Re: support for hyperthreading?

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>>>>> "SA" == Saqib Ali <saqib@xxxxxxxxxxxxx> writes:

SA> Does the latest Linux Kernel support Intel's new HyperThreading
SA> processors?

No problems here; I don't know why the other posters say it doesn't
work.  This machine has two 2.6GHz P4 Xeons:

> cat /proc/version
Linux version 2.4.18-24.8.0bigmem (bhcompile@xxxxxxxxxxxxxxxxxxxxxxx)
(gcc version 3.2 20020903 (Red Hat Linux 8.0 3.2-7)) #1 SMP Fri Jan 31
05:28:28 EST 2003

>  free
             total       used       free     shared    buffers     cached
Mem:       6199364     435124    5764240          0     165984     170916

> cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 2
model name      : Intel(R) Xeon(TM) CPU 2.60GHz
stepping        : 7
cpu MHz         : 2599.799
cache size      : 512 KB
Physical processor ID   : 0
Number of siblings      : 2
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        : 5153.76

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 15
model           : 2
model name      : Intel(R) Xeon(TM) CPU 2.60GHz
stepping        : 7
cpu MHz         : 2599.799
cache size      : 512 KB
Physical processor ID   : 0
Number of siblings      : 2
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        : 5187.17

processor       : 2
vendor_id       : GenuineIntel
cpu family      : 15
model           : 2
model name      : Intel(R) Xeon(TM) CPU 2.60GHz
stepping        : 7
cpu MHz         : 2599.799
cache size      : 512 KB
Physical processor ID   : 3
Number of siblings      : 2
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        : 5187.17

processor       : 3
vendor_id       : GenuineIntel
cpu family      : 15
model           : 2
model name      : Intel(R) Xeon(TM) CPU 2.60GHz
stepping        : 7
cpu MHz         : 2599.799
cache size      : 512 KB
Physical processor ID   : 3
Number of siblings      : 2
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        : 5187.1

 - J<



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