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Thread: Dual core and machine speed

  1. #1

    Default Dual core and machine speed

    I have SUSE 11.1 currently installed with KDE 3.5 and want to make sure things are running the as fast as they can.

    First question is how do I know if the system is using both cores?

    Second question when SUSE 11.2 comes out should I change over to 64bit?

    (I plan on upgrading to KDE 4.x soon)

  2. #2
    Join Date
    Jan 2009
    Location
    Switzerland
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    Default Re: Dual core and machine speed

    Hi drogers8

    You may use the 'top' command to look at the load. It can display more than one cpu.

    As for the change to 64 bit: I don't know.

  3. #3

    Default Re: Dual core and machine speed

    I assume this is telling me I have only one core being used?

    top - 09:16:28 up 23:05, 11 users, load average: 0.12, 0.06, 0.05
    Tasks: 135 total, 2 running, 133 sleeping, 0 stopped, 0 zombie
    Cpu(s): 0.8%us, 0.3%sy, 0.0%ni, 98.7%id, 0.0%wa, 0.0%hi, 0.2%si, 0.0%st
    Mem: 8084828k total, 1963860k used, 6120968k free, 210072k buffers
    Swap: 4192956k total, 0k used, 4192956k free, 1260360k cached

  4. #4
    Join Date
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    Default Re: Dual core and machine speed

    Code:
    cat /proc/cpuinfo
    will tell you a lot about your cpu(s).
    Henk van Velden

  5. #5
    platinum NNTP User

    Default Re: Dual core and machine speed

    i didn't know that top reported on each core...but, mpstat does, i
    guess..try:

    Code:
    mpstat -P ALL
    and, i think you will get something like:

    Linux 2.6.22.19-0.4-default (linux103-32) 09/15/2009

    04:04:03 PM CPU etc>
    04:04:03 PM all etc>
    04:04:03 PM 0 etc>
    04:04:03 PM 1 etc>

    with the first core numbered "0" and the second "12...the top line a
    heading, the second line a total of all cpus..

    --
    platinum

  6. #6

    Default Re: Dual core and machine speed

    I found out that top program doesn't display the column by default that shows which core is being used. So you have to start top then press f then j <enter>. The display will now show a column on the far right that has the core number being used. Since I only have dual core the numbers 0 and 1 does show up. Thank you for your time and suggestions.

  7. #7
    Join Date
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    Default Re: Dual core and machine speed

    Start Yast - Hardware - Hardwareinfo.

    Start 'My Computer' or start Konqueror and type in addressbar: sysinfo:/
    There it will show you that you have 2 cores.


    There's also loads of plasmoids available with all kinds of system monitoring. Can be installed through Software Installer.
    ° Appreciate my reply? Click the star and let me know why.

    ° Perfection is not gonna happen. No way.

    http://en.opensuse.org/User:Knurpht
    http://nl.opensuse.org/Gebruiker:Knurpht

  8. #8
    Join Date
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    Default Re: Dual core and machine speed

    On Tue, 2009-09-15 at 14:56 +0000, drogers8 wrote:
    > I found out that top program doesn't display the column by default that
    > shows which core is being used. So you have to start top then press f
    > then j <enter>. The display will now show a column on the far right that
    > has the core number being used. Since I only have dual core the numbers
    > 0 and 1 does show up. Thank you for your time and suggestions.
    >
    >

    Additonally, type '1' to see the summary stats for all processors.



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