measure

I'm a bit confused regarding "Disk IO" graph (per VM) in Proxmox. The different thread where this topic is discussed concludes that: which indicates to me that it's a total amount of data written/read in a particular window of time. So, from what I understand, it's a total written/read and not...

I have installed proxmox on vmware, Iam going to measure the watt usage of proxmox. So I've tried by powerstat tool, it shown me like a picture below. I need your help to solve this case, who undestand please help me ???