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vSphere High Performance Essentials by Christian Stankowic

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The vCPU design approaches

In this section, we will focus on a couple of things to keep in mind when designing vCPU configurations. First of all, when changing the vCPU settings, make sure to check the guest operating system's and application's licensing notices; various application's SKUs are limited to a maximum amount of CPU sockets.

Basically, vSphere allows setting the number of virtual sockets that are independent of cores per socket. This can be useful when running guest operating systems that are hard-limited to an amount of sockets (for example, four sockets). Instead of assigning eight vCPUs with one core per socket, it is possible to assign four vCPUs with two cores per socket in order to serve more CPU resources while still observing ...

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