'Priority assignment' presentation slideshows

Scheduling

Scheduling. Goal To understand the role that scheduling and schedulability analysis plays in predicting that real-time applications meet their deadlines Topics Simple process model The cyclic executive approach Process-based scheduling Utilization-based schedulability tests

1.23k views • 106 slides

Scheduling

Scheduling. Goal To understand the role that scheduling and schedulability analysis plays in predicting that real-time applications meet their deadlines Topics Simple process model The cyclic executive approach Process-based scheduling Utilization-based schedulability tests

1.07k views • 106 slides

Scheduling

Scheduling. Goal To understand the role that scheduling and schedulability analysis plays in predicting that real-time applications meet their deadlines Topics Simple process model The cyclic executive approach Process-based scheduling Utilization-based schedulability tests

1.06k views • 105 slides

1.08k views • 82 slides

903 views • 76 slides

Achieving Qualities

Achieving Qualities. Architectural Tactics . A tactic is a design decision that influences the control of a quality attribute response. A collection of tactics is called an architectural strategy. A system design is a collection of decisions Some ensure achievement of the system functionality

755 views • 58 slides

Real-Time Systems Lecture 1: Introduction

Real-Time Systems Lecture 1: Introduction. Course Outline. Design Methodologies Scheduling Theory Schedulability Analysis Real-Time Scheduling Algorithms Verification. References. Book: Jane W.S. Liu, Real-Time Systems , 2000, Prentice Hall (Pub.). Outline.

1.62k views • 47 slides

Software Synthesis part-II

454 views • 32 slides

Predictable Scheduling for a Soft Modem

477 views • 31 slides

Predictable Scheduling for a Soft Modem

423 views • 31 slides

378 views • 26 slides

Optimization of Real-Time Systems with Deadline Miss Ratio Constraints

298 views • 23 slides

Scheduling Algorithms for Multiprogramming in a Hard-Real-Time Environment

Scheduling Algorithms for Multiprogramming in a Hard-Real-Time Environment. C.L. Liu and James W. Layland. Presented by Pete Perlegos. Assumptions. The requests for all tasks for which hard deadlines exist are periodic, with constant interval between requests.

155 views • 15 slides

Recap from last time -I

Recap from last time -I. Given a system of periodic tasks : ? = {? 1 , ? 2 ,... ? n }; ? i = (T i , C i ) Schedule using static priorities (of the first kind ) Two approaches: partitioning Dhall (1977), Dhall & Liu (1979): min #-procs for given ?

205 views • 12 slides

Shared

Real-Time Unit (RTU) Functionality Centralised real-time scheduler in hardware Handles generic number of tasks and priorities Supports up to three processors (today) Microsecond granularity Total view of the system state (at any instant) Augmentations Processor Priority Assignment unit

165 views • 1 slides