On the hyper-threading technology

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• How to disable the functionality of the hyper-threading technology

  How to disable the functionality of the hyper-threading technology

  Hello

  I put t know what BIOS you have, but generally you can activate or deactivate this option in the BIOS.

• How to enable hyper-threading technology on nehalem processor (series Xeon5500)?

  Hello

  I try to activate the hyper-threading technology on my new HP DL380 G6 ESX 3.5 servers, but even if it appears in the configuration as 'active' tab, no VM cannot detect.

  And Yes, it is enabled in the BIOS.

  Any ideas?

  raoulst

  Why a virtual machine it should detect? It is not presented to the virtual machine as a feature. It increases the planning on a vmkernel level options, but that's all.

  Duncan

  VMware communities user moderator | VCP | VCDX

  -

• Satellite A500 - is there a way to disable Hyper-Threading technology (HTT) technology?

  Is there a way to disable Hyper-Threading technology (HTT) technology?
  It's really bothering me with some applications...
  I can't find it in the bios... 1.5... He was in the bios earlier?... Is there a way to roll back...

  It is even possible...

  Post edited by: rekof

  Hello

  Hyper-Threading technology is supported by CPU and it of not possible to disable it, if this option is not available in the BIOS.

  See this Intel Info page:
  http://www.Intel.com/support/processors/Pentium4/sb/CS-017371.htm

  Welcome them

• How to disable the hyper-thread on U840 Satellite Ultrabook?

  I would like to know how to turn off hyper-thread on Ultrabook U840

  Does anyone have any suggestions?

  Thanks in advance for your suggestions :>

  Model Toshiba U840
  Processor number: i5-3317U
  http://Ark.Intel.com/products/65707

  Something like that is controlled by the BIOS and if that option exists, you might find in the BIOS settings.
  However, if its not available in the BIOS, you would be able to disable s Intel Hyper - Threading Technology

• H9-1350 impossible to activate the Hyper-V technology

  I just bought a new Phoenix h9-1350 HP Envy, running under Windows 8 64-bit on i7-3770. I want to activate the Hyper-V technology. I have looked at the BIOS settings and cannot see an option for Data Execution Prevention. According to other threads like this one to another desire with the same motherboard, it should be in respect of the security of the system. But all I see is the option for virtualization.

  Does anyone know if there is another way to turn on DEP? Do I need a BIOS update? The version I see is FOR_814.ROM V8.14

  TIA

  Hello

  You must run Windows 8 Pro and VT must be enabled in the bios.  Go to the Control Panel - programs and features, and then click Windows features turn on or off.  Check Hyper-V as it is not defined by default.  See the image below.

  

  Click OK, and then restart.

• Satellite R630 - how to disable hyper-threading technology

  Hi all

  I can't find the option in the bios to disable hyper-threading.
  There is an option "disable carrots", which translates as windows only showing 1 core in the Task Manager.
  But this isn't what I want.

  I do some supercomputers and my experience tells me that allowing the use of thread cache on its own gives me the best performance that have multiple threads share the caches by SMT.

  I have the newest BIOS (BIOS 1.60, THIS 1.40). Why Toshiba would prevent such an option.
  It is available in the R700 models?

  Cheers, Jim

  Hello

  What to say;
  It seems that the BIOS does not support this option and therefore you would not be able to disable the s CPU hyper-threading and I doubt you'd be able to disable this somewhere else.

  In my opinion, there is nothing to see

• How to enable the Hyper-V technology on hp pavilion model 17-e054ca

  Hello

  on the model of HP pavilion-17 - e054ca I upgraded win8 OEM Pro Win8.1

  I wanted to allow for hyper - v and to prepare the laptop for the clean system image backup

  I followed the steps below

  0 in active Bios virtualization

  1 deleted Norton

  2 installed Avast

  2 uninstalled ebay, neflix and other nonsense to screen Windows Metro

  3 went to Task Manager to see wat processeding are running (wanted to speed up the system)

  3.1 disabled Bluetooth process (should I really it works if I don't plan to use it?)

