Microsoft Hyper Threading Support

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SQL Server support in a hyper-threaded environment

    https://support.microsoft.com/en-us/help/322385/sql-server-support-in-a-hyper-threaded-environment
    Aug 05, 2015 · The core design of SQL Server is fully functional in a hyper-threaded environment. However, if you are using a hyper-threaded environment, we recommend that you do the following: Run Microsoft SQL Server 2000 Service Pack 3 (SP3) or a later service pack. Install the …

Does Windows 7 support hyperthreading? - Microsoft Community

    https://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/does-windows-7-support-hyperthreading/f327ea14-92a0-4e1f-a133-199771eb1854
    Apr 17, 2010 · Tech support scams are an industry-wide issue where scammers trick you into paying for unnecessary technical support services. You can help protect yourself from scammers by verifying that the contact is a Microsoft Agent or Microsoft Employee and that the phone number is an official Microsoft global customer service number.

Hyper-V 2012 R2 hyper-threading on or off

    https://social.technet.microsoft.com/Forums/en-US/e2e48d89-ac17-4599-b527-cac15f93bf42/hyperv-2012-r2-hyperthreading-on-or-off
    May 07, 2014 · Hello everyone! What is the best practice regarding hyper-threading for a hyper-v host and possibly in relatin to numa spanning. My thought is to turn it off because I have the idea that hyper threading messes up the numa nodes. Or does hyper-v correct this with virtual numa spanning. I cannot ... · it always depends, also on the Workload you put onto ...

Hyper-V 2012 R2 hyper-threading on or off

    https://social.technet.microsoft.com/Forums/windows/en-US/e2e48d89-ac17-4599-b527-cac15f93bf42/hyperv-2012-r2-hyperthreading-on-or-off
    May 07, 2014 · Hello everyone! What is the best practice regarding hyper-threading for a hyper-v host and possibly in relatin to numa spanning. My thought is to turn it off because I have the idea that hyper threading messes up the numa nodes. Or does hyper-v correct this with virtual numa spanning. I cannot ... · it always depends, also on the Workload you put onto ...

Understanding and using Hyper-V ... - docs.microsoft.com

    https://docs.microsoft.com/en-us/windows-server/virtualization/hyper-v/manage/manage-hyper-v-scheduler-types
    Intel refers to their SMT offerings as Intel Hyper Threading Technology, or Intel HT. For the purposes of this article, the descriptions of SMT and how it is utilized by Hyper-V apply equally to both Intel and AMD systems. ... and so on. The performance characteristics are well understood and are best optimized to support a wide range of ...

SQL Server 2012 Standard and hyperthreading core count

    https://social.msdn.microsoft.com/Forums/en-US/d2662cd7-8075-4c1f-8478-9bf6226a4bfe/sql-server-2012-standard-and-hyperthreading-core-count
    Apr 09, 2014 · I have 2 Intel E5-2640 v2 processors for my SQL Server 2012 Standard server. Each processor has 8 cores and has hyper threading so it has 16 logical cores. Will SQL standard be able to use hyper threading? Since it has a 16 core limit, does it see hyper threading as an extra core or will it ... · Hello, SQL Server is Hyperthreading aware and Microsoft ...

Windows Server 2016 Hyper-V large-scale VM performance for ...

    https://cloudblogs.microsoft.com/windowsserver/2016/09/28/windows-server-2016-hyper-v-large-scale-vm-performance-for-in-memory-transaction-processing/
    Sep 28, 2016 · Hyper-V Large-Scale VM Support in Windows Server 2016. Windows Server 2016 increases the scalability for Hyper-V virtual machines (VMs), with support for up to 240 virtual processors and 12 terabytes of memory. Below is the comparison between Windows Server 2012/2012 R2 and Windows Server 2016 for Hyper-V scalability on a per VM basis:

To Hyper-Thread or not, that is the question…. – Dude ...

    https://blogs.technet.microsoft.com/jeff_stokes/2010/09/15/to-hyper-thread-or-not-that-is-the-question/
    Jan 05, 2020 · So there was some discussion on an internal alias recently, like, well, this morning at 6 A.M….anyway, where we were talking about if having HT enabled was good or bad. Some of our performance aliases tend to equate a HT processor as 20-30% of a normal processor. It does give some benefit, but it also...

Guidance to mitigate speculative ... - docs.microsoft.com

    https://docs.microsoft.com/en-us/azure/cloud-services/mitigate-se
    Nov 12, 2019 · If the number of logical processors is greater than physical processors (cores), then hyper-threading is enabled. If you are running a hyper-threaded VM, please contact Azure Support to get hyper-threading disabled. Once hyper-threading is disabled, support will require a full VM reboot.



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