Re: 5.3 & SMP How do I know my 2 CPUs are used?

From: Andre Guibert de Bruet (andy_at_siliconlandmark.com)
Date: 10/28/04

  • Next message: Ryan Sommers: "Re: 5.3 & SMP How do I know my 2 CPUs are used?" 
    Date: Thu, 28 Oct 2004 09:07:45 -0400 (EDT)
To: Rob <spamrefuse@yahoo.com>

    On Thu, 28 Oct 2004, Rob wrote:

    > I have tried to create a kernel for my dual CPU motherboard:
    > Intel Pentium III (801.82-MHz 686-class CPU)
    >
    > But what is the command that proofs to me that
    > both CPUs are indeed recognized and in use.
    > Is it the dmesg output, or mptable command?
    [snip]
    > So? Am I there? Is my FreeBSD now running on two processors?

    One cannot tell from the text that you pasted. Look for the following
    message to be printed out in a boot -v:

    FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
      cpu0 (BSP): APIC ID: 0
      cpu1 (AP): APIC ID: 1
      cpu2 (AP): APIC ID: 2
      cpu3 (AP): APIC ID: 3

    I have a boot -v and a kernel config for a dual-proc athlon up at:
    http://bling.properkernel.com/freebsd/boot-v.txt
    http://bling.properkernel.com/freebsd/BLING

    > With the top command, I can't see anything special for my 2 CPUs.
    > Is that right?

    Under SMP, there's a "C" column that shows up:

      PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU CPU COMMAND
    2782 root 5 0 2080K 1448K ttyin 3 7:35 1.95% 1.95% systat

    Regards,
    Andy

    | Andre Guibert de Bruet | Enterprise Software Consultant >
    | Silicon Landmark, LLC. | http://siliconlandmark.com/ >
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  • Next message: Ryan Sommers: "Re: 5.3 & SMP How do I know my 2 CPUs are used?"

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