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Execution-Time Properties of a Hybrid Controller

Cervin, Anton LU ; Eker, Johan LU and Persson, Patrik (2000) In Report TFRT 7591.
Abstract
We are interested in gaining more knowledge about the execution-time requirements of real-time control tasks, and this paper presents a system for gathering statistics of the execution times of real-time tasks. The system allows real-time code to be instrumented in order to gather, analyze, and present execution-time statistics. It has been used to instrument an existing hybrid controller to gather execution-time statistics. These statistics indicate that the worst-case execution times of the controller occur in conjunction with reference and mode changes, and that a scheduling based on that worst-case execution time leads to poor CPU utilization.
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author
organization
publishing date
type
Book/Report
publication status
published
subject
in
Report TFRT
volume
7591
publisher
Department of Automatic Control, Lund Institute of Technology (LTH)
ISSN
0280-5316
language
English
LU publication?
yes
id
0c7df8dd-3b26-48ad-8e2d-ef2174d25553 (old id 8602706)
date added to LUP
2016-02-15 19:08:02
date last changed
2016-04-16 05:17:51
@techreport{0c7df8dd-3b26-48ad-8e2d-ef2174d25553,
  abstract     = {We are interested in gaining more knowledge about the execution-time requirements of real-time control tasks, and this paper presents a system for gathering statistics of the execution times of real-time tasks. The system allows real-time code to be instrumented in order to gather, analyze, and present execution-time statistics. It has been used to instrument an existing hybrid controller to gather execution-time statistics. These statistics indicate that the worst-case execution times of the controller occur in conjunction with reference and mode changes, and that a scheduling based on that worst-case execution time leads to poor CPU utilization.},
  author       = {Cervin, Anton and Eker, Johan and Persson, Patrik},
  institution  = {Department of Automatic Control, Lund Institute of Technology (LTH)},
  issn         = {0280-5316},
  language     = {eng},
  series       = {Report TFRT},
  title        = {Execution-Time Properties of a Hybrid Controller},
  volume       = {7591},
  year         = {2000},
}