Re: Add more CPU dosent affect performance
How many VMs / vCPUs are you running on the host? How many physical CPU cores does the host have? It sounds like ESXi having trouble scheduling CPU resources. If you're seeing high wait times that might be the case.
> The host is Quad CPU so it has 4 cores. It's running 5 VM. How to best check if the wait time is high ? What the difference between CPU wait and CPU Ready time ?
Are you looking to dedicate a CPU core to a vCPU?
Too see if this improve performance (Vm that runs many small Perl scripts)
It'll depend on your scenario. A reservation guarantees that your VM will get the resources it needs. Shares impact how much resources a VM will get when a resource is low. If you have plenty of CPU shares don't play a role.
> What i am trying to achive is to get better performance from my VM that is running all these Perl scripts. I wont it to respond faster and reduce amount of time it takes.