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Paper Abstract and Keywords
Presentation 2020-10-12 10:15
Replay overhead reduction in Embedded Non-stop OS that using Trace Buffer
Nao Sugiyama, Shota Nakabeppu, Nobuyuki Yamasaki (Keio Univ.) CPSY2020-17 DC2020-17
Abstract (in Japanese) (See Japanese page) 
(in English) In an embedded system environment, it is necessary to keep safe the system from some problem. In particular, power supply trouble is a large problem that cause a large amount of overhead due to the loss of all data in the volatile module.
NS Favoruser the power supply backuped area of Responsive Multithreaded Processor (RMTP), that is a processor for embedded real-time system, and has the function to restartthe task at the clock level granularity when the power is turned on again.
However, the overhead of restarting the task by NS Favor is over 100k clock cycle, and there is a problem that it cannot be applied to a system that requires fine-grained control.
In this research, the power supply backed up module Trace Bufferwas redesigned in order to reduce the overhead of task restart of NS Favor. As a result, overhead of task restart is reduced to about 10%.
Keyword (in Japanese) (See Japanese page) 
(in English) embedded system / real-time / fault tolerance / / / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 188, CPSY2020-17, pp. 1-6, Oct. 2020.
Paper # CPSY2020-17 
Date of Issue 2020-10-05 (CPSY, DC) 
ISSN Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee DC CPSY IPSJ-ARC  
Conference Date 2020-10-12 - 2020-10-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Architecture, Computer Systems, Dependable Computing, etc. (HotSPA2020) 
Paper Information
Registration To CPSY 
Conference Code 2020-10-DC-CPSY-ARC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Replay overhead reduction in Embedded Non-stop OS that using Trace Buffer 
Sub Title (in English)  
Keyword(1) embedded system  
Keyword(2) real-time  
Keyword(3) fault tolerance  
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1st Author's Name Nao Sugiyama  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Shota Nakabeppu  
2nd Author's Affiliation Keio University (Keio Univ.)
3rd Author's Name Nobuyuki Yamasaki  
3rd Author's Affiliation Keio University (Keio Univ.)
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Speaker Author-1 
Date Time 2020-10-12 10:15:00 
Presentation Time 30 minutes 
Registration for CPSY 
Paper # CPSY2020-17, DC2020-17 
Volume (vol) vol.120 
Number (no) no.188(CPSY), no.189(DC) 
Page pp.1-6 
#Pages
Date of Issue 2020-10-05 (CPSY, DC) 


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