Administration Guide › Managing Virtual Environments › Huawei GalaX › How to Manage Huawei SingleCLOUD Environments › Use Virtual Machine Management Operations › Resource Allocation Best Practices

Resource Allocation Best Practices

Specify resource allocation settings (reservation and limit) that are appropriate for the virtual machines in your Huawei SingleCLOUD environment.

The following guidelines can help you achieve better performance for your virtual infrastructure:

• Use reservations to specify the minimum acceptable amount of CPU or memory, not the amount that you want to have available. The host assigns more resources as available based on the estimated demand and the limit for your virtual machine. The amount of resources that are specified by a reservation does not change when you modify the environment, such as by adding or removing virtual machines.
• When specifying reservations for virtual machines, do not commit all resources. Plan to leave an appropriate portion unreserved, because when you move closer to reserving full system capacity, it becomes increasingly difficult to change reservations.