Improving SMP performance?

[George Liaskos]

On Wed, Apr 28, 2010 at 3:32 AM, Neil Short <neshort at yahoo.com> wrote:
> I'm somewhat disappointed in the performance in my laptop which is supposed to have a really fast processor. Is there some way to get more out of the processor?
>
>
> [neshort/] uname -a
> FreeBSD carmen 8.0-STABLE FreeBSD 8.0-STABLE #1: Thu Apr 15 19:54:24 MST 2010     neshort at carmen:/usr/obj/usr/src/sys/CARMEN  i386
> [neshort/] dmesg
> ...
> Timecounter "i8254" frequency 1193182 Hz quality 0
> CPU: Intel(R) Core(TM) i3 CPU       M 330  @ 2.13GHz (2127.92-MHz 686-class CPU)
>  Origin = "GenuineIntel"  Id = 0x20652  Family = 6  Model = 25  Stepping = 2
>  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=0x98e3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,POPCNT>
>  AMD Features=0x28000000<RDTSCP,LM>
>  AMD Features2=0x1<LAHF>
>  TSC: P-state invariant
> real memory  = 4294967296 (4096 MB)
> avail memory = 3066707968 (2924 MB)
> ACPI APIC Table: <HPQOEM SLIC-MPC>
> FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
> FreeBSD/SMP: 1 package(s) x 2 core(s) x 2 SMT threads
>  cpu0 (BSP): APIC ID:  0
>  cpu1 (AP): APIC ID:  1
>  cpu2 (AP): APIC ID:  4
>  cpu3 (AP): APIC ID:  5
>
>
> ======
>
>  "What did you do?" the man holding the flashlight asked.
>
>  "I put down a spider," he said, wondering why the man didn't see; in the beam of yellow light the spider bloated up larger than life. "So it could get away."
>
>
>
>
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What is the value of dev.cpu.0.freq? Does it match the specification
of your cpu?