Hi,
Can someone please shed some light and explain why certain VM's when very busy peak at almost 10% RDY even though there is no CPU over provisioning on the host.
I expect the host to provide CPU time to the VM almost instantly when requested in above scenario irrespective of how busy the VM is.
I would like to technically understand why this happens and what measures should be taken please?
Thanks
The % ready is for the entire vm, are you at one vm, then you want to divide that number by 16 which is small.
How many cpus are the vms you are referring to?
How big are the hosts?
Whats the biggest vm you have?
16 vCPU VMs
44 Physical CPU
Biggest VM has 16 vCPU
Total vCPU = pCPU
The % ready is for the entire vm, are you at one vm, then you want to divide that number by 16 which is small.
So always need to divide with number of vCPU and check that lower than 5% ?
Good to know if so as do not think this is normally stated clearly enough unless you can refer me to any documentation
btw am using esxtop and V to check this metric
Yeah, I asked this a year ago, read some of the links