Re: HT not active

From: Robert Hancock
Date: Mon Aug 14 2006 - 10:22:36 EST

Jan Engelhardt wrote:
I cannot get HT to be used on some machine:

w04a# cat /proc/cpuinfo processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 0
model name : Intel(R) Pentium(R) 4 CPU 1700MHz
stepping : 10
cpu MHz : 1694.890
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 up
bogomips : 3393.46

'ht' indicates:
#define X86_FEATURE_HT (0*32+28) /* Hyper-Threading */

Most P4s that I have seen have the HT flag but only some of them actually support it (and have it enabled in the BIOS). I don't think any 1.7GHz models did.

Robert Hancock Saskatoon, SK, Canada
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