NDLI: Access pattern based stream buffer management scheme for portable media players

Content Provider	IEEE Xplore Digital Library
Author	Heejin Ahn Seongjin Cho Hyunik Na Hwansoo Han
Copyright Year	1975
Abstract	Limited amount of main memories are often available on mobile phones and portable media players. In multitasking environments, however, programs often need to wait for pages to be loaded to the main memory, even for the pages once loaded but swapped out due to memory shortage. Such page fault mechanism provided by the operating system often becomes the main hindrance to the uninterrupted playback of multimedia players on portable electronic devices. In this paper, we propose a memory management scheme that helps multimedia players perform with a consistent quality, when other processes are concurrently running on memory limited environments. We devise a profile-based memory allocation scheme for multimedia stream buffers with the adoption of page prefetching and pinning. Using periodic monitoring points of main loops, we profile access patterns of memory, analyze the meaningful access patterns for stream buffers and provide the access pattern information for custom memory management. Our scheme helped reduce the number of page faults in heap. Reductions in page faults for a multimedia player are 60~80% under various memory-limited execution environments.
Sponsorship	IEEE Consumer Electronics Society
File Size	1178615
File Format	PDF
ISSN	00983063
Volume Number	55
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Portable media players Streaming media Memory management Mobile handsets Multitasking Operating systems Multimedia systems Environmental management Quality management Prefetching portable media player access pattern-based memory management stream buffer access pattern
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Media Technology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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