CLI to change the number of processors assigned to guest vm

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• How to change the number of processors / cores

  I have virtual machines that I have to move periodically between 3 computers main host that I use:

  1 Intel Core 2 Quad CPU with Windows 7 Home Premium 64 - bit - 1 processor with 4 cores

  2 Intel Core i7-2630QM CPU with Windows 7 Home Premium 64 bit - 1 processor with 4 cores

  3 Intel Core 2 Duo T7700 CPU VT with Windows XP 64 bits - 1 processor with 2 hearts

  Hosts running VMWare workstation 7.

  Most of my virtual machines running XP 32 bit and have been initially created for my 3 platform.

  When I move my machines between computers I see that the parameters of the Virtual Machine for my change of processor in (for me)
  in unpredictable ways. Sometimes it shows 1 processor and gives me a choice of up to 4 cores.
  in other cases (always on a 4 base platform) 1 single processor with 1 core, in other cases, with 1 core 2 processors.

  In most cases, my freedom of choice is limited, because the selection of the number of cores is grayed out.

  When I try to make changes by editing the vmx file, I find them ineffective (no change).

  The other problem I think is that my VMs run VERY SLOWLY on my i7 with 8 GB platform!
  I have no idea if this is related to the improper setting of the number of processores / cores (I'm not able to define
  1-4-hearts and spin with settingsd 1.1 instead).

  Could someone please help me understand how:

  1. check / change the number of processors / threads on an existing virtual machine.

  2. how to set properly for an i7 processor

  Thanks in advance,

  Andrew

  1. providers that create virtual machines are in a race - they assume that customers use this version which proposes to use the virtual processors more ;-)
  For some workloads inside a virtual machine - say Oracle or other database and applications servers such that it is sometimes really good idea to use more than one virtual processor

  2. virtual machines to scale differently with more CPU than the real computers.
  Virtual machines are for host applications.
  This means that the host schedules the time CPU to each virtual machine.
  If you follow this thought that you will see that a virtual machine that uses one virtual processor has a greater chance to run then a VM with 2 virtual processors.
  A VM with 4 cores running on a host with 4 cores will spend a lot of wait time - it may work only when the host reports the application of Workstation 4 hearts are available.

  A virtual machine with only 1 vCPU will probably be able to run all the time without any waiting time.
  This is why usually with a single CPU VMs feel better to the needs of the user.

  This translates into the best practical advice: assign a CPU unless you really notice you need more.

  3. probably, you try to change the values, while the virtual machine is suspended?

  4.
  numvcpus = '8 '.
  cpuid.coresPerSocket = "4".

  We hear two processors with 4 cores of each

  numvcpus = "4".
  cpuid.coresPerSocket = "4".

  means a processors with 4 cores

  numvcpus = '2 '.
  cpuid.coresPerSocket = '1 '.

  We hear two processors with a carrot

  No effect? n ' mind that not all clients can use 2 or more processors
  For example, XP is limited in this respect.
  Some guests may also not change the number of CPUS after what they have been installed

• Cannot change the number of processors present on the drive

  Hello

  I am a new user but have searched the forums and FAQS and can't find the answer.

  I have VMWare Workstation Player version 12 for Linux.  Host is 23 Fedora on a processor quad-core i5 with 8 GB of RAM.  Guest operating system is Windows 7.  It's for personal use, so I don't have a license key.

  The question I have, is that several parameters is not editable, especially the number of processors. The selection is grayed out and set to 1.  In addition, the hard drive and display settings (graphics card) cannot be changed either.

  I tried both with the virtual machine off and with it works.  Doesn't make a difference, the settings are grayed out.

  I searched everywhere for an explanation, but have not found a clue.  Help, please!

  Thank you

  DW

  The settings are grayed out when:
  -the virtual machine is running
  -the virtual machine is suspended
  -l' virtual computer runs in background

  If poweroff the virtual machine with a full stop of the guest.
  If it still does not - check if you are the owner of the vmx file

• Change the number of virtual processors on VM

  Hello

  I have ESXi 4.0 update1 and a number of virtual machines on it.

  As you may know, there is a warning saying "Change in the number of virtual processors after installation of operating system guest can make your virtual machine unstable." When you open the properties of the VM to change hardware settings.

  However, I have a few virtual machines that I change the number of viftual UC sometimes (increase and decrease) and haven't noticed any problems.

  All my VMs are Microsoft Windows 2003/2008/XPs.

  Someone know that changing the number of virtual processors has no negative impact or not?

  I appreciate your help.

  Depending on the configuration of your operating system, this can be harmful. WIndows not the component of ACPI, which must always be configured as uni or multi processor (windows detects usually it and change automatically, I really don't know the trigger to make it not happen, but sometimes it isn't). Also for example, Linux kernel can be compiled without SMP (multi processor support), in order to have several processors can cause the virtual machine to run slowly.

  You may not notice any changes in your virtual machines, and I really think that you are not running on SMP issues. But if you want to check in the Device Manager, you can check if your ACPI is United or multi processor and change it properly.

  Marcelo Soares

  VMWare Certified Professional 310/410

  Master virtualization technology

  Globant Argentina

  Review the allocation of points for "useful" or "right" answers.

• What is the number of processors and maximum memory options in MSCONFIG?

  MSCONFIG (START)... Who can tell me what that? !!
   
  http://www.HTPC-reviews.com/wp-content/uploads/2012/08/speedup_windows7.jpg

  This photo... It's the MSCONFIG window

  64-bit Windows 7

  who can tell me what is 'exactly' the real role of:

  -Number of processors
  -Maximum memory

  because

  I have i7 with 8 processors and when I chose (number of processors) 8 processors, that nothing has changed! It's same as 0.
  and I have 6 GB of ram and when I chose (maximum memory) = 6 GB, nothing has changed, but became 5 GB in the Task Manager!

  What is - c!

  can someone help me please!

   
  Hello
   
  These options to limit the use of processors and memory to the specified value. If you want windows to use all available processors and memory, you must leave two options not controlled.
  When the number of processors option is set to zero, Windows will use all available processors.
  If you recently changed the processors, this may help: http://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/howto-get-windows-7-to-detect-your-new-multi-core/71519d51-f6cb-47df-b3ff-66c2928d6de4
   
   

  Hope this information is useful.

• VMware vSphere 4 licenses essential question and the number of processors

  Hi all

  I have a question about the Essentials of VMware vSphere 4.1 license. We have a client interested in a VMware vSphere Essentials license. The machine runs on 2 x processor Xeon 5675 6 c. Now I read somewhere that there was a limitation of the number of processors that can be used with the edition of Essentials. If I remember correctly, the number of physical sockets is limited to 2, but I remember that there is another limit, but I could not find the document describing and wonder:

  Is there a limitation on the maximum number of 4 cores on one physical processor that can or will be used by VMware vSphere 4.1 Essentials or there is a limitation on the number of 4 vCPU that can be assigned to a guest?

  I would like to know because if this is a limitation on the number of vCPU that can be assigned to a customer that would not be a problem because we have no guests in need of vCPU, then 2 more, but if this is a limitation on the number of cores that would be used by VMware vSphere Essentials, it would be a waste of money to buy a 6-Core ;-)

  Hello.

  2 taken with 3 guests, 6 hearts and SMP 4 lanes for virtual machines.

  These limitations are available at: http://www.vmware.com/products/vsphere/buy/small_business_editions_comparison.html

  Good luck!

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  vrmcw wrote:

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