VM with multiple vCPU - How to aggregate ?

[mizio79]

Hello everyone !!

I'm new on this forum and thanks in advice for the....

I've on my enterprise a three-cluster DC, divided by purpose, with about 400 VM's with an average allocation of 4 vCPU (min 1 vCPU - max 8 vCPU).

What's the best "aggregation" policy about vCPU ?

- small vm with big vm

- small vm with small vm & big vm with big vm

Thanks a lot.

Bye

[jrmunday]

Hi mizio79mizio79,

Welcome to the forums!

I'm not sure there is a one size fits all recommendation for this type of scenario, so it would make sense to understand the workloads (including trends) and balance them where you are servicing the CPU cycles without impacting other guest VM's (take note of NUMA layout).

Use the performance counters to help you with this task (specifically looking at CPU utilisation and %RDY time).

Cheers,

Jon