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VMWare, changing CPUs
I have a 2 socket Intel machine with 8 cores per socket
For experimentation purposes, I want to run the most cores as possible on the VM
The Edit Settings of my VM under CPUs has the following CPUs set
How can I set this to configure to push the maximum amount of cores possible to the VM
Does a single vCPU or core have to be left for the hypervisor ?
For experimentation purposes, I want to run the most cores as possible on the VM
The Edit Settings of my VM under CPUs has the following CPUs set
Number of virtual sockets: 1
Number of cores per socket: 1
Total number of cores: 1
How can I set this to configure to push the maximum amount of cores possible to the VM
Does a single vCPU or core have to be left for the hypervisor ?
Microsoft ApplicationsVMware
Last Comment
Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
What vSphere license do you have?
the maximum number of CPUs you will be able to allocate based on licensing is 8. Unless you have Enterprise Plus, and you could allocate 32.
ASKER
So if I get the Enterprise plus, Could I assign 16 cores, or would I have to save one for the Hypervisor
you could assign 32 CPUs to a VM.
But you still need to have the correct Windows license, for Windows to be able to use them all, otherwise the processors will NOT be used.
But you still need to have the correct Windows license, for Windows to be able to use them all, otherwise the processors will NOT be used.
the hypervisor reserves processor usage for itself. so you will be able to allocate all.
ASKER
you could assign 32 CPUs to a VM.
So On a 16 core machine, I can allocate 32 vCPU
Is that because Intel is double threaded?
that would depend on how many physical cores, physical processors, hyperthreading you havevavailable on the physical host.
ASKER
On a 2 socket, 16 core (8 core per socket) machine with Hyper-threading enabled, how many vCPU's can I allocate
in the summary page what does it state?
?? x CPUs?
and does your VM Guest OS support 32 processors?
?? x CPUs?
and does your VM Guest OS support 32 processors?
ASKER
The Host summary says I have 16 CPUS, and the guest OS (RHEL) can support 16 or 32 Cores)
So does that mean the most I can assign to this machine is 16 vCPU (or can I assign 32 since the cores are double threaded)
So does that mean the most I can assign to this machine is 16 vCPU (or can I assign 32 since the cores are double threaded)
16 vCPUs
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The Max could be 8 CPUs.
But you need to make sure your host OS is licensed to support those CPUs.