While nothing stops you from using a default installation of any OS or software package in a virtualized environment, you may find it difficult to maintain consistent levels of performance in Horizon environments where many of the resources are shared, and, in almost every case, oversubscribed in some manner. In this section, we will examine a sample of the CPU and disk I/O resources that could be recovered were you to optimize the master virtual desktop image.
Due to the technological diversity that exists from one organization to the next, optimizing your master virtual desktop image is not an exact science. The optimization techniques used and their end results will likely vary from one organization to the next, due to factors unrelated to Horizon or vSphere.