VMware Cloud Community
redhot4400
Enthusiast
Enthusiast

Does vSphere uses CPU core dynamically?

Hello Everybody,

Currently using a Esxi 6.7 on a core i5 (6th gen) desktop pc where 4 core and 8 logical processor are there with 16 GB RAM.

Problem happened when going to use more than 3 VMs!

Does vSphere uses CPU core dynamically Or, the core which is selected for a VM is dedicated when the VM is online?

Thanks in Advance

redhot4400

1 Reply
IRIX201110141
Champion
Champion

The cores are divided in time slices so at a given time a logical CPU is always dedicated to a VM.  The VM needs to wait until the hypervisor find a free CPU and this becomes more challange when having more VMs which have multibple vCPUs. So more VMs with only 1 vCPU can be run smoother than less VMs with high vCPU count on a Host/Socket.

Regards,

Joerg