software and commodity hardward. Cluster Model.

231 views • 9 slides