Paper Abstract and Keywords |
Presentation |
2015-09-25 13:30
DBMS Performance Improvement based on Dynamic VM Memory Allocation Masaki Sakamoto, Saneyasu Yamaguchi (Kogakuin Univ.) DE2015-27 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In virtualized environment, several computers run on a physical computer. Many of virtualization systems have a ballooning function with which memory allocation size for a virtual machine can be dynamically changed without restarting the virtual machine. Thus, it is expected that performance of an applications in a virtual machine can be improved by dynamic optimization of the virtual machine memory size. Xen also has a ballooning function, which is called xenballoon. It takes account of only memories consumed by processes and does not consider page cache memory size. Therefore, I/O performance improvement cannot be expected with this ballooning fiction. In this paper, we focus on Xen virtualized environment and DBMS, and discuss a method for improving I/O performance by dynamic optimization of memory allocation size of virtual machines. First, we investigate relation among virtual machine memory size, page cache hit ratio in the guest OS, and DBMS performance. Then, we show that leading cache hit ratio to a target ratio, which is not 100%, is effective in DBMS performance improvement. Second, we propose a method for improving DBMS performance based on cache hit ratio. Third, we evaluate our prosed method with TPC-C, which is a popular DBMS benchmark specification, and demonstrate that our method can improve DBMS performance by dynamic tuning of virtual machine memory size. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
balloon / virtual machine / Xen / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 115, no. 230, DE2015-27, pp. 41-46, Sept. 2015. |
Paper # |
DE2015-27 |
Date of Issue |
2015-09-17 (DE) |
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) |
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DE2015-27 |
Conference Information |
Committee |
DE |
Conference Date |
2015-09-24 - 2015-09-25 |
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(See Japanese page) |
Place (in English) |
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Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Data Engineering and Food Media |
Paper Information |
Registration To |
DE |
Conference Code |
2015-09-DE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
DBMS Performance Improvement based on Dynamic VM Memory Allocation |
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balloon |
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virtual machine |
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Xen |
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1st Author's Name |
Masaki Sakamoto |
1st Author's Affiliation |
Kogakuin University (Kogakuin Univ.) |
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Saneyasu Yamaguchi |
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Kogakuin University (Kogakuin Univ.) |
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Speaker |
Author-1 |
Date Time |
2015-09-25 13:30:00 |
Presentation Time |
30 minutes |
Registration for |
DE |
Paper # |
DE2015-27 |
Volume (vol) |
vol.115 |
Number (no) |
no.230 |
Page |
pp.41-46 |
#Pages |
6 |
Date of Issue |
2015-09-17 (DE) |
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