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Virtualization allows us to consolidate multiple servers onto a single physical machine, saving infrastructure cost. Yet, consolidation can lead to performance degradation, jeopardizing Service Level Agreement (SLA). In this paper, we analyze and identify the factors to the performance degradation due to consolidation — that is the wait time and the ready time. The wait time is the queuing time caused...
We propose a dynamic mechanism, thread count adaptation, that adjusts the thread counts that are allocated to services for adapting to CPU requirement variations in SMP environments. Our goal is to increase the maximum throughput available on a system that has multiple dynamic content services while meeting different service time criteria for these services in dynamic workloads. Our challenge is to...
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