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Stay-Away, protecting sensitive applications from performance interference Rameshan, Navaneeth Navarro Moldes, Leandro Monte Moreno, Enrique Vlassov, Vladimir Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions Universitat Politècnica de Catalunya. CNDS - Xarxes de Computadors i Sistemes Distribuïts Universitat Politècnica de Catalunya. VEU - Grup de Tractament de la Parla Àrees temàtiques de la UPC::Informàtica::Sistemes d'informació Àrees temàtiques de la UPC::Informàtica::Enginyeria del software Software engineering Computer software -- Development Metrics—complexity measures Performance measures Performance interference Interference mitigation Performance sensitivity Quality of Service Virtualization Enginyeria de programari Programari -- Desenvolupament While co-locating virtual machines improves utilization in resource shared environments, the resulting performance interference between VMs is difficult to model or predict. QoS sensitive applications can suffer from resource co-location with other less short-term resource sensitive or batch applications. The common practice of overprovisioning resources helps to avoid performance interference and guarantee QoS but leads to low machine utilization. Recent work that relies on static approaches suffer from practical limitations due to assumptions such as a priori knowledge of application behaviour and workload. To address these limitations, we present Stay-Away, a generic and adaptive mechanism to mitigate the detrimental effects of performance interference on sensitive applications when co-located with batch applications. Our mechanism complements the allocation decisions of resource schedulers by continuously learning the favourable and unfavourable states of co-execution and mapping them to a state-space representation. Trajectories in this representation are used to predict and prevent any transition towards interference of sensitive applications by proactively throttling the execution of batch applications. The representation also doubles as a template to prevent violations in the future execution of the repeatable sensitive application when co-located with other batch applications. Experimental results with realistic applications show that it is possible to guarantee a high level of QoS for latency sensitive applications while also improving machine utilization. Peer Reviewed Postprint (published version) 2014 Conference report Rameshan, N. [et al.]. Stay-Away, protecting sensitive applications from performance interference. A: ACM/IFIP/USENIX International Middleware Conference. "Middleware'14: 15th International Middleware Conference: Bordeaux, France: December 08-12, 2014". Bordeaux: Association for Computing Machinery (ACM), 2014, p. 301-312. 978-1-4503-2785-5 https://hdl.handle.net/2117/27787 10.1145/2663165.2663327 eng http://doi.acm.org/10.1145/2663165.2663327 http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Restricted access - publisher's policy Attribution-NonCommercial-NoDerivs 3.0 Spain 12 p. application/pdf Association for Computing Machinery (ACM)