Cart (Loading....) | Create Account
Close category search window
 

Multi-granularity resource reservations

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Saewong, S. ; Real-time & Multimedia Syst. Lab., Carnegie Mellon Univ., Pittsburgh, PA ; Ragunathan, R.

Resource reservation has been recently supported by many real-time operating systems to provide applications with guaranteed and timely access to system resources. Typically, reservations are based on the worst-case requirements, and therefore can inflate resource demands unnecessarily. Many multimedia applications such as MPEG video streams (1) have high worst-case to average-case demand ratio and (2) can tolerate some deadline misses. To support such applications, we propose a "multi-granularity" reservation model. Instead of the classical {C, T, D} model of resource reservation, the multi-granular reserve specification is given by {{C,T,D},...,{Cx, epsixTi},...,{Cy, epsiyT i}} which represents a guarantee of the highest-granularity reserve for C units of resource during every successive periodic interval of T only as long as the resource usage by each of its low-granularity reserves (e.g., Cx units of resource in every recurring time of epsixTi, epsix isin Z+) is maintained. This multi-granular reservation approach delivers higher system utilization than the pessimistic strategy of worst-case reservation and better temporal isolation than other stochastic and heuristic guarantees in the literature. We perform a detailed schedulability analysis of this model using deadline-monotonic scheduling and derive an appropriate admission control test. We also present detailed analyses and simulation results comparing our reservation scheme for MPEG-4 streams with average-case resource reservation, constant bandwidth server (CBS), and (m, k)-firm guarantee

Published in:

Real-Time Systems Symposium, 2005. RTSS 2005. 26th IEEE International

Date of Conference:

8-8 Dec. 2005

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.