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Paper Abstract and Keywords
Presentation 2023-09-08 14:45
Loop Processing Performance in Kotlin and Java
Hayataka Nakamura (Kogakuin Univ.), Takeshi Kamiyama (Nagasaki Univ.), Masato Oguchi (Ochanomizu Univ.), Saneyasu Yamaguchi (Kogakuin Univ.) NS2023-65
Abstract (in Japanese) (See Japanese page) 
(in English) We evaluated the performance of Kotlin and Java programs, and thereafter, proposed a method to improve the performance of programs written in both of these languages. We executed micro-benchmarking of loop processing, such as for and while statements that constitute the fundamental functions of programming languages. The results indicated that the performance depends on the description methods even for the same semantics and the equal number of iterations. The performance can be classified into two groups: fast and slow. Performance was studied using two popular JVM implementations, and performance classifications occurred in both JVM implementations. Small differences in the bytecode yield variations in the JIT compiler behavior, thereby creating nonsmall performance variations. We proposed a method to improve the performance of Kotlin and Java programs by modifying the bytecodes in the slow-group to those in the fast-group. We evaluated the performance of the proposed method and demonstrated that it can improve the performance of the programs with the description methods in the slow-group to the same level as that obtained with the description methods in the fast-group.
Keyword (in Japanese) (See Japanese page) 
(in English) Java / Kotlin / JVM / Java Virtual Machine / Java Bytecode / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 177, NS2023-65, pp. 77-82, Sept. 2023.
Paper # NS2023-65 
Date of Issue 2023-08-31 (NS) 
ISSN 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 NS2023-65

Conference Information
Committee NS IN CS NV  
Conference Date 2023-09-07 - 2023-09-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Session management (SIP/IMS), Interoperability/Standardization, NGN/NwGN/Future networks, Cloud/Data center networks, SDN (OpenFlow, etc.)/NFV, IPv6, Machine learning, etc. 
Paper Information
Registration To NS 
Conference Code 2023-09-NS-IN-CS-NV 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Loop Processing Performance in Kotlin and Java 
Sub Title (in English)  
Keyword(1) Java  
Keyword(2) Kotlin  
Keyword(3) JVM  
Keyword(4) Java Virtual Machine  
Keyword(5) Java Bytecode  
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Keyword(8)  
1st Author's Name Hayataka Nakamura  
1st Author's Affiliation Kogakuin University of Technology & Engineering (Kogakuin Univ.)
2nd Author's Name Takeshi Kamiyama  
2nd Author's Affiliation Nagasaki University (Nagasaki Univ.)
3rd Author's Name Masato Oguchi  
3rd Author's Affiliation Ochanomizu University (Ochanomizu Univ.)
4th Author's Name Saneyasu Yamaguchi  
4th Author's Affiliation Kogakuin University of Technology & Engineering (Kogakuin Univ.)
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Speaker Author-1 
Date Time 2023-09-08 14:45:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2023-65 
Volume (vol) vol.123 
Number (no) no.177 
Page pp.77-82 
#Pages 6 
Date of Issue 2023-08-31 (NS) 

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