  4 license option Hyper-V

  system restarted showing that future added applying...

  then the system restarted again to stop forever on a black screen with hp logo

  I boot from the flash and auto repair-> option opportunity recovery disc start advance

  After only 5 minutes system started

  I check term windows and Hyper-V option is not impossible

  What is the true way of Hyper v impossible on hp pavilion model 17-e054ca with Win 8.1 Pro?

  Thank you

  Alex

  problem solved after update the Bluetooth driver

  See the link below

  http://h30434.www3.HP.com/T5/notebook-operating-systems-and-software/RALink-Bluetooth-driver-conflicts-with-Hyper-V-in-Windows-8/m-p/3366571/highlight/true#M171208

• Z360. How to disable hyper-threading technology

  How to disable hyperthreading on z360?

  Processor: Core i3 380 M 2.53 GHz,

  BIOS version: 35N23WW

  http://forums.Lenovo.com/T5/IdeaPad-Y-and-U-series-laptops/how-do-you-disable-hyperthreading-on-Y550...

• S12 - Nvidia - update the BIOS, Hyper Threading option

  Hello, any chance to see BIOS to enable - disable the Hyper Threading, s12 ion, other functional improvement options?

  Even on the possible s9 off HT in the bios...

  BIOS is the only way to enable or disable hyper threading.but do not hesitate to try this.

  http://www.Intel.com/support/processors/Pentium4/sb/CS-017371.htm#a

  Sorry, at this point, you have to wait for the update of the bios.

  (marking this thread as resolved)

• More physical cores vs less with hyper-threading

  I'm sure that this has been answered before, but is it better to have more physical cores, or I can get the same performance with half of the carrots but enable hyper-threading technology?  It is of course a discussion of type AMD vs Intel...

  Thank you!

  Hi friend

  Visualize this:

  You are in a supermarket and a bonehead out a checkbook to write a check.

  You have a gallon of milk and a $5 ticket in your hand.

  The Fund puts the first transaction on hold while the old lady wrote the check and treat your transaction. You go out, it ends by the check writer.

  That's the theory behind the HT. If a thread stops, it can perform a second thread on the same kernel. But the problem is that it can only manage a thread on any cycle, so it depends on inefficiencies in executing 'slide in this teaching of the second.'

  Now, imagine that the grocery store stops take control. Efficiency is increased, the main thread has more effective, but it is less likely for this second operation to occur. If you wait longer with your milk.

  Would you rather have a cashier multitasking or more open channels? If the company is light in the store and transactions are small, the cashier multitasking could be allowed.

  But if it's Saturday afternoon, you want only to open more lanes due to heavy traffic.

  HT works well in loads of light work where the traffic is "burst" and ineffective. But if the workloads increases (and I believe that we all have more work to do on our systems than ever) so the benefits of HT begin to slip and the benefits of dedicated hearts really shines.

  Reference: really liked above the explanation I got from this thread: 4 Cores with Hyperthreading vs 8 physical cores? UC - Performance -

• Problem enabling creation of the Hyper-V in Windows startup!

  I use HP Pavilion Notebook 15-N-201TX, configuration are as follows:-

  • 8.1 Windows Embedded industry Pro 64-bit
  • RAM - 4 GB
  • Intel Core i5-4200U CPU
  • Mode of BIOS - UEFI, Version F.66

  Whenever I have activate the Hyper-V technology and restart the computer, it stuck on the screen start and after a while, it redirects me to diagnose the PC and launch the "Startup Repair".

  I'm a Windows Phone developer, and for this I have installed all the required components of Visual Studio, including emulators.

  I activated the technology of virtualization in the BIOS.

  At the point where I have activate the Hyper-V technology and restarts, the problem occurs...

  Any Solution?

  Thank you

  Rudraksh Pathak

  MSP-India

  Hi @rudraksh,

  Thank you for your response.

  Here is a link to the computer does not start and the lights blink or computer beeps that should help you.

  After research in the HP forum, I found the post State of the Bluetooth is not compatible with virtualization, and if you turn it off, you are then able to start.

