Re: [ActiveDir] DCs & Hyper-Threading

[Al Mulnick]

I've always viewed HT as that "in-between" technology while dual core chips were being developed for the x86 platform and until 64b could come of age. 

 

The thinking generally was always back and forth between use it and disable it for various Microsoft server applications.  It was discouraged for W2K by intel, but encourarged by some at Microsoft.  Supposed to have been much improved in W2K3 (it shows properly now in taskmgr if that helps :) Confusing to say the least. 

 

I've used it without issue.  I haven't really noticed a boost in perfromance either though. 

 

My thoughts: When it doubt, disable it.  The goal here is the reliability and stability of the application (Active Directory in this case) and if performance is a problem you have other options such as 64b and dual-core solutions. 

 

IIRC, HT is still discouraged if using Virtual Server but double check if you plan to use it that way.  Something in the readme as I recall that gives more information. 

 

Al

 

On 8/7/06, Wyatt, David <[EMAIL PROTECTED]> wrote:

What are people's views on whether to enable or disable hyper-threading on a Proliant box running Windows 2003 as a DC.  I remember Intel advised HT to be disabled on Windows 2000 but has this changed for Windows 2003?.  Are the performance benefits significant for a DC?

 

 

Thanks

David

 

 

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