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Identifying the location of performance bottlenecks is a non-trivial challenge when scaling n-tier applications in computing clouds. Specifically, we observed that an n-tier application may experience significant performance loss when there are transient bottlenecks in component servers. Such transient bottlenecks arise frequently at high resource utilization and often result from transient events...
Identifying the location of performance bottlenecks is a non-trivial challenge when scaling n-tier applications in computing clouds. Specifically, we observed that an n-tier application may experience significant performance loss when bottlenecks alternate rapidly between component servers. Such rapidly alternating bottlenecks arise naturally and often from resource dependencies in an n-tier system...
High resource utilization is an important goal in achieving high return on investment in cloud environments. Guaranteed quality of service (QoS) is an important goal for web-facing applications such as e-commerce. Achieving both high utilization and high QoS simultaneously is a significant challenge, since high utilization often implies more QoS failures such as long response times. In this paper,...
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