to hyperthread or not to hyperthread

From: Mike Tancsa (mike_at_sentex.net)
Date: 12/19/03

  • Next message: Scott Long: "Re: to hyperthread or not to hyperthread" 
    Date: Fri, 19 Dec 2003 17:26:10 -0500
To: stable@freebsd.org

    We are replacing a box that is fairly busy with many different processes
    (sendmail / pop3). The new MB and CPU is hyperthreading capable. Is it
    worth it to enable this ? Does anyone have any real world experiences with
    it in RELENG_4 that say one way or the other to use or not use it ?

    dmesg shows,

    CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz (2992.52-MHz 686-class CPU)
       Origin = "GenuineIntel" Id = 0xf29 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,S
    SE2,SS,HTT,TM,PBE>
       Hyperthreading: 2 logical CPUs

            ---Mike
    --------------------------------------------------------------------
    Mike Tancsa, tel +1 519 651 3400
    Sentex Communications, mike@sentex.net
    Providing Internet since 1994 www.sentex.net
    Cambridge, Ontario Canada www.sentex.net/mike

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  • Next message: Scott Long: "Re: to hyperthread or not to hyperthread"

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