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Journal Articles Revue des Sciences et Technologies de l'Information - Série TSI : Technique et Science Informatiques Year : 2008

Optimisation des E/S avec QoS dans les environnements multi-applicatif distribués

Abstract

Scientific applications which mainly exploit non sequential accesses are more and more affected by I/O performance. In the meantime, as cluster usage grows, several applications are often executed concurrently, competing for access to storage subsystems and, thus, potentially canceling optimisations brought by Parallel I/O libraries. This article addresses the issue of disjoint accesses generated by different concurrent applications in a cluster. In such a context, good trade-off has to be assessed between performance, fairness and response time. To achieve this, an I/O scheduling algorithm together with a "requests aggregator" that considers both application access patterns and global system load, have been designed and merged into a new generic framework pluggable into any I/O file system layer.

Domains

Other [cs.OH]

Dates and versions

hal-00691382 , version 1 (26-04-2012)

Identifiers

Cite

Adrien Lebre, Guillaume Huard, Yves Denneulin. Optimisation des E/S avec QoS dans les environnements multi-applicatif distribués. Revue des Sciences et Technologies de l'Information - Série TSI : Technique et Science Informatiques, 2008, 27 (3-4), pp.265-291. ⟨10.3166/tsi.27.265-291⟩. ⟨hal-00691382⟩
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