Total number of cores that can be Used

[sujeet]

Hii,
so i am creating an application which will create the VM through the "REST API's".
I am updating the details of the total and used space on HD and RAM on dashboard.
But for the "Cores" i am having problem.
Can anyone help in how many total number of cores which are available to use.
This is because i perform the validation of request before it goes to proxmox.If the available resources are not available then request is not submitted.

 

[dcsapak]

This depends largely on your hardware and the workload of the vms.

on a single vm, you can at most set the number of physical cores as virtuals cores (*2 if you have hyper-threading)

overall, you can use more cores than you physically have (called "overprovisioning") but how much depends on how much cpu your vms use

you can never have more performance than your physical host