Installation guide

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VMware ESX Server Administration Guide
Using ESX Server Resource Variables
The majority of this chapter describes the different parameters you can use to
optimize resources on ESX Server. We include information on the various algorithms
and policies ESX Server uses to determine resource allocation.
Note: In the next section, we provide a practical description of resource
optimization, based on the behavior of ESX Server and its virtual machines. We
provide some general guidelines on deciding what resource variables to optimize and
other general tips to improve performance on ESX Server.
This chapter contains the following:
• Improving Performance on page 386
• CPU Resource Management on page 388
• Allocating CPU Resources on page 388
• Admission Control Policy on page 389
• Specifying Minimum and Maximum CPU Percentages on page 389
• Using Proportional-share Scheduling by Allocating Shares on page 391
• Managing CPU Time with Percentages and Shares on page 392
• Managing Virtual Machine CPU Resources on page 394
• Managing CPU Resources from the Management Interface on page 394
• Managing CPU Resources from the Service Console on page 395
• Memory Resource Management on page 403
• Allocating Memory Resources on page 403
• Admission Control Policy on page 405
• Allocating Memory Dynamically on page 406
• Reclaiming Memory from Virtual Machines on page 407
• Sharing Memory Across Virtual Machines on page 408
• Managing Virtual Machine Memory on page 410
• Managing Memory Resources from the Management Interface on page 410
• Managing Memory Resources from the Service Console on page 411
• Using Your NUMA System on page 418
• NUMA Configuration Information on page 418