Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Accounting for Interrupts in Multiprocessor Real-Time Systems Bjorn B. Brandenburg, Hennadiy Leontyev, and James H. Anderson
 

Summary: Accounting for Interrupts in Multiprocessor Real-Time Systems
Bjšorn B. Brandenburg, Hennadiy Leontyev, and James H. Anderson
The University of North Carolina at Chapel Hill
Abstract
The importance of accounting for interrupts in multiproces-
sor real-time schedulability analsysis is discussed. Three in-
terrupt accounting methods, two of which are newly described
here, are analyzed and compared.
1 Introduction
System overheads such as time lost to task switches and
scheduling decisions must be accounted for in real-time sys-
tems if temporal correctness is to be guaranteed [12, 24]. Of
these overheads, interrupts are notoriously troublesome for
real-time systems since they are not subject to scheduling and
can significantly delay real-time tasks.
In work on uniprocessor real-time systems, methods have
been developed to account for interrupts under the two most-
commonly considered real-time scheduling policies: un-
der static-priority scheduling, interrupts can be analyzed as
higher-priority tasks [24], and under earliest-deadline-first

  

Source: Anderson, James - Department of Computer Science, University of North Carolina at Chapel Hill

 

Collections: Computer Technologies and Information Sciences