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Date: Sat, 02 Jun 2007 18:43:52 -0500
To: freebsd@schlossadler.net
From: JD Bronson <jbronson@sixcompanies.com>
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Cc: freebsd-questions@freebsd.org
Subject: Re: SMP System but only CPU#0 being used?
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At 09:41 AM 6/3/2007 +1000, Alex R wrote:
>Hi All,
>
>Just wondering about something here.
>
>First of all, I am running FreeBSD 6.2-STABLE
>
>and the CPU stats (parts of dmesg)
>
>CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz (2992.52-MHz 686-class CPU)
>   Origin = "GenuineIntel"  Id = 0xf49  Stepping = 9
>
>Features=0xbfebfbff<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,HTT,TM,PBE>
>   Features2=0x641d<SSE3,RSVD2,MON,DS_CPL,CNTX-ID,CX16,<b14>>
>   AMD Features=0x20100000<NX,LM>
>   AMD Features2=0x1<LAHF>
>   Logical CPUs per core: 2
>real memory  = 1065287680 (1015 MB)
>avail memory = 1033314304 (985 MB)
>ACPI APIC Table: <GBT    AWRDACPI>
>FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
>  cpu0 (BSP): APIC ID:  0
>  cpu1 (AP): APIC ID:  1
>
>SMP: AP CPU #1 Launched!
>
>Now some processes:

If this is HTT (seems to be)
and not 'real' dual processors....

I just answered this last week?

Check /etc/sysctl.conf for this:

machdep.hyperthreading_allowed=1


-JD