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Artigo Científico
Interference-aware Scheduling for Data-processing Frameworks in Container-based Clusters
AbstractWith the emergence of data-processing frameworks like Hadoop and Spark, a new concept of a cluster resource manager was necessary to deliver per-application containerwrapped on-demand resources with high scalability on a large scale. The container-based…
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Performance Evaluation of Container-Based Virtualization for High Performance Computing Environments
Abstract: The use of virtualization technologies in high performance computing (HPC) environments has traditionally been avoided due to their inherent performance overhead. However, with the rise of container-based virtualization implementations, such as Linux VServer, OpenVZ…
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A Performance Comparison of Container-Based Virtualization Systems for MapReduce Clusters
Abstract: Virtualization as a platform for resource-intensive applications, such as MapReduce (MR), has been the subject of many studies in the last years, as it has brought benefits such as better manageability, overall resource utilization,…
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Towards better manageability of database clusters on cloud computing platforms
Cloud computing (CC) has become a very popular computing model in the last decade, as it has proved to be a cost-effective alternative to large-scale computers hosted in conventional Information Technologies (IT) department. The ability…
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Green software development for multi-core architectures
Abstract: Advances in computer architecture to provide higher parallelism (e.g. hyper threading and multi-core) usually incur in higher complexity in software development. Applications should be designed to use efficiently the additional resources in order to…
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MPI-blastn and NCBI-TaxCollector: Improving metagenomic analysis with high performance classification and wide taxonomic attachment
Metagenomic sequencing technologies are advancing rapidly and the size of output data from high-throughput genetic sequencing has increased substantially over the years. This brings us to a scenario where advanced computational optimizations are requested to…
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A Performance Isolation Analysis of Disk-Intensive Workloads on Container-Based Clouds
Abstract: The popularity of Cloud computing due to the increasing number of customers has led Cloud providers to adopt resource-sharing solutions to meet growing demand for infrastructure resources. As the adoption of resource-sharing/consolidation in Cloud…
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On the Impact of Energy-Efficient Strategies in HPC Clusters
Energy-aware management strategies are a recent trend towards achieving energy-efficient computing in HPC clusters. One of the approaches behind those strategies is to apply energy-saving states on idle nodes, alternating them among different sleep states…
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Understanding performance interference in multi-tenant cloud databases and web applications
The number of e-commerce customers and database services in cloud computing platforms has grown increasingly, leading providers to adopt resource-sharing solutions to meet growing demand for infrastructure resources, such as processing and storage. Consolidating database…
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E-eco: Performance-aware energy-efficient cloud data center orchestration
The high energy consumption of data centers has been a recurring issue in recent research. In cloud environments, several techniques are being used that aim for energy efficiency, ranging from scaling the processors frequency, to the use of…
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