linux-kernel - Re: ht CPU flag

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Message-Id: <E1Hp6er-0001aX-00@calista.eckenfels.net>
Date:	Fri, 18 May 2007 19:54:29 +0200
From:	Bernd Eckenfels <ecki@...a.inka.de>
To:	linux-kernel@...r.kernel.org
Subject: Re: ht CPU flag

In article <Pine.LNX.4.64.0705182131030.25685@...armcci.am> you wrote:
> I have Pentium D CPU, which many Windows utilities like cpuz, wcpuid, 
> everest identify as D 930 (Dual Core, 3GHz). From Intel site I find out 
> that it has no HT feature, nor Windows XP identify it as HT.

the ht flag reported by the CPU and cpuinfo is not a reliable detection if
HT is available on your CPU or your motherboard/bios.

> Why do I have "ht" flag in cpuinfo?

Because your CPU reports it. You will see that also in cpuz output.

However, you can see ht in the sibblings value (for a single core it will be
2 if you have HT, I am not sure if it is 4 for a dual core CPU)

Gruss
Bernd
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