[K12OSN] hyperthreading

M.Pribik mpribik at zoznam.sk
Sat Jan 29 20:35:10 UTC 2005


Hello,
I installed from distro the file "kernel-smp-2.6.9-1.681_FC3.i586.rpm".
After that and after reboot the hyperthreading is always disabled.
In BOIS hyperthreading is enabled. What have I do more? I add the results of
some important commands below:


# uname -a



Linux server.sou-coop.lan 2.6.9-1.681_FC3smp #1 SMP Thu Nov 18 15:25:11 EST
2004 i686 i686 i386 GNU/Linux





# cat /proc/cpuinfo



processor      : 0

vendor_id      : GenuineIntel

cpu family      : 15

model       : 3

model name      : Intel(R) Pentium(R) 4 CPU 2.40GHz

stepping      : 4

cpu MHz           : 2423.773

cache size      : 1024 KB

physical id      : 0

siblings      : 1

fdiv_bug      : no

hlt_bug           : no

f00f_bug      : no

coma_bug      : no

fpu         : yes

fpu_exception     : yes

cpuid level      : 5

wp          : yes

flags       : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe pni monitor ds_cpl cid
xtpr

bogomips      : 4784.12





# dmesg |grep -i cpu



Initializing CPU#0

CPU 0 irqstacks, hard=c03b3000 soft=c03ab000

CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000

CPU: After vendor identify, caps:  bfebfbff 00000000 00000000 00000000

CPU: Trace cache: 12K uops, L1 D cache: 16K

CPU: L2 cache: 1024K

CPU: Hyper-Threading is disabled

CPU: After all inits, caps:        bfebf3ff 00000000 00000000 00000080

Intel machine check reporting enabled on CPU#0.

CPU0: Intel P4/Xeon Extended MCE MSRs (12) available

CPU0: Thermal monitoring enabled

CPU0: Intel(R) Pentium(R) 4 CPU 2.40GHz stepping 04

per-CPU timeslice cutoff: 2925.45 usecs.

Brought up 1 CPUs

ACPI: Processor [CPU1] (supports C1)








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