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vSphere High Performance Essentials by Christian Stankowic

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Identifying performance bottlenecks

In this section, we will focus on some common performance issues and how to identify them with vCenter Server statistics.

Example use case 1 – CPU bottlenecks

Most performance issues are based on inappropriate CPU configurations. In this example, a VM is equipped with one vCPU consuming all of its resources. This can be seen easily when accessing the real-time summary for the workload, as shown in the following:

Example use case 1 – CPU bottlenecks

Also, vCenter Server generated an alarm for this abnormal consumption of CPU resources. To fix this issue, the vCPU amount was extended to two. After running, the application is still not perming well as ...

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