HT and XP

NTDEV
1

Hi,

Is it true the original XP supports HT already? I mean there is no need to
install any SP1 or SP2? Is there any way that I can turn on/of HT inside
XP, so I can test my driver for each case? I don’t find such a switch in
the BIOS (HP a350n). By the way, anything that I’d know regarding the WDM
driver for HP?

Thanks

AH

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2

You can use /ONECPU in BOOT.INI file.
However, this switch does not work exactly same way as disabling HT from
BIOS SETUP.
It seems it disables the second virtual CPU but internal cache is still
shared.
The best way to emulate one cpu working alone is disabling HT from within
BIOS.

-----Mensaje original-----
De: Ta H. [mailto:xxxxx@hotmail.com]
Enviado el: martes, 20 de enero de 2004 16:13
Para: Windows System Software Devs Interest List
Asunto: [ntdev] HT and XP

Hi,

Is it true the original XP supports HT already? I mean there is no need to
install any SP1 or SP2? Is there any way that I can turn on/of HT inside
XP, so I can test my driver for each case? I don’t find such a switch in
the BIOS (HP a350n). By the way, anything that I’d know regarding the WDM
driver for HP?

Thanks

AH

Let the new MSN Premium Internet Software make the most of your high-speed
experience. http://join.msn.com/?pgmarket=en-us&page=byoa/prem&ST=1

Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256

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3

Yes, and I think any NT OS will see HT as an SMP machine.

Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
xxxxx@storagecraft.com
http://www.storagecraft.com

----- Original Message -----
From: “Ta H.”
To: “Windows System Software Devs Interest List”
Sent: Tuesday, January 20, 2004 6:13 PM
Subject: [ntdev] HT and XP

> Hi,
>
> Is it true the original XP supports HT already? I mean there is no need to
> install any SP1 or SP2? Is there any way that I can turn on/of HT inside
> XP, so I can test my driver for each case? I don’t find such a switch in
> the BIOS (HP a350n). By the way, anything that I’d know regarding the WDM
> driver for HP?
>
> Thanks
>
> AH
>
> _________________________________________________________________
> Let the new MSN Premium Internet Software make the most of your high-speed
> experience. http://join.msn.com/?pgmarket=en-us&page=byoa/prem&ST=1
>
>
> —
> Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
>
> You are currently subscribed to ntdev as: xxxxx@storagecraft.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com