  If this is the case, you will need to disable the Bluetooth before enabling virtualization.

  Once you leave the virtualization you can then re-enable the Bluetooth if you want.

  Please let me know if this is the case, for later use.

  If this did not help, I'm sorry, but HP does not support virtualization.

  Good luck!

• Better NUMA or Hyper Threading is for overall performance?

  Let's say I have a 5.1 ESXi host that has 2 quad-core processors with Hyper Threading, for a total of 16 logical processors. If I have a very greedy CPU VM that I want to give 8 vCPUs, it would be preferable to extend on the NUMA nodes, or apply the configuration numa.vcpu.preferHT = TRUE to force the VM to stay on a single NUMA node and use the Hyper Threading instead?

  I am interested in both to get the best performance for this virtual machine while ensuring that the other (much less CPU intensive) virtual machines running on this host didn't get hungry CPU or block this virtual machine to access the CPU.

  You must understand that this 'Core Hyperthreaded' is not true core. It can do only certain things. It is difficult to assess this performance, but I would say in common, you can not get tasks more than ~ 20% of the performance of ht-core (relative to the true core). Sometimes more, othertimes not.

  So if you run CPU tasks (such as video encoding), it is best to let your virtual machine (with 8 vCPU) to use the two pCPUs (4 real cores of each of them), even if you lose a few cycles of CPU per NUMA.

• How to activate the Hyper-V Server 2012 on Fusion 5?

  Dear members of the Forum,

  I have a Mac Pro early 2008 Intel Xeon, 16 GB under Snow Leopard and VMWare Fusion 5 installed, as well as a few virtual machines running perfectly. I decided to create a virtual computer that is running Windows Server 2012. The installation went well. However, when I tried to activate the Hyper-V technology I got in trouble.

  In the Virtual Machine settings > system settings > general: I chose "Hyper-V (not supported).

  In the processor and memory, I selected 4 cores, 4 GB and in advanced: enable applications to hypervisor...

  In other/advanced: the virtualization engine preferred: Intel VT - x with EFA

  and all the possible permutations of these selections. Nothing has worked.

  Error messages:

  Hyper-V cannot be installed. The processor has no virtualization required capabilities.

  Virtualized Intel VT-x/EPT is not supported on this platform.

  Preferred mode is unavailable. Using VT - x instead. This host does not support EFA.

  All this leads me to believe that my hardware configuration does not support the operation of computers virtual hyper-v in Fusion. According to your philosophy, we can consider this to be a reality: everything is always possible. However, what drives me nuts are guys on internet blogs, everybody saying he's working on their system! I would like to hear an authoritative voice if possible, or not.

  Thanks in advance

  EP

  Hi Eric and welcome on VMware communities!

  It is purely a matter of features of the CPU.  None of the processors that apple delivered in Early 2008 Mac Pro systems supports Extended Page Tables (EPT).  According to the list of the Mac Pro systems, the processor that you have will be E5462, E5472 or X 5482, as well as relevant on the (related) Intel Web site pages show no support for EFA everymac.com.

  Without EFA, we cannot virtualize VT - x.  In other words, the guest operating system cannot see and use virtualization assisted by material, although the merger itself will be able to make use of the hardware support of the functions of virtualization host to run the virtual machine: we can use VT - x, but cannot virtualize to make it available to a nested prompt.

  Hyper-V is entirely dependent on the hardware support for virtualization (VT - x for example), then it won't work as a guest nested in your configuration.

  Companions VMwarian jmattson produced a great entry on nested VMS requirements and functional combinations here: nested VMs running

  See you soon,.

  --

  Darius

• How to access the BIOS and disable hype-threading on xp

  How to access the BIOS and disable hype-threading on xp

  THX

  During the initial boot, you should see a brief message posted to press a specific key (usually the delete key) to access the BIOS. If there is an option to disable Hyper-Threading, you will need to find it.  You can also see if there is a guide for your motherboard and the BIOS options.

  Any reason, you need to disable?

  J W Stuart: http://www.pagestart.com