we have 5.5 esxi u2 . there are 6 vms on esxi host. esxi host has 2x10 cpu so 40 vcpu.on esxi all VMs has 52 vcpu.
one vm has 32 vcpu and cpu ready %15. 100% CPU usage (as shown in the guest linux OS) but vrealize says everytime %50-60 usage.
vm has bad performans. Can i learn all your advice ? why os cpu is %100 and vrealize says 20 vcpu is enough ?
Reducing the number of CPUs also reduces the CPU usage of the operating system ?? For example, 40-50%