From official doc VMware:
the following vCPU:pCPU ratios can be considered a good starting point for a design:
o1:1 to 3:1 is not typically an issue
oWith 3:1 to 5:1, you might begin to see performance degradation
o6:1 or greater is often going to cause a significant problem for VM performance
I have found this script in VMware Community Site:
Foreach($esx in Get-VMHost){
$vCPU = Get-VM -Location $esx | Measure-Object -Property NumCpu -Sum | select -ExpandProperty Sum
$esx | Select Name,@{N=‘pCPU’;E={$_.NumCpu}},
@{N=‘vCPU’;E={$vCPU}},
@{N=‘Ratio’;E={[math]::Round($vCPU/$_.NumCpu,1)}}
}
Output is:
Name pCPU vCPU Ratio
—- —- —- —–
phesx01.pre.lab 16 26 1.6
