Getting Processor Information

  • I have just ran lshw to get some information about a machine I know nothing about, and I just wanted to confirm something.

    Does this basically mean it is a dual core 64 bit processor that is installed?

        description: Logical CPU      
        physical id: 0.1          
        width: 64 bits          
        capabilities: logical       
        description: Logical CPU           
        physical id: 0.2              
        width: 64 bits           
        capabilities: logical

    Looking further down I see this

          physical id: 1
          bus info: [email protected]
          version: 6.7.6
          serial: 0001-0676-0000-0000-0000-0000
          size: 3150MHz
          capabilities: vmx ht
          configuration: id=0
             description: Logical CPU
             physical id: 0.1
             capabilities: logical
             description: Logical CPU
             physical id: 0.2
             capabilities: logical

    Which makes me almost certain it is dual core but not convinced on the 64 bit.

    Any help for this n00b would be greatly appreciated!

    Might be wrong, but that looks more like a single core doing hyperthreading, which presents two "logical cores".

    @Scaine Do you know if there is a way to confirm that?

    I'm no expert on lshw, Toby, sorry. I've amended my answer to reflect the output from my core2Duo processor (no hyperthreading). Hope this helps.

    what about a single command in the terminal?

  • Scaine

    Scaine Correct answer

    10 years ago

    It's often overlooked, so worth a shot. Sorry if this is insultingly obvious :

    System Preferences

    Alt-F2, then gnome-system-monitor

    Also, when I ran sudo lshw | grep -i cpu, I see a line which says cpus=2.

    enter image description here

    Ha, thanks - that **was** overlooked! That has listed two processors both Core 2 Duos @3.16GHz. What it doesn't do it confirm if this is a 64 bit machine or not.. (or am I being dense and that fact is staring me in the face?)

    `uname -r` should help with that, surely? Or the same screenshot shows that I'm running 32-bit (my kernel is "generic").

    I didn't set up the machine in the first place and I think the person who did erred on the site of caution and may have went for generic when they could have went higher. Thanks so much for your help. I have all the information I need now!

    Actually, `uname -m` tells you whether the OS is 64 bits or not. On a 64-bits machine, it returns `x86_64`.

    I'd stick with generic myself, Toby. Arguments for both sides... AGAINST : and FOR : Unless you're a developer or heavy power user video editor type thingymajig... 32-bit is fine for a while longer.

    @Lekensteyn : Never knew that! You learn something new every day!

    @Scaine: 64 bits vs 32 bits is an off-topic discussion here. 64 bits applications cannot run on a 32 bits OS, but the reverse is possible. As 64 bits is the future (even if it is available since 2000), I'll stick to an 64 bits OS and recommend others 64 bits as well.

    Horses for courses. I'm with you actually - the next build I do will be 64-bit, but all I'm saying is that 32-bit is still very much alive and kicking. But you're quite right. This *is* OT. :-)

    If you stick with 32bit, at least use the -generic-pae kernel so you can get access to all your memory and gain the NX bit for security.

    my system monitor doesnt have this tab :-(

    I am using remote server

    How do I do it using a temrinal

    That is no longer part of the System monitor. Now you can go `Settings -> Details` to see hardware info.

  • To get the Processor model use the below command in a terminal.

    cat /proc/cpuinfo  | grep 'name'| uniq

    To get the information about number of processors

    cat /proc/cpuinfo  | grep process| wc -l

    I like this answer better.

    For future Googlers - this command doesn't work on ARM processors as the output is very different in at least 18.04. The `lscpu` command below works well.

    `grep` could handle files as well as stdout, so you could simplify it like this: `grep name /proc/cpuinfo | uniq`

  • The simplest way to do this is to use the command created for that, lscpu:

    [email protected]:~$ lscpu
    Architecture:          x86_64
    CPU op-mode(s):        32-bit, 64-bit
    Byte Order:            Little Endian
    CPU(s):                2
    On-line CPU(s) list:   0,1
    Thread(s) per core:    1
    Core(s) per socket:    2
    Socket(s):             1
    NUMA node(s):          1
    Vendor ID:             GenuineIntel
    CPU family:            6
    Model:                 55
    Model name:            Intel(R) Celeron(R) CPU  N2840  @ 2.16GHz
    Stepping:              8
    CPU MHz:               697.301
    CPU max MHz:           2582,3000
    CPU min MHz:           499,8000
    BogoMIPS:              4331.60
    Virtualization:        VT-x
    L1d cache:             24K
    L1i cache:             32K
    L2 cache:              1024K
    NUMA node0 CPU(s):     0,1
    Flags:                 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 ht tm
    pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl 
    xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor 
    ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt  
    tsc_deadline_timer rdrand lahf_lm 3dnowprefetch epb tpr_shadow vnmi 
    flexpriority ept vpid tsc_adjust smep erms dtherm ida arat

    This command will tell you your chipset's characteristics as well as any supported instructions (or flags) in an easy-to-use and simple-to-read manner.

  • In ubuntu 14.04 desktop, the system monitor tool no longer has a "System" tab. You should see roughly the same screen like this:

    1. click the settings wheel (to clarify: the taskbar icon in the absolute upper-right hand corner of the screen: enter image description here)
    2. choose "About this Computer"

    Sorry, what is the 'settings wheel'?

    @DenisGolomazov - sorry, i just edited the answer to explain

    This no longer works on Ubuntu 16. You need to click on the item title "Details" from the "System Settings"

    work for me ubuntu 16.04 at top of the menu

  • The Hardware Lister application (lshw-gtk) from the default Ubuntu repositories is a user-friendly GUI application that displays detailed information about your computer's hardware including the model name and architecture (32-bit or 64-bit) of the CPU.

    Simply select a category to obtain detailed information about a hardware component from the main interface.

    Hardware Lister

  • Use the uname -m or arch command from the terminal.

    For a 64-bit processor and kernel, the command will output x86_64.

    Those commands output "x86_64" which identifies that 64-bit software is being used. However, it doesn't answer question of whether or not there is a dual core processor. Using `sudo lshw -class CPU` will provide model number of processor which can be googled to get full specifications of that chip which could be single core, hyper-threaded.

    Note, though, that with this result, your system will not output `x86_64` if you do not have the 64-bit kernel installed on your system.

    Thank you @KazWolfe for the edit. I was searching for this answer to run some Benchmarking suites on different processors, and came across these commands.

  • The simplest way is from Launcher select System Settings-->Details:

    System Settings About

    This identifies both your CPU model number and whether 32-bit or 64-bit software is running. It also displays other useful information such as amount of RAM.

    Now take your CPU model number in google search engine type 3630QM number of cores:

    3630QM number of cores

    Replace 3630QM with the model number you get from the first display.

    All the other answers are great answers but if you really want the "simplest" way of doing this I believe this is the preferred method without opening a terminal session or installing new software.

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Content dated before 6/26/2020 9:53 AM