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Systems Performance: Enterprise and the Cloud by Brendan Gregg

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11. Cloud Computing

The rise of cloud computing solves some problems in the field of performance while posing others. Clouds are commonly built upon virtualization technologies, allowing multiple operating system instances, or tenants, to share one physical server. This means that there can be resource contention: not just from other processes, as has been the norm in Unix, but also from other entire operating systems. Isolating the performance effects of each tenant is critical, as is identifying when poor performance is caused by other tenants.

This chapter discusses the performance of cloud computing environments and consists of three parts:

Background presents general cloud computing architecture and the performance implications thereof. ...

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