Alex R <[EMAIL PROTECTED]> 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:
> 
> last pid:  1420;  load averages:  0.02,  0.09,  0.15                          
>                                                       up 0+02:03:03  23:04:35
> 69 processes:  1 running, 68 sleeping
> CPU states:  3.8% user,  0.0% nice,  2.6% system,  0.8% interrupt, 92.9% idle
> Mem: 116M Active, 115M Inact, 172M Wired, 140K Cache, 110M Buf, 585M Free
> Swap: 2007M Total, 2007M Free
> 
>   PID USERNAME    THR PRI NICE   SIZE    RES STATE  C   TIME   WCPU COMMAND
>   658 alex          1  96    0   288M 33708K select 0   1:43  0.88% Xorg
>   815 alex          4  20    0 47640K 30416K kserel 0   3:49  0.00% vlc
>   998 alex          1  96    0 21660K 17372K select 0   0:21  0.00% xchat
>  1389 alex          5  20    0 62768K 54436K kserel 0   0:16  0.00% 
> firefox-bin
>   729 alex          1  96    0 31572K 27840K select 0   0:16  0.00% kdeinit
>   601 root          1  96    0  1344K   796K select 0   0:09  0.00% moused
>   717 alex          1  96    0 30360K 25588K select 0   0:06  0.00% kdeinit
>  1106 alex          1  96    0 30560K 24052K select 0   0:06  0.00% kdeinit
>   727 alex          1  96    0 32772K 29300K select 0   0:06  0.00% kdeinit
>   725 alex          1  96    0 26108K 21288K select 0   0:05  0.00% kdeinit
>   735 alex          1  60  -36 10452K  7448K select 0   0:04  0.00% artsd
>   693 alex          1  96    0  3612K  2380K select 0   0:02  0.00% gam_server
>  1412 alex          5  20    0 23520K 17816K kserel 0   0:01  0.00% 
> gnome-terminal
>   740 alex          1  96    0 25124K 20228K select 0   0:01  0.00% kdeinit
>   743 alex          1  96    0 26780K 21600K select 0   0:00  0.00% korgac
>  1391 alex          1  96    0  5852K  4536K select 0   0:00  0.00% gconfd-2
>   712 alex          1  96    0 23032K 17016K select 0   0:00  0.00% kdeinit
>   737 alex          1  96    0 24580K 19284K select 0   0:00  0.00% kdeinit
>   708 alex          1  96    0 23436K 17612K select 0   0:00  0.00% kdeinit
>  1414 alex          5  20    0  6168K  4060K kserel 0   0:00  0.00% 
> bonobo-activation-s
>  1140 alex          1  96    0 26668K 22264K select 0   0:00  0.00% kdeinit
>   715 alex          1  96    0 25080K 19584K select 0   0:00  0.00% kdeinit
>   722 alex          1   8    0  1392K   860K nanslp 0   0:00  0.00% kwrapper
>   574 root          1  96    0  3528K  2808K select 0   0:00  0.00% sendmail
>   724 alex          1  96    0 24600K 19248K select 0   0:00  0.00% kdeinit
>  1415 alex          1   4    0  3092K  1576K sbwait 0   0:00  0.00% 
> gnome-pty-helper
>  1416 alex          1   8    0  3200K  2156K wait   0   0:00  0.00% bash
>  1420 alex          1  96    0  2420K  1624K CPU0   0   0:00  0.00
> <and theres many more>
> 
> All of them are using CPU #0 though?
> 
> What am i missing here?

Is this system truly multiprocessor, or hyperthreaded?

Hyperthreading is disabled by default, due to security concerns.  Check
the value of the sysctl machdep.hypterhtreading_enabled.  If you turn
it on and the second CPU starts being used, then you have an HT system,
and not a multiprocessor system.  Then you can decide whether you're
willing to accept the potential security risk of enabling hyperthreading.

-- 
Bill Moran
http://www.potentialtech.com
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