NDLI: Stabilizing execution time of user processes by bottom half scheduling in Linux

Content Provider	IEEE Xplore Digital Library
Author	Kyong Jo Jung Seok Gan Jung Chanik Park
Copyright Year	2004
Description	Author affiliation: Syst. Software Lab., Pohang Univ. of Sci. & Technol., Kyungbuk, South Korea (Kyong Jo Jung; Seok Gan Jung; Chanik Park)
Abstract	The CPU time allocated to user processes is rendered inaccurate by an unexpectedly and frequently occurring interrupt and a bottom half that consumes most interrupt processing time. Additionally, when the time consumed in the kernel mode greatly fluctuates with interrupt processing, the scheduler cannot distribute CPU time to user processes normally. This problem can dramatically distort the stable execution time of user processes. In addition, such time-sensitive applications as multimedia players cannot provide consistent quality. To overcome this stolen-time problem, we propose a bottom half scheduling approach that dynamically restricts the maximum time consumed by bottom halves. In this paper, we implement our proposed scheme in Linux 2.4. In addition, we show that the fluctuation of CPU time allocated to user processes by stolen-time can be shrunk with our proposed scheme by means of experiments using a multimedia application.
Sponsorship	Euromicro
Starting Page	71
Ending Page	78
File Size	582380
Page Count	8
File Format	PDF
ISBN	0769521762
ISSN	10683070
DOI	10.1109/EMRTS.2004.1311005
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-07-02
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Linux Application software Real time systems Operating systems Hardware Telecommunication traffic Motion pictures Delay effects Gallium nitride System software
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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