Advanced Resource Management

This chapter discusses some advanced resource management topics. It includes conceptual information and a discussion of the advanced parameters you can set. In most situations, you do not need to use the advanced settings and using the advanced settings incorrectly might be detrimental to your system’s performance. However, experienced administrators might find these advanced configuration options helpful for fine tuning the performance of the ESX Server environment.

 

Note Licenses for DRS and HA are not required for any of the topics and tasks discussed in this chapter.

This chapter discusses the following topics:

•	CPU Virtualization

•	Using CPU Affinity to Assign Virtual Machines to Specific Processors

•	Multicore Processors

•	Hyperthreading

•	Memory Virtualization

•	Understanding Memory Overhead

•	Memory Allocation and Idle Memory Tax

•	How ESX Server Hosts Reclaim Memory

•	Sharing Memory Across Virtual Machines

•	Advanced Attributes and What They Do