You can run the following command to query the virtualization type of an ECS:
lscpu
If the value of Hypervisor vendor is Xen, the ECS uses Xen. If KVM is required, perform the operations in this section to optimize the Linux private image.
If the ECS uses KVM, you are also advised to optimize the private image to prevent any exceptions with the ECSs created from the image.
Figure 1 Viewing the virtualization type of a Linux ECS
