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Optimizing Preemption-Overhead Accounting in Multiprocessor Real-Time Systems

Fulltext:


Authors:

Bryan Ward , Abhilash Thekkilakattil, James Anderson

Publication Type:

Conference/Workshop Paper

Venue:

The 22nd International Conference on Real-Time Networks and Systems


Abstract

There exist two general techniques to account for preemption-related overheads on multiprocessors. This paper presents a new preemption-related overhead accounting technique, called analytical redistribution of preemption overheads (ARPO), which integrates the two previous techniques to minimize preemption-overhead related utilization loss. ARPO is applicable under any job level fixed priority (JLFP) preemptive scheduler, as well as some limited-preemption schedulers. ARPO is evaluated in a new experimental-design framework for overhead-aware schedulability studies that addresses unrealistic simplifying assumptions made in previous studies, and is shown to improve real-time schedulability.

Bibtex

@inproceedings{Ward3652,
author = {Bryan Ward and Abhilash Thekkilakattil and James Anderson},
title = {Optimizing Preemption-Overhead Accounting in Multiprocessor Real-Time Systems},
month = {October},
year = {2014},
booktitle = {The 22nd International Conference on Real-Time Networks and Systems},
url = {http://www.es.mdu.se/publications/3652-}
}