Managing object identity with less I/O operations

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dc.contributor.authorDe Almeida, Fabio Renato [UNESP]
dc.contributor.authorValencio, Carlos Roberto [UNESP]
dc.contributor.authorFerrizzi, Andre Cid [UNESP]
dc.contributor.authorTronco, Mario Luiz
dc.contributor.authorDe Souza, Rogeria Cristiane Gratao [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-27T11:27:18Z
dc.date.available2014-05-27T11:27:18Z
dc.date.issued2012-12-01
dc.description.abstractNon-conventional database management systems are used to achieve a better performance when dealing with complex data. One fundamental concept of these systems is object identity (OID). Two techniques can be used for the implementation of OIDs: physical or logical. A logical implementation of OIDs, based on an Indirection Table, is used by NuGeM, a multimedia data manager kernel which is described in this paper. NuGeM Indirection Table allows the relocation of all pages in a database. The proposed strategy modifies the workings of this table so that it is possible to reduce considerably the number of I/O operations during the request and release of pages containing objects and their OIDs. Tests show a reduction of 84% in reading operations and a 67% reduction in writing operations when pages are requested. Although no changes were observed in writing operations during the release of pages, a 100% of reduction in reading operations was obtained. © 2012 IEEE.en
dc.description.affiliationInstituto de Biociências, Letras e Ciências Exatas - São Paulo State University Departamento de Ciências de Computação e Estatística, São José do Rio Preto - SP
dc.description.affiliationEscola de Engenharia de São Carlos University of São Paulo (USP) Departamento de Engenharia Mecânica, São Carlos - SP
dc.description.affiliationUnespInstituto de Biociências, Letras e Ciências Exatas - São Paulo State University Departamento de Ciências de Computação e Estatística, São José do Rio Preto - SP
dc.format.extent213-218
dc.identifierhttp://dx.doi.org/10.1109/PDCAT.2012.91
dc.identifier.citationParallel and Distributed Computing, Applications and Technologies, PDCAT Proceedings, p. 213-218.
dc.identifier.doi10.1109/PDCAT.2012.91
dc.identifier.lattes4644812253875832
dc.identifier.orcid0000-0002-9325-3159
dc.identifier.scopus2-s2.0-84884667166
dc.identifier.urihttp://hdl.handle.net/11449/73828
dc.language.isoeng
dc.relation.ispartofParallel and Distributed Computing, Applications and Technologies, PDCAT Proceedings
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectb+ tree
dc.subjectcomplex data
dc.subjectdirect mapping
dc.subjecthashing
dc.subjectindirect mapping
dc.subjectindirection table
dc.subjectNuGeM
dc.subjectobject identifier
dc.subjectobject identity
dc.subjectoid
dc.subjectOODBMS
dc.titleManaging object identity with less I/O operationsen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.ieee.org/publications_standards/publications/rights/rights_policies.html
unesp.author.lattes4644812253875832[2]
unesp.author.orcid0000-0002-9325-3159[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt

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