In this chapter, we focused on guest operating system performance monitoring and tweaking possibilities. Now, we know which SCSI controllers and NIC types can assist us in achieving greater performance. Configuring storage in an efficient way is essential to optimize the throughput. You learned how to utilize datastore clusters and multiple SCSI controllers to meet these requirements. To check tweaking results, you learned how to benchmark VMs to measure storage and networking performance. To sum it up, you learned how to configure swapping to use dedicated storage and utilize large pages.