How do we limit VM CPU speed into certain MHz ?

There is no way to config CPU GHz for a VM.

~coolsport00

What you can do, however, is manage the CPU resources a VM uses. That does not manage speed, but it controls how much CPU can be used, which is more important. ... Thinkpads_User

oh ?

That's why, eventhough i set the option in Resources | CPU | Limit: to be max. 1.6 GHz but in the VM it still runs at 2.66 GHz ?

do i have to put that into the resource pool ?

Take a look at this article on limiting CPU resources

http://www.vmware.com/pdf/ESX2_CPU_Performance.pdf

... Thinkpads_User

Also, I see you are using the free version, and there may be limitations in the free version. I am not sure about that.
... Thinkpads_User

actually no, this is paid ESXi in VSphere Essentials

You can take a look at this article:

http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC&docType=kc&externalId=1004060&sliceId=1&docTypeID=DT_KB_1_1&dialogID=114546247&stateId=0 0 114544471

But it says you must be using ESX to do this. I don't know about ESXi. .... Thinkpads_User

If the link above does not work (too long), the section I read was:

Quote from VMware site "You can only increase the assigned CPU cycles on an ESX Server virtual machine. If this is a virtual machine running under any other product, there is no direct way of increasing its assigned CPU cycles."

... Thinkpads_User
 

Hi Could you please go through following URL, I hope it will clear your doubts.

http://www.yellow-bricks.com/2010/05/18/limiting-your-vcpu/