Unique use of VM CPU on the system dual quad core CPU

My environment: two machines, a Dell 2950 with dual quad core CPU, running ESX 4.0 Advanced.

Machine 1 to several virtual machines on it.

Machine 2 has a virtual machine that hosts a .NET/IIS web application built by an external supplier. The web application is having performance issues (users requests take a long time to complete in some cases). I suspect, without having yet done an in-depth, analysis is that the web application is not well resolved/optimized/designed.

The declared owner of hardware requirements is exactly how Machine 2 is - dual quad core CPU. However - There's the rub: I did not understand if a single virtual machine running on this computer can actually use all the resources, particularly CPU resources, on the machine. And my application provider takes that position - since we have not met the minimum hardware requirements for the application, which can be the cause of the poor performance, which means that the seller has no responsibility for the performance issue.

I tried to understand/consider the Enterprise more than vSphere edition, because it seems possible that only this version of vSphere would allow me to assign all the hearts of all the processors from the server to the computer virtual one. However, this seems like overkill, and also, after some reading on the SMP of Enterprise Plus features, it seems, as using SMP can help in some cases and poorly in others.

Right now I'm looking to remove vmware Machine 2 and just install the application on the machine, in order to eliminate the possibility that vmware restricts the application to all physical resources (CPU). But I thought I'd ask a glimpse of this group first.

Any input appreciated.

Thank you

Brad Harding

Each physical core (or "core" hyperthreading) is considered to be one vCPU. You will therefore 8 vCPUs in your system (assuming hyperthreading is not enabled). However, you can approve vCPU which means that you can run several virtual machines than available vCPUs. This is because you do not usually have the VMs that need all the power of the processor, and they can be used more efficiently with VMware planning the vCPUs.

André

Tags: VMware

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