Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

VMware Host Resource Utilization

Posted on 2013-10-24
3
Medium Priority
?
455 Views
Last Modified: 2013-10-31
If I am allocated a total of 96GHz CPU from my cluster of hosts and I have 9 VM's configured with 2GHz/Dual Core.  Am I using 18GHz of my total or 36GHz of my total allocated CPU? Or does the extra cores use more memory?  

In other words how does adding cores affect the resources given to me?
0
Comment
Question by:bmclamb
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 27

Assisted Solution

by:Steve
Steve earned 940 total points
ID: 39600149
No. the VMCPU you assign to the VM doesn't limit the VM to a particular speed.
Your VMs will use as much CPU as the host can provide unless you have set CPU limitations in VMware.
If you add additional cores or upgrade the CPU, it just increases the priority/share of CPU time that particular VM gets.

Think of it as a group of people sharing a Playstation.
A higher CPU spec/number of cores assigned basically means you get more goes on the game than someone with a lower spec CPU/number of cores.

apologies if I've misunderstood, but it's not entirely clear what you want to know.

Disclaimer: I'm aware this is a huge oversimplification and its much more complicated than that. Many other experts are likely to pick several valid holes in this analogy...
0
 

Author Comment

by:bmclamb
ID: 39600928
Thank you totallytonto.  I just want to make sure I do not over-allocate my VM's when planning how many VM's I can have given the resources and cause performance issues.
0
 
LVL 27

Accepted Solution

by:
Steve earned 940 total points
ID: 39608477
at minimum you should allow sufficient disk/cpu/memory for all critical VMs to use their resources heavily at once, assuming you assign priorities to the VMs.

The less critical VMs can be provisioned to allow them to function but shouldn't be expected to be too harsh on their resources.
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this article, I will show you HOW TO: Install VMware Tools for Windows on a VMware Windows virtual machine on a VMware vSphere Hypervisor 6.5 (ESXi 6.5) Host Server, using the VMware Host Client. The virtual machine has Windows Server 2016 instal…
In this article, I am going to show you how to simulate a multi-site Lab environment on a single Hyper-V host. I use this method successfully in my own lab to simulate three fully routed global AD Sites on a Windows 10 Hyper-V host.
Teach the user how to configure vSphere clusters to support the VMware FT feature Open vSphere Web Client: Verify vSphere HA is enabled: Verify netowrking for vMotion and FT Logging is in place or create it: Turn On FT for a virtual machine: Verify …
This video shows you how easy it is to boot from ISO images for virtual machines with the ISO images stored on a local datastore on the ESXi host.

721 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question