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dc.contributor.authorPanneerselvam, John
dc.contributor.authorLiu, Lu
dc.contributor.authorLu, Yao
dc.contributor.authorAntonopoulos, Nikolaos
dc.date.accessioned2018-01-22T13:56:42Z
dc.date.available2018-01-22T13:56:42Z
dc.date.issued2018-01-02
dc.identifier.citationPanneerselvam, J. et al (2018) 'An investigation into the impacts of task-level behavioural heterogeneity upon energy efficiency in Cloud datacentres', Future Generation Computer Systems, Volume 83, June 2018, pp. 239-249. DOI: 10.1016/j.future.2017.12.064en
dc.identifier.issn0167739X
dc.identifier.doi10.1016/j.future.2017.12.064
dc.identifier.urihttp://hdl.handle.net/10545/622062
dc.description.abstractCloud datacentre resources and the arriving jobs are addressed to be exhibiting increased level of heterogeneity. A single Cloud job may encompass one to several number of tasks, such tasks usually exhibit increased level of behavioural heterogeneity though they belong to the same job. Such behavioural heterogeneity are usually evident among the level of resource consumption, resource intensiveness, task duration etc. These task behavioural heterogeneity within jobs impose various complications in achieving an effective energy efficient management of the Cloud jobs whilst processing them in the server resources. To this end, this paper investigates the impacts of the task level behavioural heterogeneity upon energy efficiency whilst the tasks within given jobs are executed in Cloud datacentres. Real-life Cloud trace logs have been investigated to exhibit the impacts of task heterogeneity from three different perspectives including the task execution trend and task termination pattern, the presence of few proportions of resource intensive and long running tasks within jobs. Furthermore, the energy implications of such straggling tasks within jobs have been empirically exhibited. Analysis conducted in this study demonstrates that Cloud jobs are extremely heterogeneous and tasks behave distinctly under different execution instances, and the presence of energy-aware long tail stragglers within jobs can significantly incur extravagant level of energy expenditures.
dc.description.sponsorshipN/Aen
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0167739X1731960Xen
dc.rightsArchived with thanks to Future Generation Computer Systemsen
dc.subjectEnergy-aware stragglersen
dc.subjectLong-tailsen
dc.subjectResource idlenessen
dc.subjectTask heterogeneityen
dc.titleAn investigation into the impacts of task-level behavioural heterogeneity upon energy efficiency in Cloud datacentres.en
dc.typeArticleen
dc.contributor.departmentUniversity of Derbyen
dc.contributor.departmentJiangsu University
dc.identifier.journalFuture Generation Computer Systemsen
dcterms.dateAccepted2017-12-29
refterms.dateFOA2019-01-02T00:00:00Z
html.description.abstractCloud datacentre resources and the arriving jobs are addressed to be exhibiting increased level of heterogeneity. A single Cloud job may encompass one to several number of tasks, such tasks usually exhibit increased level of behavioural heterogeneity though they belong to the same job. Such behavioural heterogeneity are usually evident among the level of resource consumption, resource intensiveness, task duration etc. These task behavioural heterogeneity within jobs impose various complications in achieving an effective energy efficient management of the Cloud jobs whilst processing them in the server resources. To this end, this paper investigates the impacts of the task level behavioural heterogeneity upon energy efficiency whilst the tasks within given jobs are executed in Cloud datacentres. Real-life Cloud trace logs have been investigated to exhibit the impacts of task heterogeneity from three different perspectives including the task execution trend and task termination pattern, the presence of few proportions of resource intensive and long running tasks within jobs. Furthermore, the energy implications of such straggling tasks within jobs have been empirically exhibited. Analysis conducted in this study demonstrates that Cloud jobs are extremely heterogeneous and tasks behave distinctly under different execution instances, and the presence of energy-aware long tail stragglers within jobs can significantly incur extravagant level of energy expenditures.


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