Faculty Profiles - NOMURA Yoshinari

MISC - NOMURA Yoshinari

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Mailing List System Mash-up with Web Services

藤原啓輔, 乃村能成, 谷口秀夫

情報処理学会研究報告(CD-ROM) 2009 ( 4 ) 2009

B-032 A Method of Executing Linux FD Driver as a Process for AnT Operating System

Shimazaki Yutaka, Taniguchi Hideo, Tabata Toshihiro, Nomura Yoshinari

7 ( 1 ) 179 - 180 2008.8

S/W Scheduling for H/W Scheduler Based on Continuation Model

MORIYAMA HIDEAKI, TANIGUCHI HIDEO, NOMURA YOSHINARI

IPSJ SIG Notes 109 ( 77(OS-109) ) 109 - 116 2008.8

Language：Japanese Publisher：Information Processing Society of Japan (IPSJ)

In a fine grain multi-thread environment based on continuation model, H/W scheduler takes dependency among threads as continuation order. In such environment, execution of service requires scheduling of many thread-groups by S/W. In addition, reduction of scheduling overhead is important so that a large number of fine-grain threads repeat generation and extinction regularly. In this paper, we focus on continuation that is dependency among threads, and show effective S/W scheduling method for reduction of scheduling overhead based on continuation flow.

Evaluation of Transmission Packet Monitor on TwinOS

AWATA Yuichi, NOMURA Yoshinari, TANIGUCHI Hideo

IPSJ SIG Notes 108 ( 35(OS-108) ) 179 - 186 2008.4

Language：Japanese Publisher：Information Processing Society of Japan (IPSJ)

Recently, illegal attacks to OSs are increasing. A lot of intruder detection method have been proposed. In this paper, we propose a method for monitoring communication using TwinOS. TwinOS runs two Linux on a single PC, and has a virtual NIC that provides one Linux with the other Linux's NIC. Our proposed method monitors one Linux's transmission from the other Linux via virtual NIC, and keep intruders away from log files. In addition, as basic evaluation, evaluated influence on communication performance by the implementation of the monitor.

A Method for Control of Driver Program Invocation based on Device Operation History on AnT Operation System

TAKIGUCHI Shinichi, NOMURA Yoshinari, TABATA Toshihiro, TANIGUCHI Hideo

IEICE technical report 107 ( 559 ) 43 - 48 2008.3

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

Recently, operating systems have become increasingly multi-functional by the providing of various devices. Its functions are provided as driver programs. Even though average users do not use all functions, they do not customize and shrink their operating systems because of its job difficulty. Accordingly, they usually use wasteful and fat operating systems: much memory, slow down bootup time. In this paper, we propose an effective method for controlling invocation timing of device driver programs. As a strategy for the control, we use operation history on device drivers. And we present this design on AnT operating system.

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A Method for Control of Driver Program Invocation based on Device Operation History on AnT Operating System

TAKIGUCHI Shinichi, NOMURA Yoshinari, TABATA Toshihiro, TANIGUCHI Hideo

IEICE technical report 107 ( 558 ) 43 - 48 2008.3

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

D-10-14 Transmittion Packet Monitoring on TwinOS

Awata Yuichi, Nomura Yoshinari, Taniguchi Hideo

Proceedings of the IEICE General Conference 2008 ( 1 ) 173 - 173 2008.3

Dynamic OS Server Replacement Scheme for AnT

藤原康行, 岡本幸大, 田端利宏, 乃村能成, 谷口秀夫

情報処理学会シンポジウム論文集 2008 ( 14 ) 201 - 206 2008

I/O Buffer Cache Mechanism Based on Use Frequency of File

片上達也, 田端利宏, 谷口秀夫, 渡辺弘志, 乃村能成

情報処理学会研究報告 2008 ( 35(OS-108) ) 115 - 122 2008

Language：Japanese Publisher：Information Processing Society of Japan (IPSJ)

Most operating systems manage a buffer cache for I/O processing by a block unit. On the other hand, application programs handle a data from a viewpoint of files. I/O buffer cache mechanism considered this difference is effective to execute I/O processing efficiently because I/O processing is slower than CPU processing. In this paper, we describe I/O buffer cache mechanism that decides blocks protected based on use frequency of file of application programs.

A Method for Control of Driver Program Invocation based on Device Operation History on AnT Operating System

滝口真一, 乃村能成, 田端利宏, 谷口秀夫

情報処理学会研究報告 2008 ( 32(SLDM-134 EMB-8) ) 43 - 48 2008

Language：Japanese Publisher：Information Processing Society of Japan (IPSJ)

継続の流れを効率的に制御するS/Wスケジュール法

森山英明, 谷口秀夫, 乃村能成

電気・情報関連学会中国支部連合大会講演論文集(CD-ROM) 59th 2008

Desktop Bookmark: an Evaluation of Method for Save and Load of Desktop Contexts

小笠原良, 乃村能成, 谷口秀夫

情報処理学会シンポジウムシリーズ(CD-ROM) 2008 ( 1 ) 2008

ファイルの格納ディレクトリを考慮したバッファキャッシュ制御法の実現と評価

田端利宏, 小峠みゆき, 乃村能成, 谷口秀夫

電子情報通信学会論文誌 D J91-D ( 2 ) 2008

Performance Improvement of Network Filtering on TwinOS

NOMURA Yoshinari, YAMAMOTO Yu-ma, TANIGUCHI Hideo

IEICE technical report 107 ( 17 ) 19 - 24 2007.4

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

As an application of TwinOS system, we are developing a network packet filtering scheme. one sibling OS of the TwinOS provides a pseudo NIC hardware for the other OS and performs packet filtering in the middle of it. To improve the performance of the packet filtering scheme, we propose a method for CPU evacuation of idle OS and several possible efficient methods for packet disposal.

A Process Scheduling Mechanism for Fine Grain Multithread Architecture Based on Actual Thread Behavior

NOMURA YOSHINARI, OGAWA YASUHIKO, KUSAKABE SHIGERU, TANIGUCHI HIDEO, AMAMIYA MAKOTO

IPSJ SIG Notes 105 ( 36(OS-105) ) 15 - 22 2007.4

Language：Japanese Publisher：Information Processing Society of Japan (IPSJ)

Microprocessors based on the fine grain multithread architecture are characterized by its thread level parallelism. It essentially generates a large number of threads in a second. Therefore, it is very difficult to schedule all the threads effectively by a conventional software process scheduler. In this paper, we propose a cost-effective process scheduling method suitable for the fine grain multithread architecture based on actual thread behavior.

A method for run-time updating of network device drivers

TANAKA Hiroyuki, NOMURA Yoshinari, TANIGUCHI Hideo

情報処理学会研究報告 2007 ( 27 ) 13 - 18 2007.3

Language：Japanese Publisher：Information Processing Society of Japan (IPSJ)

Run-time updating of software component is a key technology for non-stop systems. We have already proposed a method for updating running user processes, however that method could not be applied to operating systems. In this paper, we propose a new method for run-time updating of network device driver, which provides context migration from an old driver to updated one. This paper also describes requirements for our method and a basic design built on the FreeBSD operating system.

A method for run-time updating of network device drivers

TANAKA Hiroyuki, NOMURA Yoshinari, TANIGUCHI Hideo

IEICE technical report 106 ( 603 ) 13 - 18 2007.3

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

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D-3-6 Startup of Device Driver Process by Hardware Detection for AnT