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SubjectRe: Hyperthreading
On Wed, 21 Aug 2002, Banai Zoltan wrote:

> If this is correct, and there is not destop P4 capable of ht,
> then what does mean the ht flag in cpuinfo?

That's a good question. I'm not sure.

> $cat /proc/cpuinfo
> processor : 0
> vendor_id : GenuineIntel
> cpu family : 15
> model : 1
> model name : Intel(R) Pentium(R) 4 CPU 1.70GHz
> stepping : 2
> cpu MHz : 1694.907
> cache size : 256 KB
> fdiv_bug : no
> hlt_bug : no
> f00f_bug : no
> coma_bug : no
> fpu : yes
> fpu_exception : yes
> cpuid level : 2
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
> bogomips : 3381.65
> ^^

You could always compile an SMP kernel and turn on ACPI System support...
If your machine boots up and shows two CPUs, it's hyperthread-capable.
Note that your BIOS also must support this feature...

--
Kelsey Hudson khudson@compendium.us
Software Engineer/UNIX Systems Administrator
Compendium Technologies, Inc (619) 725-0771
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