Presentation 2009-11-20
Design of Upper Limit Function of Protected Area and Buffer Migration Function for a Directory Oriented Buffer Cache Mechanism
Toshihiro TABATA, Akiyoshi TSUCHIYA, Katsuyasu YAMADA, Hideo TANIGUCHI,
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Abstract(in English) Noticing that application programs handle files as a unit of input and output, we proposed a Directory Oriented Buffer Cache Mechanism. The proposed mechanism gives a high priority to important directories, which are associated with important jobs. Files in the important directories are given a high priority, and its blocks files are cached with the high priority. The proposed mechanism makes processing of important jobs frequently faster. However, the proposed mechanism degrades the performance of the processing in some cases due to three problems of it. This paper describes the three problems of the proposed mechanism. Then, this paper describes upper limit function of protected area and buffer migration function that solve the three problems.
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Keyword(in English) Buffer Cache / File / Directory / Operating System
Paper # CPSY2009-42
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Committee CPSY
Conference Date 2009/11/13(1days)
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Registration To Computer Systems (CPSY)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Design of Upper Limit Function of Protected Area and Buffer Migration Function for a Directory Oriented Buffer Cache Mechanism
Sub Title (in English)
Keyword(1) Buffer Cache
Keyword(2) File
Keyword(3) Directory
Keyword(4) Operating System
1st Author's Name Toshihiro TABATA
1st Author's Affiliation Graduate School of Natural Science and Technology, Okayama University()
2nd Author's Name Akiyoshi TSUCHIYA
2nd Author's Affiliation School of Engineering, Okayama University
3rd Author's Name Katsuyasu YAMADA
3rd Author's Affiliation School of Engineering, Okayama University
4th Author's Name Hideo TANIGUCHI
4th Author's Affiliation Graduate School of Natural Science and Technology, Okayama University
Date 2009-11-20
Paper # CPSY2009-42
Volume (vol) vol.109
Number (no) 296
Page pp.pp.-
#Pages 6
Date of Issue