how can understand number of vcpu that i have assign to a vm are more than request for example if i assign more vcpus to a vm more than expected that performance will be decrease how can understand had to decrease the vcpus ?
I believe the articles below could help you:
Setting the number of cores per CPU in a virtual machine (1010184) - VMware Knowledge Base
Virtual Machine Sizing: 3 Mistakes To Avoid - https://www.networkcomputing.com/cloud-infrastructure/virtual-machine-sizing-3-mistakes-avoid/885581...
I recommend to check the following: How to decide VMware vCPU to physical CPU ratio
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You could run a 60 day trial of vRealize Operation (Advanced)
This will give you a tone of data around optimizing allocation vs demand.
Is that necessary use application monitoring for determine that or i can use vCenter monitoring in a period time ?
actually i want to know can we say one of the reason for low performance on my vm is assign more vcpu than needed
would you please say me what parameter or object will be show in VROPS that help me to realize i have assigned vcpus more than needed ?