Re: [Question] sched：the load is unbalanced in the VM overcommitment scenario

[zhengzucheng <zhengzucheng@huawei.com>]

在 2024/9/14 1:17, Waiman Long 写道:
> you don't actually need to use 2 different cpusets if they all get the 
> same set of CPUs and memory nodes

Yes, you're right. The purpose of setting two different cpusets is to 
simulate the scenario of two VMs.

each cpuset is a VM.

For example, the VM configuration is as follows:

<domain type='kvm' id='12676'>
   <name>master</name>
   <vcpu placement='static' cpuset='0-3,80-83'>8</vcpu>
   <iothreads>1</iothreads>
   <iothreadids>
     <iothread id='1'/>
   </iothreadids>
   <cputune>
     <vcpupin vcpu='0' cpuset='0-3,80-83'/>
     <vcpupin vcpu='1' cpuset='0-3,80-83'/>
     <vcpupin vcpu='2' cpuset='0-3,80-83'/>
     <vcpupin vcpu='3' cpuset='0-3,80-83'/>
     <vcpupin vcpu='4' cpuset='0-3,80-83'/>
     <vcpupin vcpu='5' cpuset='0-3,80-83'/>
     <vcpupin vcpu='6' cpuset='0-3,80-83'/>
     <vcpupin vcpu='7' cpuset='0-3,80-83'/>
     <emulatorpin cpuset='0-79'/>
   </cputune>
   <numatune>
     <memory mode='strict' nodeset='0'/>
     <memnode cellid='0' mode='strict' nodeset='0'/>
   </numatune>