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

zhengzucheng
2024-09-14T02:15:51Z

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'/>