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    MORPHOSYS: efficient colocation of QoS-constrained workloads in the cloud

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    Date Issued
    2012
    Publisher Version
    10.1109/CCGrid.2012.44
    Author(s)
    Ishakian, Vatche
    Bestavros, Azer
    Kfoury, Assaf
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    Permanent Link
    https://hdl.handle.net/2144/40207
    Version
    First author draft
    Citation (published version)
    Vatche Ishakian, Azer Bestavros, Asaaf Kfoury. 2012. "MORPHOSYS: efficient colocation of QoS-Constrained workloads in the cloud." Proceedings of the 2012 12th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (ccgrid 2012). https://doi.org/10.1109/CCGrid.2012.44
    Abstract
    In hosting environments such as IaaS clouds, desirable application performance is usually guaranteed through the use of Service Level Agreements (SLAs), which specify minimal fractions of resource capacities that must be allocated for use for proper operation. Arbitrary colocation of applications with different SLAs on a single host may result in inefficient utilization of the host’s resources. In this paper, we propose that periodic resource allocation and consumption models be used for a more granular expression of SLAs. Our proposed SLA model has the salient feature that it exposes flexibilities that enable the IaaS provider to safely transform SLAs from one form to another for the purpose of achieving more efficient colocation. Towards that goal, we present MorphoSys: a framework for a service that allows the manipulation of SLAs to enable efficient colocation of workloads. We present results from extensive trace-driven simulations of colocated Video-on-Demand servers in a cloud setting. The results show that potentially-significant reduction in wasted resources (by as much as 60%) are possible using MorphoSys.
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    • CAS: Computer Science: Scholarly Papers [186]
    • BU Open Access Articles [3664]


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