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Paper Abstract and Keywords
Presentation 2009-07-31 14:10
Markovian Software Performability Modeling with User-Perceived Performance Degradation
Koichi Tokuno, Shigeru Yamada (Tottori Univ.) R2009-25
Abstract (in Japanese) (See Japanese page) 
(in English) This paper constructs the software performability model with performance degradation. We assume that the software system has two operational states from the viewpoint of the end users: one is operating with the desirable performance level according to specification and the other is with degraded performance level. The time-dependent behavior of the system alternating between up and down states is described by the Markovian software availability model with performance degradation. Assuming that the arrival process of the tasks follows a nonhomogeneous Poisson process, we analyze the distribution of the number of tasks whose processes can be completed with the infinite server queueing model, and derive several software performability measures considering the real-time property. Finally, we illustrate several numerical examples of the measures to investigate the impact of consideration of the performance degradation on the system performability evaluation.
Keyword (in Japanese) (See Japanese page) 
(in English) Performability / Performance degradation / Real-time property / Infinite-server queueing model / Software availability model / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 161, R2009-25, pp. 17-22, July 2009.
Paper # R2009-25 
Date of Issue 2009-07-24 (R) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF R2009-25

Conference Information
Committee R  
Conference Date 2009-07-31 - 2009-07-31 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To R 
Conference Code 2009-07-R 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Markovian Software Performability Modeling with User-Perceived Performance Degradation 
Sub Title (in English)  
Keyword(1) Performability  
Keyword(2) Performance degradation  
Keyword(3) Real-time property  
Keyword(4) Infinite-server queueing model  
Keyword(5) Software availability model  
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1st Author's Name Koichi Tokuno  
1st Author's Affiliation Tottori University (Tottori Univ.)
2nd Author's Name Shigeru Yamada  
2nd Author's Affiliation Tottori University (Tottori Univ.)
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Speaker Author-1 
Date Time 2009-07-31 14:10:00 
Presentation Time 20 minutes 
Registration for R 
Paper # R2009-25 
Volume (vol) vol.109 
Number (no) no.161 
Page pp.17-22 
#Pages 6 
Date of Issue 2009-07-24 (R) 

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