19th International Symposium on Computer Architecture and High Performance Computing (SBAC-PAD'07) 2007
DOI: 10.1109/sbac-pad.2007.22
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Exigency-based real-time scheduling policy to provide absolute QoS for web services

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Cited by 9 publications
(18 citation statements)
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“…This paper introduces a multi-resource scheduling policy for interactive computer systems aimed at guaranteeing QoS parameters formulated in terms of average response times. It extends the results of previous works [1] on singleprocessor environments to the case of a parallel heterogeneous cluster of resources. A comparison with other techniques reveals that the proposed method outperforms conventionally employed alternatives and can offer better average response times for interactive computer systems.…”
Section: Introductionsupporting
confidence: 78%
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“…This paper introduces a multi-resource scheduling policy for interactive computer systems aimed at guaranteeing QoS parameters formulated in terms of average response times. It extends the results of previous works [1] on singleprocessor environments to the case of a parallel heterogeneous cluster of resources. A comparison with other techniques reveals that the proposed method outperforms conventionally employed alternatives and can offer better average response times for interactive computer systems.…”
Section: Introductionsupporting
confidence: 78%
“…The study also brings an analysis of the properties of the USF policy -already studied for single-resource environments [1] -for the case of clusters or heterogeneous parallel resources. Simulation results have shown that, for the upper-bounded average response time problem and the environment conditions assumed in this investigation, the referred policy can cope with higher workloads better than other classical algorithms analyzed also in multi-resource problems.…”
Section: Discussionmentioning
confidence: 99%
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“…A política EBS (Casagrande et al, 2007a), a qual realiza o escalonamento de requisições Web em sistemas Soft-RT não-determinísticos, conforme apresentado na Seção 2.1.2, provê garantias de QoS absoluta em nível de aplicação.…”
Section: Ebs: Exigency Based Schedulingunclassified
“…Arquitetura EBS (Casagrande et al, 2007b) utiliza estratétiga escalonamento realimentado (feedback): A cada ciclo de escalonamento, o algoritmo calcula quanto tempo cada requisição pode aguardar para ser executada (deadline), de modo que essa espera não cause um aumento excessivo no TMR do respectivo usuário. O deadline é utilizado pelo escalonador para tomar a decisão sobre a próxima requisição a ser atendida.…”
Section: Política De Escalonamento Ebsunclassified