Solved

VMWare, Changing vCPU's

Posted on 2012-03-12
4
371 Views
Last Modified: 2012-08-13
In VMWare v5, I have the following set on my VM->Edit Settings->CPUs

Number of virtual sockets:     1

Number of cores per socket:  1

Total number of cores:            1

Open in new window


I have a machine with 16 cores.

How can I allocate this to my VM (or do I have to leave one core for the VM)
0
Comment
Question by:Los Angeles1
4 Comments
 
LVL 120

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE^2)
Andrew Hancock (VMware vExpert / EE MVE^2) earned 125 total points
ID: 37710364
normally you would use 1 vCPU (in the VM) to one of your Cores.

How many processors (CPUs) do you want to allocate to the VM.

if only 1, just allocate 1.
0
 
LVL 8

Assisted Solution

by:Elmar-H
Elmar-H earned 125 total points
ID: 37710366
shutdown vm and add more cores. but you will need to modify the HAL if you have only 1 core installed bevore.
0
 
LVL 14

Assisted Solution

by:RickEpnet
RickEpnet earned 125 total points
ID: 37710370
Best to give one CPU and one Core if that is not enough you can start to increase by 1 core or you could add a CPU.
0
 
LVL 40

Accepted Solution

by:
coolsport00 earned 125 total points
ID: 37710625
UNLESS the app or OS *requires* more vCPU by it's system requirements, you typically only need to configure 1 vCPU for a VM as noted by the others above. If you allocate more CPU than the OS/app needs, you can run into performance degregation on the VM. See this CPU Scheduler whitepaper for more info:
http://www.vmware.com/files/pdf/techpaper/VMW_vSphere41_cpu_schedule_ESX.pdf

~coolsport00
0

Featured Post

Creating Instructional Tutorials  

For Any Use & On Any Platform

Contextual Guidance at the moment of need helps your employees/users adopt software o& achieve even the most complex tasks instantly. Boost knowledge retention, software adoption & employee engagement with easy solution.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
New Relic 3 53
Xendesktop MCS 11 27
Outlook & Word 2016 - Emoji in AutoCorrect screwed up 31 55
Moving VMs from ESX 4.1 to ESXI 6 1 20
In this article, I will show you HOW TO: Create your first Windows Virtual Machine on a VMware vSphere Hypervisor 6.5 (ESXi 6.5) Host Server, the Windows OS we will install is Windows Server 2016.
Having trouble getting your hands on Dynamics 365 Field Service or Project Service trial? Worry No More!!!
Teach the user how to install log collectors and how to configure ESXi 5.5 for remote logging Open console session and mount vCenter Server installer: Install vSphere Core Dump Collector: Install vSphere Syslog Collector: Open vSphere Client: Config…
This tutorial will walk an individual through the steps necessary to enable the VMware\Hyper-V licensed feature of Backup Exec 2012. In addition, how to add a VMware server and configure a backup job. The first step is to acquire the necessary licen…

685 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